Celestron 21035 Travel Scope 70, 21038 Travel Scope 50 Instruction Manual
Travel Scope
Travel Scope
Instruction Man ual
Instruction Man ual
Mod el # 21035 T ravel Sc ope 7 0
Mod el # 210 35 Tr av el Sc ope 70
Mod el # 210 38 Tr av el Sc ope 50
Mod el # 210 38 Tr av el Sc ope 50
ENGLISH
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Table of Contents
INTRODUCTION ......................................................................................................................3!
ASSEMBLY...............................................................................................................................5!
Setting up the Tripod...............................................................................................................5!
Attaching the Telescope Optical Tube to the Tripod................................................................6!
Moving the Travel Scope Manually.........................................................................................6!
Installing the Diagonal & Eyepiece .........................................................................................7!
Installing the Finderscope – Travel Scope 70 only...................................................................7!
Aligning the Finderscope ........................................................................................................7!
TELESCOPE BASICS................................................................................................................8!
Focusing .................................................................................................................................8!
Calculating Magnification.......................................................................................................8!
Installing & Using the Barlow Lens ........................................................................................8!
Determining Field of View......................................................................................................9!
General Observing Hints .........................................................................................................9!
ASTRONOMY BASICS...........................................................................................................10!
The Celestial Coordinate System...........................................................................................10!
Motion of the Stars................................................................................................................11!
CELESTIAL OBSERVING......................................................................................................12!
Observing the Moon..............................................................................................................12!
Observing the Planets............................................................................................................12!
Observing the Sun.................................................................................................................12!
Observing Deep-Sky Objects ................................................................................................13!
Seeing Conditions .................................................................................................................15!
TELESCOPE MAINTENANCE...............................................................................................16!
Care and Cleaning of the Optics ............................................................................................16!
TECHNICAL SPECIFICATIONS ……………………………………………………………...17
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Congratulations on your purchase of a Celestron Travel Scope. The Travel Scope is made of the highest quality
materials to ensure stability and durability. All this adds up to a telescope that gives you a lifetime of pleasure with
a minimal amount of maintenance.
This telescope was designed with traveling in mind offering exceptional value. The Travel Scope features a compact
and portable design with ample optical performance. Your Travel Scope is ideal for terrestrial as well as very casual
astronomical observation.
The Travel Scope carries a two year limited warranty. For details see our website at www.celestron.com
Some of the standard features of the Travel Scope include:
• Coated glass optical elements for clear, crisp images.
• Erect image diagonal so that your views are correctly oriented.
• Smooth functioning altazimuth mount with easy pointing to located objects.
• Preassembled aluminum full size photographic tripod ensures a stable platform.
• Quick and easy no-tool set up.
• The telescope and tripod fit inside the standard backpack for easy traveling.
Take time to read through this manual before embarking on your journey through the Universe. It may take a few
observing sessions to become familiar with your telescope, so you should keep this manual handy until you have
fully mastered your telescope’s operation. The manual gives detailed information regarding each step as well as
needed reference material and helpful hints to make your observing experience simple and pleasurable as possible.
Your telescope is designed to give you years of fun and rewarding observations. However, there are a few things to
consider before using your telescope that will ensure your safety and protect your equipment.
Warning
• Never look directly at the sun with the naked eye or with a telescope (unless you have the
proper solar filter). Permanent and irreversible eye damage may result.
• Never use your telescope to project an image of the sun onto any surface. Internal heat build-
up can damage the telescope and any accessories attached to it.
• Never use an eyepiece solar filter or a Herschel wedge. Internal heat build-up inside the
telescope can cause these devices to crack or break, allowing unfiltered sunlight to pass
through to the eye.
• Do not leave the telescope unsupervised, either when children are present or adults who may
not be familiar with the correct operating procedures of your telescope.
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Figure 1-1 Travel Scope 70 (Travel Scope 50 similar)
1.
Objective Lens
7.
Pan Handle – Altitude Motion
2.
Telescope Optical Tube
8.
Tripod
3.
Finderscope Bracket
9.
Central Column Locking Knob
4.
Erect Image Diagonal
10.
Azimuth Locking Knob
5.
Eyepiece
11.
Tripod Head Platform
6.
Focus Knob
1
2
11
10
9
3
4
5
6
8
7
5
This section covers the assembly instructions for your Travel Scope. Your
telescope should be set up indoor the first time so that it is easy to identify
the various parts and familiarize yourself with the correct assembly
procedure before attempting it outdoor.
The Travel Scope 70 comes in one box. The pieces in the box are –
telescope optical tube, tripod, erect image diagonal, 20mm eyepiece, 10mm
eyepiece, 5x24 Finderscope with bracket, CD-ROM ----- all packed in the
travel backpack.
The Travel Scope 50 comes in one box. All items the same as above except it has a 2x20 Finderscope and 8mm
eyepiece (instead of 10mm). In addition, the Travel Scope 50 includes a 3x Barlow Lens – 1.25”.
Set tin g u p the T ri pod
Set tin g u p the T ri pod
1. The tripod comes preassembled so that the set up is very easy – see
Figure 2-2. Figure 2-2
2. Stand the tripod upright and pull the tripod legs outward until each leg is fully extended – Figure 2-3.
3. You can raise the tripod legs to the height you desire. At the lowest level the height is about 16” (41cm)
and extends to about 49” (125cm).
4. To raise the height of the tripod, you unlock the tripod leg lock clamps at the bottom of each tripod leg
(Figure 2-4) by opening the clamp for each section by pulling outward. Once a clamp is unlocked, then
pull the tripod leg out as far as it will go and then close the leg lock to secure it. Continue doing this for
each tripod leg and each section to raise the height to the level you desire. A fully extended tripod looks
similar to the image in Figure 2-5. With all the legs raised up on all sections, the height will be about 42”
(107cm).
5. If you want to raise the tripod height up further you must use the central column locking knob which is the
knob located at the bottom left in Figure 2-6. Turn the locking knob counterclockwise until loose. Then,
pull up on the head of the tripod and the central column will move up. Continue pulling to the height you
desire and then tighten the locking knob. When the central column is raised up as far as it will go, then the
maximum height possible is achieved – 49” (125cm).
Figure 2-3 Figure 2-4 Figure 2-5 Figure 2-6
Figure 2-1
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Att achin g t he Te les co pe Op ti cal Tu be t o t he Tri po d
Att achin g t he Te les co pe Op ti cal Tu be t o t he Tri po d
The telescope optical tube attaches to the tripod by using the mounting bracket on the bottom of the optical tube
(Figure 2-7 shows the Travel Scope 70; and the Travel Scope 50 is similar) and the mounting platform of the tripod
(Figure 2-8). Before starting make sure all of the knobs on the tripod are locked.
Figure 2-7 Figure 2-8
1. Remove the protective paper covering the optical tube.
2. Loosen the top right knob (see Figure 2-8) by turning it counterclockwise. This allows you to tilt the tripod
platform up 90° as shown in Figure 2-9. After tilting the platform up, tighten the knob to secure it in place.
3. Figure 2-10 shows the bottom of the optical tube and the tripod platform and where they will attach to each
other.
4. Under the center of the tripod platform you will see (Figure 2-10) a knob which contains a ¼ x 20 screw
that will attach securely the platform to the telescope optical tube.
5. You can put the ¼ x 20 screw into either of the threaded holes of the Travel Scope 70 (it doesn’t matter
which one you use) in the mounting bracket of the telescope optical tube whereas the Travel Scope 50 has
only one threaded hole. Hold the optical tube with one hand while threading the screw clockwise until tight
with the other hand. Now the assembly will look like Figure 2-11.
6. Lastly, loosen the knob for the tripod platform and lower the platform down to the level position and then
tighten the knob securely.
Figure 2-9 Figure 2-10 Figure 2-11
Movi ng the Tr avel Sco pe
Movi ng the Tr avel Sco pe
Manu al ly
Manu al ly
The Travel Scope is easy to move wherever you want to point it. The up and down (altitude) is controlled by the
Pan Handle (Figure 1-1) Control Knob. The side-to-side (azimuth) is controlled by the Azimuth Locking Knob (top
left knob in Figure 2-8). Both knobs are loosened when turned counterclockwise and tightened when turned
clockwise. When both knobs are loose you can find your objects easily (through the Finderscope which is discussed
shortly) and then lock the controls.
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