Spotting
Scope
Instruction Manu al
2
A
. Telescope Tube
B. Dew Shield
C. Eyepiece
D. Diagonal Mirror
E. Focuser
F. Mount Lock Knob
G. Aiming Control and Lock
H. Tripod Legs
I. Horizontal Motion Lock
Here are the Main Parts of Your
orbitor OR7030
WARNING!
Do not a im your t ele s cope at t he su n , or a nywh ere ne ar
the sun! Instant and irreversible damage can occur,
including blindness!
Do not let children use any telescope without adult
sup
ervisi on at a ny time the sun is above t he horizon.
A
B
C
D
F
E
G
H
I
3
I
ntroduction
Congratulations on purchasing your new tel
e-
scope. We hope it will give you many years
of enjoyment as it opens your eyes to some
of Nature’s most wondrous sights.
Please read this manual carefully and co
m-
pletely. It contains the information you need
to know to obtain the best results from your
telescope.
If you quickly passed ove
r the sun warning on
the previous page, please go back and read it
now.
If at any time you need assistance in asse
m-
bling or operating your telescope you may
contact us by mail, e
-
mail, fax or phone. The
addresses and numbers are given later in
this
manual on the warranty page.
Good Luck with your new hobby, and may all
your skies be clear!
CONTENTS
Telescope Parts . . . . . . . . 2
Sun Warning . . . . . . . . . . . 2
Introduction . . . . . . . . . . . . 3
As
sembly . . . . . . . . . . . . . .4
Using Your Telescope . . . . 4
Astronomical Use . . . . . . . .5
Terrestrial Use . . . .
. . . . . . 5
Care & Cleaning of Optics .6
What to Look For . . . . . . . . 7
4
Assembly:
Remove all of the pieces from the box and lay them out so you can clearly see them.
Check that you have all parts. Keep the box for storage, or if you ever need to return
the telescope for serv i ce.
1) Gently pull the aluminum tripod legs apart as
far as they will go until the center leg braces sit
flat, in a horizontal position.
2)The telescope tube has a mounting tab (1) on its
underside. Place this tab into the slot on top of the
tripod.
3) Tighten the knurled knob (2) on the tripod head
to hold the tube tightly to the tripod.
4) Screw the aiming control arm into the threaded
socket at the rear of the mount.
4) Insert the diagonal mirror into the end of the
telescope tube.
5) Insert the 25mm eyepiece (25mm is marked on the eyepiece) into the diagonal
mirror.
6) Remove the dust cap from the large end of the telescope.
Using Your Telescope
1) Take your telescope outside. Do not try and use it by aiming through a window. If
the window is closed the window glass will introduce reflections and distortions. If the
window is open the moving air currents of different temperatures will cause
distortions.
2)Let your telescope adjust to the outside temperature. Your telescope will perform
much better if the lenses and the air inside the tube are all the same temperature as
the outside air. This process may take up to 1/2 hour i f the te mp erature difference
between inside and outside is extreme.
3) Try to find a location that is away from glaring lights. If you are in a large town or
city you may want to try and find a location in the country. Using a telescope in the
skyglow of a town or city can cut its ability by half.
1
2
3
5
Astronomical Use:
1) Always start viewing with your 25mm. eyepiece. This is your low power eyepiece
and its wide viewing field will make it easier to locate objects. By the way, you will
notice that stars, when seen through your telescope, still look like points of light. This
is because they are so far away. Even the largest telescopes show stars only as
bright points.
2) Once you have located an object and the view is clear you may wish to change to
the high power eyepiece. You will notice that your object looks bigger, but not as
bright as seen with the 25mm. eyepiece. This is normal. If the viewing conditions are
not good the high power image may not appear sharp or stable. If this happens,
switch back to the 25mm. eyepiece and try the high power eyepiece another night.
You can also achieve higher power by inserting the 3X Barlow lens between the
telescope and either eyepiece. This triples the available power.
Care and Cleaning of Optics
Warning: Improper cleaning of optical components may void the warranty.
Optical components of a telescope will over time get dirty. The amount of dirt and or
dust collected onto a lens or mirror should only be removed with the utmost care
and this is at times best left to people with experience in this procedure. A
considerable amount of dirt or dust must be present on the optical sur f ace be f ore
one will notice the effect visually.
1. Keeping the dust caps on during storage of the telescope will reduce the
amount of dust collected.
2 After using the telescope there might be dew condensation, on the optical
surfaces. When the telescope is brought inside remove the dust caps and al
low the moisture to evaporate naturally. Point the telescope downwards so as
to minimize the collection of airborne dust.
3. Once the moisture is gone then replace the dust caps.
4. If you wish to remove dust from the lenses or mirrors you first should try using
a can of filtered compressed air. Remove the dust cap and the dew shield in
the case of the refractor style of telescope, or take the mirror cell out of the
reflecting type. Once you are able to freely blow across the surface of the
optics then begin by first pointing the can away from the piece and gently
expel some air. This will remove any condensate in the air can lines and clear
off dust that may have accumulated on the discharge tube. Next using short
quick bursts of air carefully remove the dust particles. DO NOT HOLD THE
TRIGGER OF THE COMPRESSED AIR FOR TOO LONG AS
CONDENSATE MIGHT BE BLOWN OUT ACROSS THE OPTICAL
SURFACE. If particles still remain after several attempts at removal than the
telescope should probably be taken back to the dealer for cleaning.
6
The optics of your telescope should last a long time before they generally
require major cleaning. By keeping the dust caps on and avoiding the
temptation to handle the lenses or mirrors you will find that very little is
needed in the way of optical maintenance.
What to Look For in the Sky
WARNING: DO NOT AIM YOUR TELESCOPE AT THE SUN OR ANYWHERE
NEAR THE SUN! INSTANT AND IRREVERSIBLE DAMAGE CAN OCCUR,
INCLUDING BLINDNESS!
DO NOT LET CHILDREN USE ANY TELESCOPE WITHOUT ADULT
SUPERVISION AT ANY TIME THE SUN IS ABOVE THE HORIZON.
There is a whole universe of objects to be seen in the night sky so where does one
start? Well lets examine the most visible objects first.
The Moon.
The moon is the easiest target to find in the night. When it is in the full position, when
the entire face is lit, then it bathes the night with a silvery light washing out the rest of
the sky from all but the brightest objects. The best time to view the moon is actually
not when it is full but rather anytime up to the first quarter, this is when the face
appears to be half lit up. The terminator on the moon, the dividing line between dark
and light, shows the best features such as craters and mountains.
The Planets
The planets are our solar system companions. These range in size from moon size
rocky bodies to giant gas balls which could hold 1000 Earths. To find the planets
requires some information as to when they are visible. An astronomy magazine such
as SkyNews or Sky and Telescope, will give you the locations of the planets from
month to month. Most people who have looked up at night have probably seen
some planets but did not realize it. A planet, when it is well clear of the horizon will
not twinkle as do the stars. They are resolved by the eye as tiny balls as opposed to
the stars which are infinitely small points of light. The easiest planets to view, when
they are visible, are Venus, Mars, Jupiter and Saturn, Uranus and Neptune. Mercury
is an object to look for but it is usually below the horizon and often is a challenge to
find. Pluto is too small for most telescopes below 10" so do not worry about finding it
at this time.
Each of the planets has its own interesting views. Venus is covered with clouds so all
we see is an extremely bright light, the brightest next to the moon, however it like our
moon goes through phases. In other words the planet surface will, as it travels
around the sun, appear to have different amounts of it lit up. This gives the planet
varying crescent shapes, as if a bite were taken out of it. Mars is the red planet. It is
very noticeably red when rising above the horizon and stands out like a beacon in
the night sky. The apparent brightness of Mars varies as the planet or bi ts aro und the
7
sun so throughout its time being visible to us it will brighten and dim depending on
how our two planets are aligned relative to each other.
Jupiter is the largest planet in our solar system. It is the second brightest planet next
to Venus. Jupiter also has moons of which 4 are easily visible through a telescope.
In fact as you watch them throughout the evening you will see that they change their
positions relative to each other and to Jupiter. It is possible with careful planning to
actually see one of the moons disappear either in front of, or behind Jupiter as they
travel around their planet. Another great feature of Jupiter is the cloud belt pattern.
Jupiter is alive with weather activity and the planet’s clouds have formed in time into
belts which are visible to telescopes, when our skies allow it.
Saturn, the second largest planet, is not as bright as Jupiter and its moons are not as
visible through small telescopes. However it has very large rings that encircle the
planet which are spectacular. The planet appears as a pale yellow, as do the rings
but one can spend hours looking at these. The major division in the rings, the
Cassini division, is possible to see in a small telescope if the viewing is steady.
Uranus and Neptune are the last of the solar system gas giants. They do not yield up
spectacular sights like Jupiter or Saturn, however they are part of our family and are
rewarding to see as they can be a challenge to find.
Beyond our solar system there lies a multitude of objects to be found. Galaxies,
nebulae and star clusters abound.
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