Orion Starblast 4.5" Instruction Manual
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A N N A R B O R D I S T R I C T L I B R A R Y
343 S. Fifth Avenue
INSTRUCTION MANUAL
WARNING:
Never look directly at the Sun through your telescope or its finder scope –
even for an instant – as permanent eye damage could result. Do not point the telescope
at the Sun, as parts will melt! Children should use this telescope only with adult supervision.
Ann Arbor, Michigan
ORION STARBLAST 4.5" TELESCOPE
Sponsored in part by the University Lowbrow Astronomers, a non-profit educational organization
promoting public awareness of astronomy. They hold public sky watches, demonstrations,
presentations, and discussions, all free of charge. For a calendar of events, including information
about the open houses at the Peach Mountain Observatory, visit www.umich.edu/~lowbrows/
The Club is providing AADL with ongoing help in education and maintenance of the telescopes.
We hope you enjoy using it.
aadl.org
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Summary of Contents for Orion Starblast 4.5"
- Page 1 A N N A R B O R D I S T R I C T L I B R A R Y aadl.org 343 S. Fifth Avenue Ann Arbor, Michigan ORION STARBLAST 4.5” TELESCOPE INSTRUCTION MANUAL WARNING: Never look directly at the Sun through your telescope or its finder scope –...
- Page 2 Telescope Parts 1. Eyepiece 2. EZ Finder 3. Optical tube 4. Focuser 5. Tube Clamp 6. Altitude Clamp 7. Mirror Assembly (Please don’t touch) 8. Support 9. Handle 10. Feet...
- Page 3 Focuser Details 11. Focus Knobs 12. Eyepiece Securing Thumb Screws ...
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Page 4: Getting Started
Getting Started Please read the instructions and practice with the telescope inside before you take it out in the dark. When setting up the telescope, put it on something solid, like a picnic table or a wooden box. The tele- scope must be on something solid because any vibration or movement will be magnified when looking through it. - Page 5 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. Low magnification shows a larger area of sky in the eyepiece, making finding and centering an object much easier.
- Page 6 Operating the EZ Finder A “finder scope” helps you find things. It’s like a sight on a rifle. The EZ Finder works by projecting a tiny red dot onto a lens mounted in the front of the unit, so that when you look through the lens, the red dot will appear to float in space.
- Page 7 If not: Without moving the telescope, use the EZ Finder’s left/right (azimuth) and up/down (altitude) adjust- ment knobs to position the red dot on the object in the eyepiece. When the red dot is centered on the distant object, make sure that the object is still centered in the telescope’s field of view.
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Page 8: What To Expect
Images will be much better if you set up the telescope outside fifteen or more minutes before you start observing. This allows the optics to cool down to air temperature, reducing image-degrading air currents inside the telescope’s open tube. Setting Magnifications This eyepiece chart shows what magnification you will have for each setting of the Zoom eyepiece. - Page 9 Objects to Observe: The Moon is one of the easiest and most interesting targets to view with your telescope. Lunar craters, “seas”, and even mountain ranges can all be clearly seen from a distance of 238,000 miles away! With its ever-changing phases, you’ll get a new view of the Moon every night it’s up.
- Page 10 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 11 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.
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Page 12: Care And Maintenance
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 caps on the telescope and eyepiece when not in use. Regarding cleaning the lenses or mirrors: Please don’t. - Page 13 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. Young children should use this telescope only with adult supervision.
- Page 14 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. Get away from streetlights. Give your eyes about 20 minutes to adjust to the dark. Take Along a Sky-watching Kit: •...
- Page 15 You may wish to visit the Ann Arbor Clear Sky Chart at: aadl.org/go/sky The chart is a timeline for the weather. Take a look at the Ann Arbor chart below: The first four bars are the most important: Is it cloudy? How clear is the sky? What is the “Seeing,” and finally, how dark is it? The deeper blue the squares are, the better.
- Page 16 Items included with the telescope: • A Lens Pen • National Audubon Society Pocket Guide of Constellations • Two red flashlights • One Instruction Manual WARNING: Never look directly at the Sun through your telescope or its finder scope — even for an instant — or permanent eye damage could result. Do not point the telescope at the Sun, as parts will melt! Children should use this telescope only with adult supervision.
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