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Summary of Contents for Celestron STAR HOPPER
- Page 1 ® STAR HOPPER INSTRUCTION MANUAL...
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Page 2: Table Of Contents
6 & 8 ................GLOSSARY ......................® UNPACKING the Star Hopper 6 and 8 ............® ASSEMBLY of the Star Hopper 6 and 8 ............Assembling the Mounting ..................Assembling the Optical Tube .................. Mounting the Primary Mirror ................. BALANCING THE TELESCOPE .............. -
Page 3: Introduction
Celestron telescope. Please note that the Star Hopper® 4½ comes pre-assembled, so the sections that will be most useful to you initially are about setting your telescope up for use, including:... - Page 4 Inner Diameter Tubes Celestron’s Star Hopper® Dobsonians (6"and 8") have their primary mirrors housed in oversized, flat black, anti-reflective painted tubes, which reduce light scatter and tube currents, increasing image sharpness. These large telescope tubes also increase image contrast and improve “seeing”...
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Page 5: Diagram Of Star Hopper ® 4½
Eyepiece Focuser Finderscope Tube Ring Clutch Tension Screw Altitude Bearing Mount Star Hopper® 4 1/2... - Page 6 Eyepiece Focuser Telescope Altitude Tube Bearing Locking Bolt Dobsonian Mount Star Hopper 6 and 8 ®...
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Page 7: Glossary
Poor collimation results in visual aberrations and distorted images. A full description of how to collimate your telescope follows on pages 12 - 14. Collimation cap - a tool for aligning the optics in a telescope. The optics to be aligned in the Star Hopper telescopes are the primary mirror and the secondary mirror. -
Page 8: And 8
2. Align the predrilled holes of the side panels with the holes on the edge of the front panel and attach using four ® of the wood screws. Do not completely tighten the screws yet. ( The Star Hopper logo should be facing the outside of the base). - Page 9 9. Place a Azimuth Pivot Washer over the center hole of the base plate (with the curved side facing down), and insert the Azimuth Pivot Bolt through the top of the base plate and the nylon sleeve. Figure 1 10. Thread the Azimuth Pivot Bolt into the T-nut at the bottom of the ground plate and tighten. (Note: If the center bolt is over-tightened it will make the base difficult to rotate in azimuth).
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Page 10: Assembling The Optical Tube
Mounting the Primary Mirror The primary mirror is mounted on the pinnacle mirror cell at Celestron. The pinnacle mirror cell fits into the rear of the telescope tube and is secured with the three supplied mounting screws. To mount the mirror/cell into the back of the tube: 1. -
Page 11: Balancing The Telescope
Balancing the Telescope ® The Celestron Star Hopper 6 and 8 come with dovetail slide bars for balancing. This feature allows virtually any optional accessory to be used with the telescopes, while still achieving balance easily. To balance the telescope:... -
Page 12: Installing Optional Finderscopes
(Optional Accessory) Celestron offers optional finderscopes that are useful in pointing the telescope at a particular object and locating it in your field of view. A finderscope is a small auxiliary telescope with cross hairs, of low power, but with a wide field ®... -
Page 13: Collimation
(see warning on page 3 regarding safe solar viewing). Once you have collimated your telescope, refer to the chart on page 15 to confirm that your alignment is correct. ® Do not touch the socket head cap screw in the center of the mirror cell of the Star Hopper 6 and 8. Aligning the Secondary Mirror If you have an eyepiece in the focuser, remove it. - Page 14 Prior to re-collimating the primary mirror, locate the collimation screws on the end plate at the base of the telescope tube. These three screws are to be adjusted one at a time. Normally, motions on the order of an turn will make a difference, with approximately a turn being the maximum required.
- Page 15 Newtonian collimation views as seen through the focuser using the collimation cap. Figure A: With the collimation cap in, if you cannot see the entire primary mirror reflected in the secondary mirror, the secondary mirror will need adjustment. To do this, adjust the secondary collimation screws by alternately tightening and loosening them until the outer edge of the primary mirror is reflected in the secondary mirror and the dark ring of the collimation tool is centered in the secondary mirror.
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Page 16: Telescope Basics
The general rule is that 60 power is the maximum that can be used for every inch of ® aperture, although seeing condition rarely allow this. For example, the Star Hopper 8 is 8" in diameter. -
Page 17: Celestial Observing
52°. Divide the 52° by the magnification, which is 49 power. This yields an actual field of 1.06°, or a little over a degree. The apparent field of each eyepiece that Celestron manufactures is found in the Celestron Accessory Catalog (#93685). -
Page 18: Observing The Sun
"guide" you to an object. For successful star hopping, it is helpful to know the field of view of you telescope. If you’re using the standard Celestron 25mm SMA ocular, your field of view is more than 1º. If you know an object is 3º... - Page 19 Star hopping to the Andromeda Galaxy (M31) is a snap, since all the stars needed to do so are visible to the naked eye. Star hopping may take some getting used to since you can see more stars through a finderscope (optional with the 6” and 8”) than you can see with the naked eye.
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Page 20: "Seeing" Conditions
Although the Ring Nebula lies between two “naked eye” stars, it may take a little time to locate because it isn’t visible in a finderscope. Note that the scale for this star chart is different from that of the chart on the previous page, which shows several constellations, including Pegasus, Triangulum and Andromeda. -
Page 21: Seeing
"Seeing" The terms “seeing conditions” or “seeing” refer to the stability of the atmosphere, which directly effects the amount of fine detail seen in extended objects. Essentially, extended objects are objects other than stars, of some size, such as nebulae and galaxies. -
Page 22: Cleaning The Optics
Care and Cleaning of the Optics ® Occasionally, dust may build up on the primary mirror of your Star Hopper telescope. Special care should be taken when cleaning any telescope so as to avoid damaging its optics. You shouldn’t need to clean your optics more than twice a year at the most. -
Page 23: Technical Specifications
TECHNICAL SPECIFICATIONS ® Listed below is technical information pertinent to the Celestron Star Hopper 4½, 6 and 8 telescopes. ® ® ® Star Hopper Star Hopper Star Hopper Item # 10400 Item # 10600 Item # 10800 Optical system Newtonian... -
Page 24: Optional Accessories
20mm, 26mm, 32mm, and 40mm. • Ultima - Ultima is Celestron’s top of the line eyepiece, using a hybrid design of four to seven different elements. Featuring long eye relief and a wide field of view, these eyepieces are fully multicoated on each air-to-glass surface to enhance contrast levels. - Page 25 These filters are especially helpful for lunar and planetary observing. Sky Maps (#93722) When learning the night sky, Celestron Sky Maps offer just the guidance you need. The maps show all the constellations and brighter deep-sky objects and are printed on heavy, moisture-resistant paper for dur- ability.
- Page 26 CELESTRON ONE YEAR WARRANTY Celestron International (CI) warrants this telescope to be free from defects in materials and workmanship for one year. CI will repair or replace such product or part thereof which, upon inspection by CI, is found to be defective in materials or workmanship. As a condition to the obligation of CI to repair or replace such product, the product must be returned to CI together with proof-of-purchase satisfactory to CI.
- Page 27 Celestron International 2835 Columbia Street Torrance, CA 90503 Tel: 310-328-9560 Fax: 310-212-5835 Web site: http://www.celestron.com Copyright 1998 Celestron International All right reserved (Products or instructions may change without notice or obligation). Item #10400-I 03-99 Price $10.00...
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