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Old 21-09-2005, 08:18 PM
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janoskiss (Steve H)
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Join Date: Jan 2005
Location: Sale, VIC
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One mag gain is a lot! Consider mag 4.5 vs mag 5.5 skies. Check out the attached xephem simulated images of M11. The first one is with a visibility limit of mag 13, the second one with mag 14.
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Click for full-size image (m11-mag13.png)
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Click for full-size image (m11-mag14.png)
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