Orion 10277 Instruction Manual Download Page 2

2

1. Parts

Part Quantity
A – Tripod legs 

3

B – Hex-head tripod mounting bolts 

3

C – Washers 

D – Wing nuts 

3

E – Leg lock thumbscrew 

3

F – Accessory tray 

1

G – Altazimuth yoke mount 

1

H – Azimuth lock knob 

1*

I – Telescope optical tube 

1

J – Altitude lock knob (same as H and E) 

1

K – Tripod leg brace 

1

L – Red dot finder scope 

1

M – Dust cover 

1

N – 25mm Kellner eyepiece 

1

O – 10mm Kellner eyepiece 

1

P –  Yoke knobs 

* May come pre-installed.

C

ongratulations on your purchase of an Orion telescope. Your new SpaceProbe II 76mm Altazimuth 

Reflector is a terrific starter instrument for exploring the exotic wonders of the night sky. Designed to be 
lightweight and easy to use, it will provide many hours of enjoyment for the whole family.

 

If you have never owned a telescope before, we would like to welcome you to amateur astronomy. Take 
some time to familiarize yourself with the night sky. Learn to recognize the patterns of stars in the major 
constellations. With a little practice, a little patience, and a reasonably dark sky away from city lights, you’ll 
find your telescope to be a never-ending source of wonder, exploration, and relaxation.
These instructions will help you set up, properly use, and care for your telescope. Please read them over 
thoroughly before getting started.

WARNING: 

Never look directly at the Sun through 

your telescope—even for an instant—without a 
professionally made solar filter that completely 
covers the front of the instrument, or permanent eye 
damage could result. Young children should use this 
telescope only with adult supervision.

Table of Contents

1.  Parts  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.  Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3.  Preparing the Telescope for Operation  . . . . . . . . . . . . . 4
4.  Astronomical Observing  . . . . . . . . . . . . . . . . . . . . . . . . 5
5.  Aligning the Mirrors (Collimation)  . . . . . . . . . . . . . . . . . 9
6.  Telescope Care and Maintenance   . . . . . . . . . . . . . . . 10
7.  Worthwhile Optional Accessories  . . . . . . . . . . . . . . . . 11
8.  Specifications  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2. Assembly

Refer to 

Figures 1 and 2 and the parts list at left for identifica-

tion of specific parts during assembly.
1.  Thread a leg lock thumbscrew (E) into each tripod leg (A) 

as shown in 

Figure 3, and tighten. Do not over-tighten 

the leg lock thumbscrews or you may damage the col-
lar they are attached to
.

2.  Now attach the tripod leg brace (K) to the three aluminum 

tripod legs (A) using the screws in the brace attachment 
brackets 

(Figure 4). Remove the nut and the screw from 

the bracket, then insert one of the brace struts into the 
bracket, lining up the holes to allow the screw to be insert-
ed through the bracket and strut. Make sure the leg brace 
is oriented so that the threaded hole in the center is facing 
up. Then thread the nut on the exposed end of the screw 
and tighten – finger tight should be good enough. 

3.  With the leg brace attached to all three tripod legs, attach 

the tripod legs to the altazimuth yoke mount (G). Three 
hex-head bolts (B) with washers (C) and wing nuts (D) are 
provided for this purpose. Note that the bolts should be 
inserted from the side of the leg that has the hex-shaped 
hole, so that the bolt head seats in the hex-shaped hole 
(Figure 5a). The washer, then the wing nut are placed on 
the opposite side on the exposed end of the bolt 

(5b).

4.  Now stand the tripod upright, spreading the legs apart so 

the accessory tray can be installed.

5.  Attach the accessory tray (F) to the tripod leg brace (K) 

(Figure 6). Rotate the tray clockwise to thread the screw 
on the underside of the tray into the threaded socket in the 
center of the tripod leg brace.

The tripod and mount are now fully assembled 

(Figure 7)

Next you will attach the telescope optical tube to the altaz-
imuth yoke mount.
6.  With the optical tube (I) oriented relative to the yoke mount 

(G) as shown in 

Figure 8, slide the altitude micro-motion 

rod into its receptacle on the side of the yoke 

(Figure 8a)

Then place the optical tube into the yoke so that the alti-
tude castings on the side of the optical tube slide into the 
grooves of the yoke 

(8b). To secure the optical tube to the 

mount, insert the yoke knobs (P)  through the holes on 
each side of the yoke and thread them into the altitude 

Summary of Contents for 10277

Page 1: ...ate Offices 89 Hangar Way Watsonville CA 95076 USA Copyright 2017 Orion Telescopes Binoculars All Rights Reserved No part of this product instruction or any of its contents may be reproduced copied mo...

Page 2: ...ecific parts during assembly 1 Thread a leg lock thumbscrew E into each tripod leg A as shown in Figure 3 and tighten Do not over tighten the leg lock thumbscrews or you may damage the col lar they ar...

Page 3: ...F O N N P P B C D J J H G G K M L Figure 1 The parts of the SpaceProbe II 76mm Altazimuth Reflector telescope Figure 2 The SpaceProbe II 76mm Altazimuth Reflector telescope fully assembled A l t i t...

Page 4: ...rving at night Follow this procedure 1 First remove the dust cover M from the front of the tele scope 2 With the 25mm eyepiece already in the focuser from step 9 above point the telescope at a well de...

Page 5: ...m indoors through an open or closed window because the tempera ture difference between the indoor and outdoor air will cause image blurring and distortion If at all possible escape the light polluted...

Page 6: ...an pur chase additional eyepieces later if you wish to have more magnification options Magnification is calculated as follows Telescope Focal Length mm Eyepiece Focal Length mm Magnification For examp...

Page 7: ...newly inserted eyepiece What to Expect So what will you see with your telescope You should be able to see bands on Jupiter the rings of Saturn craters on the Moon the waxing and waning phases of Venu...

Page 8: ...ay to day Note Do not look at the Sun with any optical instrument without a professionally made solar filter or permanent eye damage could result D The Stars Stars will appear like twinkling points of...

Page 9: ...wing col limation procedure Note Precise collimation is best achieved by using an option al collimating tool such as a quick collimation cap a Cheshire eyepiece or a laser collimator Check our website...

Page 10: ...sets of collimation screws if necessary Again it will take a little trial and error to get a feel for how to tilt the mirror in this way When you have the dot centered as much as possible in the ring...

Page 11: ...ge in temperature We suggest leaving the telescope and eyepieces uncovered overnight to allow the condensation to evaporate 7 Worthwhile Optional Accessories Moon Filter A 1 25 Moon filter will cut do...

Page 12: ...instrument has been abused mishandled or modified nor does it apply to normal wear and tear This warranty gives you specific legal rights It is not intended to remove or restrict your other legal righ...

Reviews: