| An easy to use program for Sun and Moon Rise and Set. | A Windows version of Tonite. | |
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A list of test double
stars for small and medium size telescopes. |
A safe and inexpensive way
to clean mirrors and lenses. |
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| Why an obstructed system may produce higher resolution. | A GIF image of the only
known photograph of a lunar flare. |
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| A
map of the ten components of the Orion Nebula's Trapezium. |
A map of the Moon showing the phase for any
date. |
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| A guide to locating the companion of Sirius. |
About the Webmaster, Lenny Abbey