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06-November-2009, 01:02 PM
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M15 Globula Cluster
M15 is a large cluster with a very dense core center and within the outer region of the core there is a planetary nebula. This nebula is very difficult to image and to stand out from its star packed area narrow band filters will make it stand out (Ha, OIII).
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06-November-2009, 05:42 PM
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Efrain, great job teasing that nebula out of the stars.
__________________
Observatorio de la Ballona
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06-November-2009, 06:40 PM
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I'm not surprised Pease 1 shows better with the OIII filter. In my LRGB it came out blue green rather than the red seen so often. I figured it must be the OIII doing that. It isn't easy to get to show.
Rick
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08-November-2009, 01:10 PM
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Thanks Andy, I had to superimpose Hubble and Adam Block images to locate it.
Hi Rick, I tried to image it with Ha but my guiding star would lose it and my LRGB data were already taken, Using the OIII i would have to remove the filterwheel and replace the Ha too much hassle. Maybe next year re-visit and try out the narrow bands to bring out this planetary. Clear Skies.
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