ASTRO: vdB 124

vdB 124 is a reflection nebula around the star HD 170740 in Scutum about
700 light years away. It is the central part of the larger reflection
nebula IC 1287. At magnitude 5.7 the B2V star made imaging this one
difficult. I get nasty reflections from the corrector of the SCT with
strong blue stars that fills much of my field with a round blue glare
with a bright ring edge. I had to do a lot of processing to remove it
and still leave the nebula.

It's declination near 11 degree south declination limits my imaging
time. I only was able to get one night on it within an hour of the
meridian. It needs a lot more to catch the outer parts of IC 1287.
That just didn't happen when the weather failed to cooperate. A common
story for 2012.

14" LX200R @ f/10, L=4x10' RGB=2x10', STL-11000XM, Paramount ME

Rick

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Rick Johnson wrote in news:5199afaf$0$50588$862e30e2
@ngroups.net:

I get nasty reflections from the corrector of the SCT with
strong blue stars that fills much of my field with a round blue glare
with a bright ring edge.

Beautiful image!!

Out of curiosity, can you post a small preprocessed image to show
how bad your glare is? It'll give a better appreciation for the
effort you put in to removing it.

Brian
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http://www.skywise711.com - Lasers, Seismology, Astronomy, Skepticism
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