Home Up M3 Antares & M4 M5 M11 M13 M15 M22 M35 M37 M38 M41 M44 M45 Pleiades M47 & M46 M48 M56 M67 M92 M103 NGC 457 NGC 663 NGC884_869 NGC 2419 NGC 7789 Ophiuchus_Globulars |
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NGC 663

NGC 663
NGC 654
NGC 659
IC 166
Berk 6
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0bject |
NGC 663, 654, 659, IC 166, and Berk
6 Open Clusters in Cassiopeia |
| Date |
September 13-17, 2009 |
| Exposure |
LRGB 20:50:50:50 (unbinned) |
| Camera |
STL11000M with Astronomik filters |
| Telescope |
ASA 10N f/3.7 on Losmandy G11 with Gemini |
| Guiding |
External guide with mini Borg 50 |
| Processing |
MaximDL, PhotoshopCS3, FITS Liberator,
GradientXterminator, AstroActions |
| Comments |
Clear but with nasty light pollution to
the north |
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