APPENDIX B: ALIGNMENT STAR LIBRARY AND STAR CHARTS:
1. Alignment Stars
The CDS utilizes 33 bright and well-known stars to calibrate the telescope’s Object Library during the
computerized alignment process. These stars were selected to allow observers from anywhere in the world
on any given night, to be able to easily and quickly make precision alignments. The CDS Alignment Star
Library and Star Charts are listed below for your reference:
2. Star Charts (for Northern Hemisphere Observers)
SOUTHEAST
January 7:00 to 9:00
SOUTHWEST
March 7:00 to 9:00
SOUTH
February 7:00 to 9:00
NORTH
April 7:00 to 9:00
NORTH
May 7:00 to 9:00
NORTH
June 7:00 to 9:00
- 22 -
Polaris
Alkaid
Overhead
Vega
Deneb
Polaris
Alkaid
Overhead
Vega
Deneb
Overhead
Vega
Deneb
Altair
Polaris
Alkaid
Overhead
Vega
Deneb
Overhead
Deneb
Aldebaran
Rigel
Overhead
NORTH
July 7:00 to 9:00
NORTH
September 7:00 to 9:00
NORTH
August 7:00 to 9:00
NORTH
October 7:00 to 9:00
NORTHWEST
November 7:00 to 9:00
SOUTHEAST
December 7:00 to 9:00
- 23 -
APPENDIX C: #1697 CDS 64,359-Object Library
1. Overview: 64,359 Object Library
The CDS 64,359-Object Library is a collection of the most studied and fantastic objects in the sky.
This library consists of the following object databases:
• 110 Messier objects.
• 351 bright stars, interesting double stars and Sigma Octans (the southern star) in the star .
•15,928 SAO (Smithsonian Astrophysical Observatory) Catalog of Stars: all stars brighter than 7th
magnitude.
•7,840 NGC (New General Catalog*) objects: complete catalog.
•5,386 IC (Index Catalog*) objects: complete catalog.
•12,921 UGC (Uppsala General Catalog) galaxies: complete catalog.
•8 Major Planets and the Moon.
2. Accessing the Object Databases
A. Messier Catalog:
1. Press the M key.
2. Enter the number of the desired Messier object and press ENTER.
3. Object information will appear on the display.
B. Planets and Moon:
The CDS calculates the orbital positions of the Moon and the eight major planets for the current calendar
date. To access the Moon or a planet, press the STAR key and enter the appropriate number as
indicated below:
1. Press the STAR key on the Hand Controller, then press ENTER.
2. Use the PREV and NEXT keys to cycle through the following options:
NAMEAlphebetical listing of 33 bright alignment stars.
STAR250 brightest stars, 100 interesting double stars and Sigma Octans (the southern hemisphere).
The list of stars begins on page 27.
SAOThe Smithsonian Astrophysical Observatory catalog of stars (all stars brighter than 7th
magnitude).
GCVSThe General Catalog of Variable Stars (complete catalog). Variable stars from the GCVS are
entered using a six digit number. The first two digits, refer to the constellation where the
variable star is located and is listed in the table below. The next four digits are assigned
sequentially within each constellation according to the standard sequence of variable-star
designations (R, S, ...). Therefore, the first variable star in the constellation of Virgo would be
entered as: 860001.
3. Press Enter when the desired catalog is selected. An arrow will appear to the right of the selected
catalog.
4. Press MODE to activate the curser. Using the keypad, enter the number of the desired selection
into the Hand Controler and press ENTER. The object information of the selected object then appears
on the screen.
* NGC 2000 and IC databases are copyrighted by Sky Publishing Corporation and used with their permission.
- 24 -
D. CNGC, IC, and UGC catalogs:
1. Press the CNGC key on the Hand Controller, then press ENTER.
2. Use the PREV and NEXT keys to cycle through the following options:
NGCNew General Catalog (complete catalog).
ICIndex Catalog (complete catalog).
UGCUppsala General Catalog (complete catalog).
3. Press Enter when the desired catalog is selected. An arrow will appear to the right of the selected
catalog.
4. Press MODE to activate the curser. Using the keypad, enter the number of the desired selection
into the Hand Controler and press ENTER. The object information of the selected object then appears
on the screen.
The CDS “remembers” the database you last accessed. Each time you press the CNGC key, the same
object database will be displayed on the first line of the Keypad display. To change databases, press ENTER
to bring up the database menu.
3. The Meade CNGC* Catalog
You will notice that the Messier (M) objects, and the NGC objects have been incorporated into the Meade
Instruments CNGC listing. CNGC stands for “Computerized New General Catalog of Non-Stellar
Astronomical Objects”. The CNGC is an enhancement from the RNGC (Revised New General Catalog)
in many ways. Angular sizes are given in arc-seconds on the CNGC listing, and in a convenient scaled
format on the CDS Keypad Display.
The complete CNGC contains 7,840 objects, most of which appear in the RNGC (Revised New General
Catalog) with the same number. More than 400 objects were added to the RNGC to create the CNGC. Most
of these “should have been” in the RNGC in the sense that they are bright and large enough to have been
included.
The CNGC is enhanced from the RNGC in many ways. Angular sizes are given in arc-seconds on the
CNGC listing, and in a convenient scaled format on the CDS display. Magnitudes are given to 0.1
magnitude where possible.
The coordinates in the CNGC listing are listed for the year 2000. The CDS calculates object positions upon
power up to the current date (as shown on the time/date display). This makes the CDS pointing more
accurate. Therefore, the CNGC listing and the CDS display will not exactly agree on object positions.
Objects have been assigned a “Visual Quality Rating”, henceforth called VQ. A large number of VQs have
been obtained by direct visual observations the objects. To make the VQs as useful as possible, all
observations have been made with the same telescope and eyepiece under essentially identical observing
conditions. A higher power eyepiece was used only for very small objects. Your “Visual Quality Rating” of
a particular object will vary, largely due to sky conditions.
If the object has been rated by observation, an upper-case character (ABCDEFG) is used for the VQ on the
CNGC listing. If the object has not been observed, the VQ has been estimated by a computer program from
the object type, size, and brightness and the VQ is specified in lower-case characters (abcdefg). The VQs
for visually-rated objects are a considerably more consistent guide to observability and appearance than
either the computed VQs or an examination of the type, magnitude, and size data.
All, or very nearly all, of the objects in the CNGC are visible with the standard instrumentation and observing
conditions used to obtain the visual quality ratings. It is a good indication of what can be expected with
similar equipment by experienced deep-sky observers in excellent sky conditions. Naturally smaller
telescopes and/or less optimal observing conditions will lower the apparent quality of all objects.
* The Meade CNGC Catalog is copyright by Meade Instruments Corporation.
- 25 -
The following guide to VQs was used in the visual observing process.
SUPERVery bright object with very interesting shape or structure.
Bright object with very interesting shape or structure.
EXCELOR
Very bright object with moderately interesting shape or structure.
Bright object with moderately interesting shape or structure.
V GOODOR
Very bright object with little or no interesting shape or structure.
Easy to see without averted vision with some interesting shape or structure.
GOODOR
Bright object, but little or no interesting shape or structure.
FAIREasy to see without averted vision, but little or no interesting shape or structure.
POOREasy to see with averted vision. Often borderline visible without averted vision.
V POORA struggle to see with careful use of averted vision.
Not yet rated AND missing information for computer estimate.
(none)OR
Could not see despite careful use of averted vision.
The following is a description of the format of the optional CNGC listing for each object:
COLUMNNAMEDESCRIPTION
1CNGC #CNGC 0001 through CNGC 7840
2RARight Ascension
3DECDeclination
4SIZESize of object (arc-seconds)
5MAGMagnitude (-5.5 through 19.9)
6TYPEType of object
7** means object is not in the RNGC
8ALT CATAlternate catalog name and number
9VQVisual Quality Rating (abcdefg ) or (ABCDEFG)
10TAGSObject Type # (0-F) : S = Sky-Cat : T = Tirion
11COMMENTSName, comments, other information
- 26 -
The following types are distinguished in the CNGC.
TYPELEGENDDESCRIPTION
0NoneUnverified Southern Object
1OPENOpen Cluster
2GLOBGlobular Cluster
3DNEBDiffuse Nebula
4PNEBPlanetary Nebula (or SN Remnant)
5GALGalaxy
6OPEN + DNEBOpen Cluster + Diffuse Nebula
7NoneNon-Existent Object
8STARStar
9MULTI+STARMultiple Star
AMULTI+GALMultiple Galaxy (Usually Interacting)
BDNEBDark Nebula in front of Diffuse Nebula
CGAL+OPENOpen Cluster in External Galaxy
DGAL+GLOBGlobular Cluster in External Galaxy
EGAL+DNEBDiffuse Nebula in External Galaxy
FGAL+OPEN+DNEBOpen Cluster + Diffuse Nebula in Galaxy
SObject is also listed in the Sky Catalogue 2000
TObject is also listed in the Tirion Sky Atlas 2000
- 27 -
a. STAR CATALOG
STAR#RADECSIZEMAGTYPE & DESCRIPTIONALT NAMEQ TAGS COMMON NAME/COMMENTS
*32517 05.4 +54 28195.7 STAR 5.7:5.7 @025ADS 103459 ST1980=1.9 @042
*32617 15.4 -26 35485.1 STAR 5.1:5.1 @151ADS 104179 STOrange:Orange
*32717 14.7 +14 24473.2 STAR 3.2:5.4 @107ADS 104189 ST1968 Yellow:Blue
*32817 23.7 +37 08404.6 STAR 4.6:5.5 @316ADS 105269 ST1964
*32918 01.5 +21 36655.1 STAR 5.1:5.2 @258ADS 109939 ST1953 Yellow:pRed
*33018 03.1 -08 11185.2 STAR 5.2:5.9 @280ADS 110059 ST1980=1.9 @277
*33118 05.3 +02 32154.2 STAR 4.2:6.0 @220ADS 110469 STYel-Ora:Ora
*33218 25.0 +27 2476.5 STAR 6.5:7.5 @126ADS 113349 ST1980=0.7 @129
*33318 35.8 +16 58156.8 STAR 6.8:7.0 @155ADS 114839 ST1980=1.6 @161
*33418 44.4 +39 40265.0 STAR 5.0:6.1 @353ADS 116359 ST1980=2.7 @355 White
*33518 44.4 +39 36245.2 STAR 5.2:5.5 @080ADS 116359 ST1980=2.3 @084 White
*33618 57.1 +32 54105.4 STAR 5.4:7.5 @021ADS 118719 ST1980=1.1 @051
*33719 06.4 -37 03134.8 STAR 4.8:5.1 @109Gamma CrA9 ST1980=1.5 @157
*33819 26.5 +27 19208.1 STAR 8.1:8.4 @292ADS 124479 ST1980=1.8 @293
*33919 30.7 +27 583443.2 STAR 3.2:5.4 @054ADS 125409 ST1967 Gold:Blue
*34019 45.5 +33 37248.3 STAR 8.3:8.4 @349ADS 128899 ST1980=2.0 @357
*34120 21.0 -14 4620503.1 STAR 3.1:6.2 @267Beta Cap 9 STYellow:Blue
*34220 46.6 +16 08984.3 STAR 4.3:5.2 @268ADS 142799 ST1967 Gold:Blue-Gre
*34320 47.5 +36 2994.9 STAR 4.9:6.1 @011ADS 142969 STWhite:pBlue
*34420 59.1 +04 18106.0 STAR 6.0:6.3 @285ADS 144999 ST1980=1.1 @286
*34521 02.3 +07 11287.3 STAR 7.3:7.5 @217ADS 145569 ST1961
*34621 06.7 +38 422975.2 STAR 5.2:6.0 @148ADS 146369 ST1980=29.0 @146
*34722 28.8 +00 15194.3 STAR 4.3:4.5 @207ADS 159719 STpYellow:pBlue
*34822 28.2 +57 42339.8 STAR 9.8:11.5 @132ADS 159729 ST1980=2.6 @176 Reds
*34922 33.0 +69 5546.5 STAR 6.5:7.0 @094ADS 160579 ST1980=0.5 @086
*35023 34.0 +31 2045.6 STAR 5.6:5.7 @280ADS 168369 ST1980=0.4 @267
*35121 12.3 -88 585.5 STAR VAR 5.3-5.7 F0IIISigma Oct8 STS-Pole * Sigma Oct
- 34 -
b. M CATALOG
M#RADECSIZEMAGTYPE & DESCRIPTIONALT NAMEQ TAGS COMMON NAME/COMMENTS
M 105 34.5 +22 013608.4 PLAN NEB EMIS SN REMCNGC 1952 B 4 STM1 Crab Nebula 4kly
M 221 33.5 -00 507746.5vGLOB CLUS sp=F4CNGC 7089 C 2 STM2 40kly
M 313 42.3 +28 239726.4vGLOB CLUS sp=F7CNGC 5272 B 2 STM3 35kly
M 416 23.7 -26 3115785.9vGLOB CLUS sp=G0CNGC 6121 B 2 STM4 14kly
M 515 18.6 +02 0510445.8vGLOB CLUS sp=F6CNGC 5904 B 2 STM5 26kly
M 617 40.1 -32 139004.2vOPEN CLUS sp=B4CNGC 6405 C 1 STM6 1500ly
M 717 54.0 -34 4948003.3vOPEN CLUS sp=B5CNGC 6475 C 1 STM7 800ly
M 818 03.2 -24 2354005.2 OPEN CLUS + ENEB sp=O5 CNGC 6523 B 6 STM8 Lagoon Nebula 5100ly
M 917 19.2 -18 315587.9vGLOB CLUSCNGC 6333 D 2 STM9
M 1016 57.1 -04 079066.6vGLOB CLUS sp=G1CNGC 6254 D 2 STM10 20kly
M 1118 51.1 -06 168405.8vOPEN CLUS sp=B8CNGC 6705 C 1 STM11 Very rich 5600ly
M 1216 47.2 -01 578706.6vGLOB CLUS sp=F8CNGC 6218 D 2 STM12 24kly
M 1316 41.7 +36 279965.9vGLOB CLUS sp=F6CNGC 6205 B 2 STM13 Hercules Globular
M 1417 37.6 -03 177027.6vGLOB CLUSCNGC 6402 D 2 STM14
M 1521 30.0 +12 107386.4vGLOB CLUS sp=F2CNGC 7078 C 2 STM15 X-Ray Source 34kly
M 1618 18.8 -13 4721006.0vOPEN CLUS + ENEB sp=O7 CNGC 6611 D 6 STM16 Eagle Nebula 5500ly
M 1718 20.8 -16 1127606.0v
M 1818 20.0 -17 085406.9vOPEN CLUSCNGC 6613 D 1 STM18
M 1917 02.6 -26 158107.2vGLOB CLUS OBLATECNGC 6273 D 2 STM19 Oblate Shape Globular
DIFF ENEB + OPEN CLUS HII
CNGC 6618 B 6 STM17 Omega/Swan/Horseshoe
M 2018 02.3 -23 0217406.3v
M 2118 04.6 -22 307805.9vOPEN CLUSCNGC 6531 D 1 STM21
M 2218 36.3 -23 5614405.1vGLOB CLUS sp=F7CNGC 6656 C 2 STM22 10kly
M 2317 57.0 -19 0116205.5vOPEN CLUS sp=B8CNGC 6494 D 1 STM23 1400ly
M 2418 20.0 -18 2648004.7 OPEN CLUSCNGC 6630 c 1 TM24 Best with large field
M 2518 33.5 -19 1424006.5 OPEN CLUS SPARSECNGC 6634 c 1M25 IC 4725 Sparse Cluster
M 2618 45.4 -09 249008.0vOPEN CLUSCNGC 6694 D 1 STM26
M 2719 59.6 +22 439107.6pPLAN NEBCNGC 6853 B 4 STM27 Dumbbell Nebula 3500ly
M 2818 24.6 -24 526726.9vGLOB CLUSCNGC 6626 D 2 STM28
M 2920 23.9 +38 324206.6vOPEN CLUSCNGC 6913 D 1 STM29
M 3021 40.3 -23 116607.5vGLOB CLUSCNGC 7099 D 2 S M30
M 3100 42.8 +41 17106803.5 GALAXY Sb I-IIUGC 454B 5 STM31 Andromeda Gal 178x63
M 3200 42.8 +40 534568.2 GALAXY E2UGC 452C 5 STM32 Comp of M31 7.6x5.8
M 3301 33.9 +30 4037205.7 GALAXY Sc II-IIIUGC 1117 C 5 STM33 Triangulum Gal 62x39
M 3402 42.0 +42 4721005.2vOPEN CLUSCNGC 1039 C 1 STM34
M 3506 08.9 +24 2116805.1vOPEN CLUS sp=B5CNGC 2168 C 1 STM35 2800ly
M 3605 36.2 +34 087206.0vOPEN CLUSCNGC 1960 C 1 STM36
M 3705 52.4 +32 3314405.6vOPEN CLUS sp=B8CNGC 2099 C 1 STM37 4200ly
M 3805 28.7 +35 5112606.4vOPEN CLUS sp=B5CNGC 1912 C 1 STM38 4600ly
M 3921 32.2 +48 2619204.6vOPEN CLUSCNGC 7092 D 1 STM39
M 4012 36.4 +25 599729.6 GALAXY Sb I: + 3-SYS FNT UGC 7772 B A STM40 16.2x2.8 Edge-On Lane
M 4106 47.1 -20 4522804.5vOPEN CLUS sp=B4CNGC 2287 C 1 STM41 2200ly
M 4205 35.3 -05 2339603.9 DIFF RNEB + ENEBCNGC 1976 A 3 STM42 Orion Nebula Blue+Red
M 4305 35.5 -05 1612005.8 DIFF RNEB + ENEBCNGC 1982 C 3 STM43 Orion Nebula Extension
M 4408 40.1 +19 5957003.1vOPEN CLUS sp=A0CNGC 2632 C 1 STM44 Praesepe/Beehive 590ly
DIFF ENEB + OPEN CLUS HII
CNGC 6514 B 6 STM20 Trifid Nebula 3500ly
M 4503 47.1 +24 0772001.6 OPEN CLUS + RNEB sp=B6 CNGC 1457 c 6 STM45 Pleiades 410ly
M 4607 41.9 -14 4916206.1vOPEN CLUS sp=B8CNGC 2437 C 1 STM46 5400ly (+CNGC 2438 PN)
M 4707 36.6 -14 2918004.4vOPEN CLUS sp=B3CNGC 2422 D 1 STM47 1600ly
M 4808 13.7 -05 4732405.8vOPEN CLUSCNGC 2548 D 1 STM48
M 4912 29.8 +08 005348.4 GALAXY E4UGC 7629 C 5 STM49 8.9x7.4
M 5007 02.9 -08 209605.9vOPEN CLUSCNGC 2323 D 1 STM50
M 5113 30.0 +47 116608.4 GALAXY Sc I 2-SYS FACE UGC 8493 B A STM51 11.0x7.8 Whirlpool Gal
M 5223 24.2 +61 367806.9vOPEN CLUSCNGC 7654 D 1 STM52
M 5313 13.0 +18 107567.7vGLOB CLUSCNGC 5024 D 2 STM53
M 5418 55.2 -30 285467.7vGLOB CLUSCNGC 6715 D 2 STM54
- 35 -
M CATALOG
M#RADECSIZEMAGTYPE & DESCRIPTIONALT NAMEQ TAGS COMMON NAME/COMMENTS
M 5519 40.1 -30 5611407.0 GLOB CLUS sp=F5CNGC 6809 D 2 STM55 20kly
M 5619 16.6 +30 104268.3vGLOB CLUSCNGC 6779 D 2 STM56
M 5718 53.5 +33 021509.7pPLAN NEB RING-LIKECNGC 6720 B 4 STM57 Ring Nebula 5kly
M 5812 37.8 +11 493249.8 GALAXY SbUGC 7796 C 5 STM58 5.4x4.4 Near CNGC 4621
M 5912 42.1 +11 383069.8 GALAXY E3UGC 7858 D 5 STM59 5.1x3.4 Near CNGC 4579
M 6012 43.7 +11 334328.8 GALAXY E1UGC 7898 D 5 STM60 7.2x6.2 Near CNGC 4621
M 6112 22.0 +04 283609.7 GALAXY Sc I 2-SYSUGC 7420 D A STM61 6.0x5.5 Face-On
M 6217 01.3 -30 078466.6vGLOB CLUS OBLATECNGC 6266 D 2 STM62 Non-symmetrical
M 6313 15.8 +42 027388.6 GALAXY Sb+ IIUGC 8334 C 5 STM63 12.3x7.6 Sunflower Gal
M 6412 56.7 +21 415588.5 GALAXY Sb-UGC 8062 C 5 STM64 9.3x5.4 Black Eye Gal
M 6511 18.9 +13 056009.3 GALAXY Sb II:UGC 6328 C 5 STM65 10.0x3.3 Near M66
M 6611 20.2 +12 595229.0 GALAXY Sb+ II:UGC 6346 C 5 STM66 8.7x4.4 Near M65
M 6708 51.1 +11 4918006.9vOPEN CLUS sp=F2CNGC 2682 D 1 STM67 Very old 2700ly
M 6812 39.4 -26 467208.2vGLOB CLUSCNGC 4590 D 2 STM68
M 6918 31.4 -32 214267.7vGLOB CLUSCNGC 6637 D 2 STM69
M 7018 43.2 -32 184688.1vGLOB CLUSCNGC 6681 D 2 STM70
M 7119 53.7 +18 474328.3vGLOB CLUSCNGC 6838 D 2 STM71
M 7220 53.5 -12 333549.4vGLOB CLUSCNGC 6981 D 2 STM72
M 7320 59.0 -12 371688.9pOPEN CLUSCNGC 6994 D 1 STM73
M 7401 36.7 +15 476129.2 GALAXY Sc IUGC 1149 D 5 STM74 10.2x9.5
M 7520 06.2 -21 553608.6vGLOB CLUSCNGC 6864 D 2 STM75
M 7601 42.0 +51 3429012.2 PLAN NEB PART OF 0651CNGC 0650 C 4 STM76 Little Dumbbell Nebula
M 7702 42.7 -00 014148.8 GALAXY Sbp SEYFERTUGC 2188 D 5 STM77 6.9x5.9 Seyfert Galaxy
M 7805 46.8 +00 0348011.3 DIFF RNEBCNGC 2068 C 3 STM78 Blue 1500ly
M 7905 24.2 -24 315228.0vGLOB CLUSCNGC 1904 D 2 STM79
M 8016 17.1 -23 005347.2vGLOB CLUSCNGC 6093 D 2 STM80
M 8109 55.7 +69 0415426.9 GALAXY Sb I-IICNGC 3031 C 5 STM81 25.7x14.1 Near M82
M 8209 55.9 +69 416728.4 GALAXY P EDGE-ONUGC 5322 C 5 STM82 11.2x4.6 Exploding
M 8313 37.1 -29 516728.2 GALAXY Sc I-II FACE-ONCNGC 5236 B 5 STM83 11.2x10.2
M 8412 25.1 +12 533009.3 GALAXY E1UGC 7494 C 5 STM84 5.0x4.4 Near M86
M 8512 25.5 +18 114269.2 GALAXY Ep 2-SYSUGC 7508 C A STM85 7.1x5.2
M 8612 26.3 +12 564449.2 GALAXY E3UGC 7532 C 5 STM86 7.4x5.5
M 8712 30.9 +12 234328.6 GALAXY E1 + E0 2-SYSUGC 7654 D A ST M87 7.2x6.8 + CNGC 4471
M 8812 32.1 +14 254149.5 GALAXY Sb+ I MULTI-ARM UGC 7675 D 5 STM88 6.9x3.9
M 8912 35.7 +12 332529.8 GALAXY E0UGC 7760 D 5 STM89 4.2x4.2
M 9012 36.9 +13 095709.5 GALAXY Sb+UGC 7786 C 5 STM90 9.5x4.7
M 9112 35.5 +14 2932410.2 GALAXY SBb + Sc 2-SYSUGC 7753 D A STM91 5.4x4.4 Near CNGC 4571
M 9217 17.2 +43 096726.5vGLOB CLUS sp=F1CNGC 6341 D 2 STM92 X-Ray Source 26kly
M 9307 44.6 -23 5213206.2vOPEN CLUS + DNEBCNGC 2447 D 6 STM93 Includes dark nebula
M 9412 50.9 +41 086608.2 GALAXY Sb-p II:UGC 7996 C 5 STM94 11.0x9.1
M 9510 43.9 +11 424449.7 GALAXY S(B)b IIUGC 5850 C 5 STM95 7.4x5.1 Near M96
M 9610 46.7 +11 494269.2 GALAXY SbpUGC 5882 C 5 STM96 7.1x5.1 Near M95
M 9711 14.8 +55 0219412.0pPLAN NEBCNGC 3587 C 4 STM97 Owl Nebula 12kly
M 9812 13.9 +14 5457010.1 GALAXY Sb I-II: 3-SYSUGC 7231 D A ST M98 9.5x3.2
M 9912 18.9 +14 253249.8 GALAXY Sc
I NEAR FACE-ON
UGC 7345 D 5 STM99 5.4x4.8
M10012 23.0 +15 494149.4 GALAXY Sc I FACE-ONUGC 7450 D 5 STM100 6.9x6.2 Brite Nucleus
M10114 03.3 +54 2116147.7 GALAXY Sc I FACE-ONUGC 8981 C 5 S M101 26.9x26.3 Pinwheel
M10215 06.5 +55 4531210.0 GALAXY E6p 2-SYSUGC 9723 D A ST M102 5.2x2.3
M10301 33.3 +60 433607.4vOPEN CLUSCNGC 0581 D 1 STM103
M10412 39.9 -11 385348.3 GALAXY Sb-CNGC 4594 C 5 STM104 8.9x4.1 “Sombrero”
APPENDIX D: PERSONAL COMPUTER (PC) CONTROL OF THE #1697 CDS
Remote operation of a computerized telescope has only been a fanciful dream for most amateur
astronomers. The realization of fully controlling a telescope through a personal computer has previously
been a staggering proposition involving high monetary cost and expert knowledge of software and hardware.
To realize this dream, the Meade #1697 Computer Drive System's internal software
supports a RS-232 interface, allowing observers to utilize a PC and software such as
Meade EPOCH 2000sk (see Optional Accessories, page, 18), other after-market
software, or a user's own custom software to control a compatible telescope.
The following sections are devoted to those interested in developing their own
software to remotely control every feature of the CDS.
An RS-232 cable is required for serial communication between the CDS and a PC. It
is possible to either purchase an RS-232 cable from your local Meade dealer, or
construct your own cable. Following is a schematic for constructing your own RS-232 cable, a program to
test the RS-232 communication line called CDS TEST, the CDS Command Set, and CDS DEMO, which is
a program that you can enter into your computer to access the Object Library, slew to the object, and center
the image. The CDS TEST and CDS DEMO programs require a serial communication program, such as
Procomm*, to communicate with a PC.
Fig. 14: EPOCH 2000sk.
1. RS-232 Cable
The input hardware uses a standard 6 line telephone jack
connector, preattached to a 6 conductor flat line telephone
style cable (of any length, up to 100' and perhaps even more,
depending on the gauge of the cable). You will also need
either a 9-pin or 25-pin RS-232 connector, whichever your
computer uses for the serial port. All of the above items are
available at most electronics hardware stores.
Fig. 15 shows the CDS pinouts for the 6 line telephone
connector. The table below shows standard IBM compatible
DB-9 and DB-25 serial port pin outs, and how they should be
connected to the CDS 6 line modular connector. Note: Only
3 wires are required.
#1+12 VOLTS DCNOT USEDNOT USED
#2MISC. SERIAL OUTNOT USEDNOT USED
* Procomm is a product of Datastorm Industries.
**The DB-9 and DB-25 serial port pin out numbering code is representative of a widely used standard format.
Consult your computer’s instruction manual for your computer's format.
#3PC TRANSMIT DATA#3#2
#4GROUND#5#7
#5PC RECEIVE DATA#2#3
#6MISC. SERIAL INNOT USEDNOT USED
- 37 -
2. CDS Test Program
Once you have the RS-232 cable constructed, you will want to test the cable. Below is a simple program
called "CDS TEST” that is written in GW Basic programming language and will work with virtually any IBM
compatible computer. CDS Test is an effective program to fully check the RS-232 line communications from
your personal computer to the CDS, allowing you to concentrate on de-bugging your RS-232 cable.
To enter the following program, first load BASIC or GWBASIC (which ever your computer system uses), then
type in the following program. When complete, be sure to save the program as “CDSTST.BAS.”
10 CLS
20 DEFINT A-X
30 OPEN "COM1:9600,N,8,1,CD0,CS0,DS0,RS," FOR RANDOM AS #1
50 key1$ = INKEY$: IF key1$ = "" THEN GOTO 50
60 REM KEY1S
70 IF key1$ = CHR$(119) THEN GOSUB 200: REM "w" key
80 IF key1$ = CHR$(101) THEN GOSUB 200: REM "e" key
90 IF key1$ = CHR$(110) THEN GOSUB 200: REM "n" key
100 IF key1$ = CHR$(115) THEN GOSUB 200: REM "s" key
105 IF key1$ = "x" THEN END: REM To exit test.
110 GOTO 50
120 END
200 REM directions
210 REM west
220 IF key1$ = "w" THEN a$ = "#:Mw#": PRINT #1, a$: REM GO west
230 REM east
240 IF key1$ = "e" THEN a$ = "#:Me#": PRINT #1, a$: REM GO east
250 REM north
260 IF key1$ = "n" THEN a$ = "#:Mn#": PRINT #1, a$: REM GO north
270 REM south:
280 IF key1$ = "s" THEN a$ = "#:Ms#": PRINT #1, a$: REM GO south
290 key1$ = INKEY$:
300 IF key1$ = CHR$(32) THEN GOTO 400 ELSE GOTO 200
400 REM This stops motion (by hitting SPACE bar).
410 B$ = "#:Qe#": PRINT #1, B$
420 B$ = "#:Qw#": PRINT #1, B$
430 B$ = "#:Qn#": PRINT #1, B$
440 B$ = "#:Qs#": PRINT #1, B$
450 RETURN
460 END
To use the above program, connect the completed cable to your PC serial port and to the CDS RS-232 Port.
Load BASIC (or GWBASIC), if not already loaded, and run “CDSTST.BAS.” Nothing will appear on the
computer screen. Press any one of the N, S, E, or W (lower case) keys on your PC keyboard, this will move
the LXD mount North, South, East, or West respectively. Press the space bar on the PC keyboard to stop.
Press X to exit the program.
If the LXD mount does not respond to the N, S, E, or W keys, be sure the CAPSLOCK is OFF. If it still does
not work, check the PC serial port pinouts for your computer to be sure they are wired correctly to the CDS
6 line connector.
With a successful check-out of the PC link with the CDS using “TEST”, you are now ready to write your own
software program using the CDS Command Set, or to use the sample program called “DEMO” that is written
in Quick Basic software language.
- 38 -
3. CDS Command Set
Intended for professional programmers, the CDS Command Set is used to write custom software for remote
operation of the telescope with a PC. Each command is listed in a section appropriate to its type. Each
entry in the command list includes the command name, any parameters, any return values, and a
description. The parameters and the return data are shown in a manner that indicates their format. These
formats are listed below along with examples of how the data might really appear, the legal range of values,
and a short description. Below is a detailed description:
a. Command Set Formats
HH:MM.TExample: 05:47.4
Range: 00:00.0 - 23:59.9
Hours, minutes, and tenths of minutes.
sDD*MMExample: +45*59
Range: -90*00 - +90*00
Signed degrees and minutes (the '*' represents ASCII 223 which appears on the handbox as a
degree symbol).
DDD*MMExample: 254*09
Range: 000*00 - 359*59
Unsigned degrees and minutes.
HH:MM:SS Example: 13:15:36
Range: 00:00:00 - 23:59:59
Hours, minutes, and seconds.
MM/DD/YY Example: 02/06/92
Range: 01/01/00 - 12/31/99 (see description)
Month, day, and year.
The two digit year indicates the following: 92 through 99 = 1992 through 1999
sHHExample: -5
Range: -24 - +24
Signed hour offset.
NNNN Example: 3456
Range: 0000 - 9999
Four digit object number.
sMM.M Example: -02.4
Range: -05.5 - 20.0
Signed magnitude value.
NNNExample: 134
Range: 000 - 200
Three digit object size (minutes).
00 through 91 = 2000 through 2091
DD*Example: 56*
Range: 00* - 90*
Higher' parameter (degrees).
TT.TExample: 59.2
Range: 56.4 - 60.1
Tracking 'frequency'. info
Example: CNGC1976 SU DNEB MAG 3.9 SZ 66.0'
Range: n/a
Object information.
Ok Example: 1
Range: 0 or 1
Status value returned after setting values.
If the value is legal 1 is returned, otherwise 0 is returned.
b. General Telescope Information
Command ACK (ASCII 6)
Returns A, L, P, or G
Gets alignment status, A for alt-az, L for land, P for polar, G for German mount polar.
Command :GR#
Returns +HH:MM.T#
Gets the current Right Ascension.
Command :GD#
Returns sDD*MM#
Gets the current declination.
- 39 -
Command :GA#
Returns sDD*MM#
Gets the current altitude.
Command :GZ#
Returns DDD*MM#
Gets the current azimuth.
Command :GS#
Returns HH:MM:SS#
Gets the current sidereal time.
Command :SS HH:MM:SS#
Returns Ok
Sets the sidereal time.
Command :GL# :Ga#
Returns HH:MM:SS#
Gets the local time either in 24 hour (GL) or 12 hour (Ga) format.
Command :SL HH:MM:SS#
Returns Ok
Sets the local time.
NOTE: The parameter should always be in 24 hour format.
Command :GC#
Returns MM/DD/YY#
Gets the calendar date.
Command :SC MM/DD/YY#
Returns Ok (see description)
Sets the calendar date.
NOTE: After the Ok, if the date is valid, two strings will be sent. The first will contain the message
“Updating planetary data,” the second (sent after the planetary calculations) will contain only blanks.
Both strings will be terminated by the '#' symbol.
Command :Gt#
Returns sDD*MM#
Gets the latitude of the currently selected site.
Command :St sDD*MM#
Returns Ok
Sets the latitude of the currently selected site.
Command :Gg#
Returns DDD*MM#
Gets the longitude of the currently selected site.
Command :Sg DDD*MM#
Returns Ok
Sets the longitude of the currently selected site.
Command :GG#
Returns sHH#
Gets the offset from Greenwich Mean Time.
Command :SG sHH#
Returns Ok
Sets the offset from Greenwich Mean Time.
- 40 -
Command :W1# :W2# :W3# :W4#
Returns Nothing
Sets the current site number.
c. Telescope Motion
Command :Mn# :Ms# :Me# :Mw#
Returns Nothing
Starts motion in the specified direction at the current rate.
Command :MS#
Returns 0, 1, 2, or 3 (see description)
Slews telescope to current object coordinates. 0 is returned if the telescope can complete the slew,
1 is returned if the object is below the horizon, and 2 is returned if the object is below the ‘higher’
limit. If 1 or 2 is returned, a string containing an appropriate message is also returned. If 3 is
returned, the telescope can hit the tripod.
Command :Qn# :Qs# :Qe# :Qw#
Returns Nothing
Stops motion in the specified direction. Also stops the telescope if a slew to object is in progress.
Command :Q#
Returns Nothing
Stops a slew to an object.
Command :RG# :RC# :RM# :RS#
Returns Nothing
Sets the motion rate to guide (RG), center (RC), find (RM), or slew (RS).
d. Library/Objects
Command :Gr#
Returns HH:MM.T#
Gets object Right Ascension.
Command :Sr HH:MM.T#
Returns Ok
Sets object Right Ascension.
Command :Gd#
Returns sDD*MM#
Gets object Declination.
Command :Sd sDD*MM#
Returns Ok
Sets object Declination.
Command :CM#
Returns (see description)
Sync. Matches current telescope coordinates to the object coordinates and sends a string indicating
which object’s coordinates were used.
Command :Gy#
Returns GPDCO#
Gets the 'type' string for the FIND operation. A capital letter means that the corresponding type is
selected while a lower case letter indicates it is not.
Command :Sy GPDCO#
Returns Ok
Sets the 'type' string for the FIND operation.
- 41 -
Command :Gq#
Returns SU#, EX#, VG#, GD#, FR#, PR#, or VP#
Gets the current minimum quality for the FIND operation
Command :Sq#
Returns Nothing
Steps to the next minimum quality for the FIND operation.
Command :Gh#
Returns DD*#
Gets the current 'higher' limit.
Command :Sh DD#
Returns Ok
Sets the current 'higher' limit.
Command :Gb# :Gf#
Returns sMM.M#
Gets the brighter (Gb) or fainter (Gf) magnitude limit for the FIND operation.
Command :Sb sMM.M# :Sf sMM.M#
Returns Ok
Sets the brighter (Gb) or fainter (Gf) magnitude limit for the FIND operation.
Command :Gl# :Gs#
Returns NNN'#
Gets the larger (Gl) or smaller (Gs) size limit for the FIND operation.
Command :Sl NNN# :Ss NNN#
Returns Ok
Sets the larger (Gl) or smaller (Gs) size limit for the FIND operation.
Command :GF#
Returns NNN'#
Gets the field radius of the FIELD operation.
Command :SF NNN#
Returns Ok
Sets the field radius of the FIELD operation.
Command :LF#
Returns Nothing
Starts a FIND operation.
Command :LN#
Returns Nothing
Finds the next object in a FIND sequence.
Command :LB#
Returns Nothing
Finds the previous object in a FIND sequence.
- 42 -
Command :Lf#
Returns (see description)
Performs a FIELD operation returning a string containing the number of objects in the field and the
object that is closest to the center of the field.
Command :LC NNNN# :LM NNNN# :LS NNNN#
Returns Nothing
Sets the object to the CNGC (LC), Messier (LM), or Star (LS) specified by the number. Planets are
'stars' 901-909.
Command :LI#
Returns Object Information
Gets the current object information.
e. Miscellaneous
Command :B+# :B-# :B0# :B1# :B2# :B3#
Returns Nothing
Increases (B+) or decreases (B-) reticle brightness, or sets to one of the flashing modes (B0, B1,
B2, or B3).
Command :F+# :F-# :FQ# :FF# :FS#
Returns Nothing
Starts focus out (F+), starts focus in (F-), stops focus change (FQ), sets focus fast (FF), or
Command :GM# :GN# :GO# :GP#
Returns XYZ#
Gets site name (XYZ). M through P correspond to 1 through 4.
Command :SM XYZ# :SN XYZ# :SO XYZ# :SP XYZ#
Returns Ok
Sets site name.
Command :GT#
Returns TT.T#
Gets the current track 'frequency'.
Command :ST TT.T#
Returns Ok
Sets the current track 'frequency'.
Command :TM# :TQ# :T+# :T-#
Returns Nothing
Switch to manual (TM) or quartz (TM). Increment (T+) or decrement (T-) manual frequency by one
tenth.
Command :Gc#
Returns (12) or (24)
Get 12/24 hour status of clock.
Command :H#
Returns Nothing
Toggle 12/24 hour mode.
Command :P#
- 43 -
Returns“HIGH PRECISION” when ON
“LOW PRECISION” when OFF
Toggles the High Precision Mode ON or OFF.
Command :U#
Returns Nothing
Toggles the long format ON or OFF.
When the long format is active, whenever a request to send or receive position data, the following
format is used:
HH:MM:SS
Example: 05:47:45
Range: 00:00.0 - 23:59:59
Hours, minutes, and seconds.
sDD*MM:SS
Example: +45*59:45
Range: -90*00 - +90*00
Signed degrees, minutes, and seconds (the '*' represents ASCII 223 which appears on
the handbox as a degree symbol).
DDD*MM:SS
Example: 254*09:45
Range: 000*00 - 359*59:59
Unsigned degrees, minutes, and seconds.
Command :Lo N#
Returns Ok
Sets the NGC object library type. 0 is the NGC library, 1 is the IC library, and 2 is the UGC library.
This operation is successful only if the user has a version of the software that includes the desired
library.
- 44 -
Command :Ls N#
Returns Ok
Sets the STAR object library type. 0 is the STAR library, 1 is the SAO library, and 2 is the GCVS
library. This operation is successful only if the user has a version of the software that includes the
desired library.
f. Keypad Hand Controller Specific
Command:D#
Returns (see description)
Gets the distance ‘bars’ string.
Command: $Q (1-5)#
Returns Nothing
Toggles Smart Drive status.
Command: ?#
Command : ?+#
Command: ?-#
Returns Page of Help Information
Starts (??) or moves through (?+ or ?-) Help.
Command: G0#
Command: G1#
Command: G2#
Returns Alignment Menu Entry
Used to implement alignment menu.
4. CDS Demo Program
The RS-232 interface communicates with your computer at 9600 Baud Rate, Parity = None, 8 Data Bits, 1
Stop Bits. For those who are familiar with programming, the CDS Command Set is written in ASCII
character format and can be used to write your own programs.
The CDS Demo Program is written in Quick Basic and is intended to demonstrate how commands can be
sent to the telescope and information received from the telescope. It is not a “polished” program and does
not incorporate all of the RS-232 features available.
The program is set-up to operate on serial port 2 (COM2:). To operate on serial port 1 (COM1:) line 4 should
be changed from “COM2:” to “COM1:”. The program is as follows:
Please note that Meade Instruments does not support these programs, or programs that you may write in
any way. For questions relating to after-market software programs, refer back to those manufacturers.
- 45 -
CLS
DEFINT A-X
counter = 0
OPEN "COM1:9600,N,8,1,CD0,CS0,DS0,OP0,RS,TB2048,RB2048" FOR RANDOM AS #1 hourform$ = "low "
KEY ON
KEY(1) ON
KEY(2) ON
KEY(3) ON
KEY(4) ON
KEY(5) ON
KEY(6) ON
KEY(7) ON
KEY(8) ON
KEY(9) ON
KEY(10) ON
KEY(11) ON
KEY(12) ON
KEY(13) ON
KEY(14) ON
KEY 1, "GO TO":
ON KEY(1) GOSUB key1
KEY 2, " SYNC"
ON KEY(2) GOSUB KEY2
KEY 3, " SLEW"
ON KEY(3) GOSUB key3
KEY 4, " FIND"
ON KEY(4) GOSUB KEY4
KEY 5, " CNTR"
ON KEY(5) GOSUB KEY5
KEY 6, "GUIDE"
ON KEY(6) GOSUB KEY6
KEY 7, " H.P."
ON KEY(7) GOSUB key7
KEY 8, "FORMAT"
ON KEY(8) GOSUB key8
KEY 9, " PREV"
ON KEY(9) GOSUB key9
KEY 10, " NEXT"
ON KEY(10) GOSUB key10
ON KEY(11) GOSUB key11
ON KEY(12) GOSUB key12
ON KEY(13) GOSUB key13
ON KEY(14) GOSUB key14
GOSUB statis
GOSUB key3: REM puts maker over key3
GOSUB help
20 GOSUB telpos
50 key$ = INKEY$: IF key$ = "" THEN GOTO 20
REM KEYS
GOTO 20
END
PRINT #1, "#:LI#": info$ = INPUT$(33, 1): REM LOCATE 10, 20: PRINT info$;
GOSUB obdraw
GOSUB TIME
IF key$ = CHR$(119) THEN GOSUB senddir: REM a$ = "#:Mw#"
IF key$ = CHR$(101) THEN GOSUB senddir: REM a$ = "#:Me#"
IF key$ = CHR$(110) THEN GOSUB senddir: REM a$ = "#:Mn#"
IF key$ = CHR$(115) THEN GOSUB senddir: REM a$ = "#:Ms#"
IF key$ = "m" THEN GOSUB objects
IF key$ = "t" THEN GOSUB objects
IF key$ = "c" THEN GOSUB objects
IF key$ = "p" THEN GOSUB objects
IF key$ = "q" THEN GOSUB objects
IF key$ = "x" THEN CLS : END
IF key$ = "r" THEN RUN
senddir:
west:
IF key$ = "w" THEN a$ = "#:Mw#": PRINT #1, a$: REM GOTO west
east:
IF key$ = "e" THEN a$ = "#:Me#": PRINT #1, a$: REM GOTO east
north:
IF key$ = "n" THEN a$ = "#:Mn#": PRINT #1, a$: REM GOTO north
south:
IF key$ = "s" THEN a$ = "#:Ms#": PRINT #1, a$: REM GOTO south
GOSUB telpos
key$ = INKEY$:
IF key$ = CHR$(32) THEN GOTO end1 ELSE GOTO senddir
counter = 1
LOCATE 6, 31: PRINT " O B J E C T I N F O R M A T I O N";
LOCATE 7, 31: PRINT "Object: "; LEFT$(info$, 9);
LOCATE 8, 31: PRINT "Rating: "; MID$(info$, 10, 7);
LOCATE 9, 31: PRINT "Magnitude: "; MID$(info$, 20, 5);
LOCATE 10, 31: PRINT "Size: "; MID$(info$, 27, 6);
IF counter = 0 THEN LOCATE 11, 31: PRINT "RA :"; : LOCATE 12, 31: PRINT "DEC:"; :
FOR i = 1 TO 16
IF ASC(MID$(d$, i, 1)) = 255 THEN rad$ = rad$ + CHR$(254)
NEXT i
FOR i = 17 TO 33
IF ASC(MID$(d$, i, 1)) = 255 THEN decd$ = decd$ + CHR$(254)
NEXT i
REM LOCATE BOXSTX, BOXSTY:
REM BOX$ = CHR$(201)
REM FOR I = 1 TO BOXWIDE: BOX$ = BOX$ + CHR$(205): NEXT
REM PRINT BOX$;
help:
key$ = "n"
GOSUB north
RETURN
key$ = "w"
GOSUB west
RETURN
key$ = "e"
GOSUB east
RETURN
key$ = "s"
GOSUB south
RETURN
RETURN
LOCATE 14, 10: PRINT "E W N S keys move telescope. SPACE BAR stops.";
LOCATE 15, 10: PRINT "M key to enter Messier object.";
LOCATE 16, 10: PRINT "T key to enter sTar.";
LOCATE 17, 10: PRINT "P key to enter Planet (900 + orbit #).";
LOCATE 18, 10: PRINT "C key to enter Cngc object.";
LOCATE 19, 10: PRINT "Q key to enter Planet (900 + orbit #).";
LOCATE 20, 10: PRINT "X to End program.";
END
RETURN
- 50 -
APPENDIX E: CARE AND MAINTENANCE OF THE CDS
1. Keeping Your Components Clean
Prevention is the best recommendation that a telescope owner can follow in keeping astronomical
equipment in top working order. Proper measures taken during observations and when storing the
equipment between observation runs can ensure many years of trouble free use.
Dust and moisture are the two main enemies to your telescope and electronics. If you live in a very moist
climate, you may find it necessary to use a silica dessicant stored with the telescope and electronics to ward
off moisture and the possibility of corrosion growing on the metal contacts of the electronics. Replace the
silica dessicant as often as necessary. All of the metal surfaces should be cleaned routinely with a soft rag
and alcohol to prevent corrosion.
Those living in coastal areas or tropic zones should also cover the electronic ports on the Control Panel and
Keypad with gaffers tape to reduce corrosion on the metal contacts. Apply a dab of water displacement
solution (such as WD-40) with a small brush on all of the interior metal contacts and the input cord metal
contacts. The Keypad and all separate accessories should be kept in sealable bags with silica dessicant.
2. Behind the Power Panel
The CDS Control Panel houses the back-up replaceable
clock/ calendar battery and a replaceable standard 1.0
amp slow blow fuse. The long-life lithium battery
(Panasonic CR2032 3 volt or Duracell DL2032B) is
stored behind the front panel of the CDS. The battery
should be replaced whenever the CDS begins to lose
time. The 1 amp slow blow fuse will fail in the event that
the telescope is prevented from completing a GO TO
function (e.g. the tube runs into something that keeps it
from slewing).
To replace either the battery or the fuse, first remove the
CDS PCB assembly from the Declination casting by
removing the four screws and unplugging the 16-pin
ribbon cable. With a thin flat-headed screwdriver, lift the
small coin-sized battery out of its’ holder. The new
battery slides back in place.
The fuse can be removed with the aid of a small screwdriver. Loosening the two upper screws on the front
side of the power panel will provide more clearance to replace the fuse if needed.
Fig. 16. CDS PCD. (1) 16-Pin Ribbon Cable.
1
NOTICE
This equipment has been tested and found to comply with the limits for a CLASS B digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions contained in this manual, may
cause harmful interference to radio and television communications. However, there is no guarantee that
interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio of television reception, which can be determined
by turning the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and the receiver.
•Connect the equipment into an outlet on a circuit different from that of the receiver.
•Consult the dealer or an experienced audio television technician.
NOTE: Connecting this device to peripheral devices that do not comply with CLASS B requirements or
using an unshielded peripheral data cable could also result in harmful interference to radio or television
reception.
The user is cautioned that any changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate this equipment.
To ensure that the use of this product does not contribute to interference, it is necessary to use shielded
I/O cables
Meade Instruments Corporation
World’s leading manufacturer of astronomical telescopes for the serious amateur.
6001 Oak Canyon, Irvine, California 92620-4205■(949) 451-1450
■
Fax: (949) 451-1460
www.meade.com
Ver. 0698Part Number 14-0205-00
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