M46 - Open Cluster with an Added Bonus |
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Description:
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Lovely open cluster in Puppis with a nice surprise object- a planetary nebula (NGC 2438) |
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Telescope/Mount:
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Takahashi FC100 f/8 refractor on Losmandy GM200 mount |
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Camera and Control Software:
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Starlight Xpress HX916 unbinned (1.73 arc-secs per pixel); Maxim DL-CCD 3.05 |
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Exposure:
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L: 6x2m, RGB: 3x2m |
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Calibration:
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Dark subtraction, flat-fielded |
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Processing:
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Contrast stretch only |
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Guiding:
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ST4, 80/910 refractor |
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Date and Location:
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08-Feb-2002, from my sidewalk in Alameda,California |
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Seeing, Transparency and Conditions:
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unknown |
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Comments:
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Not sure what's causing those blue halos... |