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Topics posted by Helen
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Asteroid (156) Xanthippe occults star Monday Oct 29 at 1919UT)
By Helen, in Celestial Events Heads Up
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Attaching a star analyser 100 to a dslr lens - cheapest way?
By Helen, in Radio Astronomy and Spectroscopy
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- 810 views
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- 10 replies
- 755 views
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- 355 views
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- 707 views
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