Related Manuals for Celestron LABS STARSENSE EXPLORER 8 DOBSONIAN
Summary of Contents for Celestron LABS STARSENSE EXPLORER 8 DOBSONIAN
- Page 1 I N ST R U CT I O N M A N U A L #22470 STARSENSE EXPLORER 8” DOBSONIAN #22471 STARSENSE EXPLORER 10” DOBSONIAN #22472 STARSENSE EXPLORER 12” DOBSONIAN...
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Page 2: Table Of Contents
INTRODUCTION Congratulations on your purchase of the StarSense Explorer Dobsonian (SSE Dob) telescope. Your SSE Dob combines large optics with the exciting StarSense Explorer dock and app to make finding and observing all kinds of astronomical objects fun and easy! You’ll be able to locate faint deep-sky objects—galaxies, nebulae, star clusters and more— and place them within the field of view of the eyepiece in seconds. -
Page 3: What's In The Box
WHAT’S IN THE BOX Box 1 - Dobsonian Base Side supports (x2) Base assembly screws Left side panel Right side panel Front panel Top plate Bottom plate (x22 for 8” & 10” Dobs) (x27 for 12” Dob) FEET ASSEMBLY AZIMUTH PIVOT BOLT ASSEMBLY Feet (x3) Feet screws Feet screw... - Page 4 Box 3 - Primary Mirror (12” Dob only) FRONT BACK Primary mirror in mirror cell Mirror cell screws (x6) ENGLISH...
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Page 5: Base Assembly
BASE ASSEMBLY Figure 1A: Exploded view of the StarSense Explorer Dobsonian base. ENGLISH... -
Page 6: Telescope Assembly
TELESCOPE ASSEMBLY Figure 1B: Exploded view of the StarSense Explorer Optical Tube Assembly Refer to Figure 1 to see how the parts of the SSE Dob fi t together. For detailed assembly instructions, refer to the printed Quick Setup Guide included in the box, or on the SSE Dob product page at www.celestron.com ENGLISH... -
Page 7: Pointing The Telescope
POINTING THE TELESCOPE You can adjust the tension along the altitude axis by turning Dobsonian bases are altazimuth mounts. This means that the knob located on the same side as the telescope’s the telescope moves in two directions: up-and-down focuser—the altitude tensioning knob (Figure 4). (i.e. -
Page 8: Focusing
FOCUSING The SSE Dobs come with a 2” Crayford focuser, a 2” Since the SSE Dob is a Newtonian refl ector, the images extension tube, and a 2”-to-1.25” eyepiece adapter. you’ll see will appear upside-down as compared to the With these three items, you can use virtually any telescope naked eye (Figure 6). -
Page 9: Using The Starpointer
USING THE STARPOINTER Although you won’t need to rely on the StarPointer red-dot To replace the battery: fi nder when you are using the StarSense Explorer app, it can 1. Use a Phillips-head screwdriver to remove the battery help you align the app with the telescope. The StarPointer cover securing screw (Figure 8). -
Page 10: Starsense Explorer Dock And App
STARSENSE EXPLORER DOCK AND APP Perhaps the most exciting feature of the StarSense Explorer Dobsonian is the StarSense Explorer dock and the StarSense Explorer smartphone app. With the app to guide you, you’ll spend more time observing objects instead of struggling to find them among myriad stars overhead! The Celestron StarSense Explorer is the only Dobsonian that includes this incredible feature. -
Page 11: Determining Magnification And Selecting Eyepieces
DETERMINING MAGNIFICATION COOLING YOUR AND SELECTING EYEPIECES TELESCOPE’S OPTICS To change the magnifi cation of the telescope, you’ll need You’ll get the best views through your telescope when it to change the eyepiece in the telescope’s focuser. To has reached thermal equilibrium with the ambient air. If calculate the magnifi cation you can achieve with a given the telescope is warmer than the outside air, the mirror eyepiece, use this formula:... -
Page 12: Your First Night Out - What To Expect
YOUR FIRST NIGHT OUT - WHAT TO EXPECT Globular Star Clusters You can observe literally thousands of objects with the These are tight clusters of hundreds of thousands of larger aperture of the SSE Dobs: stars that coalesced early in our galaxy’s formation. These The Moon clusters appear like globes of light. -
Page 13: Dark Adaptation And Light Pollution
DARK ADAPTATION AND NOTE ABOUT LIGHT POLLUTION SMARTPHONE POWER It takes at least a half-hour for the human eye to become Before going out for a night of observing with your dark-adapted, so don’t immediately expect to see subtle StarSenese Explorer Dobsonian, be sure your smartphone detail in faint deep-sky objects as soon as you get outside. -
Page 14: Collimating The Optics
COLLIMATING THE OPTICS Collimation is the process of aligning the telescope’s optics. It is easiest to collimate a telescope during the day with Dobsonians use the Newtonian refl ector optical design, the telescope pointed toward a blank wall. This will provide which consists of a parabolic primary mirror and a fl at a high-contrast view, making it easier to determine which secondary mirror. - Page 15 a. Adjust one set screw at a time. Make only small For the 8” Dobsonian, use the 2.5mm hex key and adjustments. Phillips head screwdriver to tilt the primary mirror. There are three pairs of collimation screws. Each pair works together b.
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Page 16: Transporting
For the 10” and 12” Dobsonians, you won’t need d. Re-tighten the three locking thumbscrews until any tools to tilt the primary mirror. Instead, simply adjust snug. the thumbscrews. Three of the thumbscrews are locking e. When you are fi nished, the view through the screws, while the other three thumbscrews adjust the collimation cap should look like Figure 16. -
Page 17: Care And Maintenance
CARE AND MAINTENANCE Store the telescope indoors in a dry place. A garage is 5. To remove marks and oils, use lens cleaning fl uid ideal; it will keep the optics near the ambient outdoor and lens cleaning tissue to clean the mirror surface. temperature so the optics won’t take as long to acclimate. -
Page 18: Specifications Starsense Explorer 8" Dobsonian
SPECIFICATIONS #22470 StarSense Explorer 8” Dobsonian Optical Design Newtonian reflector Aperture 8” (203mm) Focal Length 1200mm Focal Ratio F/5.9 Optical Coatings XLT reflective coatings with silicon dioxide and tantalum pentoxide protective overcoatings for primary and secondary mirrors Mirror Material Pyrex equivalent for primary and secondary mirrors Primary mirror thickness 25mm (approx. -
Page 19: Specifications Starsense Explorer 10" Dobsonian
SPECIFICATIONS #22471 StarSense Explorer 10” Dobsonian Optical Design Newtonian reflector Aperture 10” (254mm) Focal Length 1200mm Focal Ratio F/4.7 Optical Coatings XLT reflective coatings with silicon dioxide and tantalum pentoxide protective overcoatings for primary and secondary mirrors Mirror Material Pyrex equivalent for primary and secondary mirrors Primary mirror thickness 30mm (approx. -
Page 20: Specifications Starsense Explorer 12" Dobsonian
SPECIFICATIONS #22472 StarSense Explorer 12” Dobsonian Optical Design Newtonian reflector Aperture 12” (305mm) Focal Length 1500mm Focal Ratio F/4.9 Optical Coatings XLT reflective coatings with silicon dioxide and tantalum pentoxide protective overcoatings for primary and secondary mirrors Mirror Material Pyrex equivalent for primary and secondary mirrors Primary mirror thickness 37mm (approx. -
Page 21: Solar Warning
SOLAR WARNING • Never look directly at the Sun with the naked eye or with a telescope (unless you have the proper solar fi lter). 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.