Celestial hemisphere:  Northern  ·  Constellation: Draco (Dra)  ·  Contains:  MQ J174726.70+701348.6  ·  MQ J174739.91+701125.4  ·  MQ J174808.57+701638.7  ·  MQ J174820.34+700646.5  ·  MQ J174904.35+701444.0  ·  MQ J174907.95+700525.1  ·  NGC 6503  ·  PGC 2733888  ·  RX J17482+7016  ·  S4 1749+70  ·  WISEA J174721.92+701850.0  ·  WISEA J174739.04+700852.7  ·  WISEA J174747.30+702340.1  ·  WISEA J174839.09+702041.9  ·  WISEA J174915.44+701700.0  ·  WISEA J175039.36+700458.6
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NGC6503 in Draco, Michael Feigenbaum
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NGC6503 in Draco

Getting plate-solving status, please wait...
NGC6503 in Draco, Michael Feigenbaum
Powered byPixInsight

NGC6503 in Draco

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Description

Here we have a try at a dwarf spiral NGC 6503 in Draco.  According to what I've been able to find, this 10th magnitude galaxy lies about 17 million light years away at the edge of The Local Void, a region of space spanning approximately 150 million light years that simply has less galaxies in it than would be expected.  

I did this work with the Vixen VC200L which I like very much so far.  I think I have it dialed in just right in terms of collimation which is not difficult but hard to know when you have it right as the manufacturer's collimation instructions are based entirely on lining things up visually and performing a star test.  

This area of the sky I believe also has a bit of galactic cirrus or IFN at the high latitude and it does show up to some degree in the luminance integrations.  I think to show this correctly would require a ton of integration time that I just don't have at the moment.  However, I was quite pleased with the masters and we must have had some fantastic seeing during this period as my HFR numbers while capturing my data were quite low compared to other work I've done with this telescope camera combination.  Meteo Blue was forecasting sub arc second conditions.

When I processed this, I dumped all of my work into Deep Sky Stacker so the resulting luminance master was comprised of all my L, R, G, and B frames together.  I drizzled this which I don't think was necessary nor beneficial in any meaningful way, but I wanted to try to see of the oversampled data would respond differently than normally sampled data using deconvolution processes.  I think there might have been a small increase in overall quality but if there is, it was a small difference indeed.  

I wanted to be careful with the saturation too as I do think I am prone to oversaturation.  The last thing to note is the framing.  The galaxy is offset to the left because I noticed a double star that I really liked in the middle of the lower right quadrant of the frame.  Looks like a red dwarf in orbit about a brighter yellow companion.  I don't know if it is just a visual double or a double in fact but still, something I wanted to include in the image.

Anyway, I hope you like this one, comments and criticism always welcome too...  Clear Skies and good health.

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  • NGC6503 in Draco, Michael Feigenbaum
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R

Description: Red channel balance

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NGC6503 in Draco, Michael Feigenbaum