Celestron ASTROMASTER 102AZ (22065) Manual

1. Your AstroMaster includes: Optical tube, StarPointer ® finderscope, pre-assembled tripod with center leg brace and altazimuth mount attached, two eyepieces, erect image diagonal, accessory tray, lens cloth, and quick setup guide.
   
2. To set up the tripod, first spread the three tripod legs apart as far as they will go. Next, loosen the screw at the bottom of each leg and extend each leg until the tripod reaches your desired height (usually about six to 12 inches).
   
3. Secure each leg at the desired height by retightening the screw at the bottom of the leg.
   
4. Check to ensure that all three legs are roughly the same length so that the platform for the telescope is roughly level. Make adjustments to the leg lengths if needed.
   
5. To attach the accessory tray, line up the notches and turn the tray clockwise until tray tabs lock into place under the tripod brackets.
   
6. Check to ensure that you have attached the accessory tray correctly and it resembles the picture above.
   
7. Congratulations, you now have a fully assembled tripod and mount. Check that it matches the picture above.
   
8. Now, it's time to attach the telescope tube. First, back out the fastening screws on the top of the mount to allow enough clearance for the dovetail. Then, slide the tube's dovetail bar into the mount.
   
9. Center the dovetail bar in the mount and retighten the fastening screw to secure it in place. For added security, tighten the angled lock-down screw next to the fastening screw.
   

10. Loosen the setscrew on the focuser. Remove the plastic cap covering the end of the focuser.
    
11. Insert the diagonal into the focuser and tighten the setscrew.
    
12. Insert the chrome barrel of the 20mm eyepiece into the diagonal and tighten the setscrew.
    
13. Next, you'll install the finderscope. Loosen the two Philips-head screws on the side of the finderscope. Slide the clamp over the dovetail bracket. Then, tighten the Philips-head screws to secure the finderscope in place.
    
14. Remove the small plastic tab under the finderscope's battery cover by pulling it straight out. This will allow you to turn the finderscope's red dot on and off. To preserve the finderscope's battery life, make sure you always turn off the red dot when you aren't using it.
    
15. Don't forget to remove the lens cap from the front of your telescope!
    
16. That's it! Your AstroMaster telescope is now fully assembled. There's just one more thing for you to do before you begin exploring the night sky. In the next section, we'll align the red-dot finderscope to the main telescope optics so you can find any target you want to see with your telescope.
    

1. CHOOSE A TARGET
   Take your fully assembled telescope outside during the day and find an easily recognizable object, such as a streetlight, car license plate, or sign. The object should be as far away as possible, but at least a quarter mile away.
   
2. CENTER THE TARGET IN THE EYEPIECE
   Look through the telescope using your lower powered eyepiece. Move the telescope until the object you chose lies in the center of the view. If the image is blurry, gently turn the focus knobs on either side of the telescope until it comes into sharp focus.
   
3. LOOK THROUGH FINDERSCOPE
   Once the object is centered in your lower powered eyepiece, turn the finderscope's power dial all the way up to illuminate the red dot. Look through the finderscope and locate the dot.
   
4. ADJUST THE FINDERSCOPE
   Without moving the telescope, use the finderscope's two adjustment knobs to make slight adjustments to the finderscope's pointing position until the red dot appears over the same object you are observing in the telescope's 20mm eyepiece.
   
5. YOUR FINDERSCOPE IS NOW ALIGNED!
   You won't need to realign the finderscope unless it is bumped or dropped, or you remove it from the main telescope optics.
   

1. With the Moon visible in the sky, set up your telescope with the 20mm eyepiece installed.
   
2. Move the telescope so that it is roughly pointing toward the Moon.
   
3. Turn on the finderscope, look through it, and locate the red dot. Continue moving the telescope until the red dot appears over the Moon.
   
4. Look through the telescope's 20mm eyepiece. Gently turn the focus knobs to adjust the sharpness of the image.
   
5. CONGRATULATIONS! YOU HAVE NOW OBSERVED YOUR FIRST CELESTIAL OBJECT! To get a closer view of the Moon, loosen the thumbscrews on the focuser and remove the 20mm eyepiece. Replace it with your 10mm eyepiece and tighten the thumbscrews to secure it in place. The 10mm eyepiece will give you significantly more magnification, making the Moon appear much larger.
   NOTE: You may need to adjust the focus knobs when you change eyepieces to make sure you are getting the sharpest image possible.
   
6. You can view many other celestial objects, such as planets, star clusters and nebulae using this same technique.
   

SOLAR WARNING: Never attempt to view the Sun through any telescope.