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Orion StarBlast 4.5 Instruction Manual
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Orion StarBlast 4.5 Instruction Manual

Reflector telescope
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The Claremont Galactic Space Viewer
Orion StarBlast 4.5" Reflector Telescope
INSTRUCTION MANUAL
Claremont Public Library
208 North Harvard Avenue
Claremont, CA 91711
(909) 621-4902
This telescope is made available by the Friends of the Claremont Library
(http://www.claremontlibrary.org/)
and fostered by the Pomona Valley Amateur Astronomers (http://pvaa.us/)
For telescope maintenance, please contact Mathew Wedel
mathew.wedel@gmail.com
(preferred) or
info@pvaa.us
1

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Summary of Contents for Orion StarBlast 4.5

  • Page 1 The Claremont Galactic Space Viewer Orion StarBlast 4.5” Reflector Telescope INSTRUCTION MANUAL Claremont Public Library 208 North Harvard Avenue Claremont, CA 91711 (909) 621-4902 This telescope is made available by the Friends of the Claremont Library (http://www.claremontlibrary.org/) and fostered by the Pomona Valley Amateur Astronomers (http://pvaa.us/) For telescope maintenance, please contact Mathew Wedel mathew.wedel@gmail.com...
  • Page 2 " The best thing that we're put here for's to see; The strongest thing that's given us to see with's a telescope. Someone in every town seems to me owes it to the town to keep one. In Littleton it may as well be me." Brad McLaughlin, quoted by Robert Frost in “The Star Splitter”...
  • Page 3 Telescope Parts 1) Eyepiece 2) EZ Finder 3) Optical tube 4) Focuser 5) Tube Clamp 6) Altitude Clamp 7) Mirror Assembly (don‟t touch) 8) Support 9) Handle 10) Eyepiece rack 11) Eyepiece 12) Feet...
  • Page 4 Focuser Details 13) Focus wheels 14) Eyepiece securing thumb screws EZ Finder Details...

  • Page 5: Getting Started

    Getting Started Please read the instructions and practice with the telescope inside before you take it out in the dark. This is a “Push-to” telescope. Once you find what you are looking for, you can either watch the object move through your “field of view” (what you see through the eye piece) and then reposition the telescope, or keep pushing the scope to hold the object in the center of the eyepiece.
  • Page 6 Try out the telescope during the day: The Zoom eye piece should be in the focuser and make sure it is secured with the two thumbscrews. Remove the dust caps from the eyepiece and telescope tube. Focusing the Telescope Always start by using your lowest-power (turn the body of the Zoom so the pointer is at “24”) to locate and center the object.
  • Page 7 planets and double stars. The Moon also takes higher magnifications well. You may have to refocus a little after changing power. If you find that it‟s awkward to put your eye up to the eyepiece, you can rotate the tube by loosening the knob on the tube clamp and moving the optical tube until the focuser is in a convenient position.
  • Page 8 of your observing session, be sure to turn the power knob counterclockwise until it clicks off. When the two white dots on the EZ Finder‟s rail and power knob are lined up, the EZ Finder s turned off. Aligning the EZ Finder When the EZ Finder is properly aligned with the telescope, an object that is centered on the EZ Finder‟s red dot should also appear in the center of the field of view of the telescope‟s eyepiece.
  • Page 9 Fog on the mirrors and eyepieces: One of the odd things that happens when star gazing is that dew forms on pretty much everything (and everyone). The big mirror is tucked safely down at the bottom of the telescope, and so it does not get much dew on it. Eyepieces, however, often have dew form on them, making them useless until they warm up and dry out.
  • Page 10 What to Expect Planets will look small, but you should be able to see cloud bands on Jupiter and the rings of Saturn. Craters on the Moon will be clear and numerous, the waxing and waning of Venus should be visible, and many bright deep-sky objects will fill the eyepiece. Don‟t expect to see color as you do in NASA photos as our eyes are not sensitive enough to see color in deep-sky objects, except in a few of the brightest ones.
  • Page 11 The Planets do not stay at “fixed” locations like the stars do. To find them you should refer to the Sky Calendar (telescope.com), or to charts published monthly in Astronomy, Sky & Telescope, or other astronomy magazines and web sites. Venus, Jupiter, and Saturn are the brightest objects in the sky after the Sun and the Moon.
  • Page 12 Pay particular attention to objects with a “Messier Number”, like The Orion Nebula (M-42) and the Andromeda Galaxy (M-31). First published in 1774, Charles Messier made this list to help observers identify objects that might be mistaken for comets.
  • Page 13 Care and Maintenance: Store the telescope with the dust caps on in a clean, dry, dust-free place, safe from rapid temperature changes and humidity. Do not store the telescope outdoors. Please keep the dust covers on the telescope and eye piece when not in use. Regarding cleaning the lenses or mirrors: Don‟t.
  • Page 14 Aligning the Mirrors: Again, please don‟t. That is what the three screws at the base of the scope do, and it is pretty easy to mess them up. If it seems that the telescope is in need of adjustment, please tell the librarian. This is important enough to say again: WARNING: Never look directly at the Sun through your telescope or its finder scope--even for an instant--as permanent eye damage could result.
  • Page 15 Looking at the Little Dipper will show you how good the viewing is. If you can see all the stars, you are doing pretty well. Be sure to wait until your eyes adapt to the dark. Sky watching Checklist Wait for a night that is clear and dark as you can see more stars when the Moon is not shining brightly.
  • Page 16 Notes: The finder scope has a battery pack attached to the telescope, instead of the stock “button” battery. To change batteries, just slide the cover off the pack, and replace the two AAA batteries. If the wires become unattached, please tell the librarian. Items included with the telescope: ...