IC 405 - The Flaming Star Nebula (Cosgrove's Cosmos (Patrick Cosgrove))

Celestial hemisphere: Northern · Constellation: Auriga (Aur) · Contains: AE Aur · Flaming Star Nebula · IC 405 · Sh2-229

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IC 405 - The Flaming Star Nebula

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IC 405 - The Flaming Star Nebula

IC 405 - The Flaming Star Nebula, also known as Caldwell 31, is a nebulae in the constellation Auriga surrounding the bright blue irregular variable star AE Aurigae. This nebulae is located about 1500 light years away and is about 5 light years across. The red portions of the nebula is from emission nebulae, while the bluer portions are reflection nebulae, reflecting the light of AE Aurigae.

I shot this over the nights of 11-08 & 11-09 and ended up with 136 subs of 2.5 minutes exposure. So I was hoping for an integration time of 5.5 hours. If you saw my Cave Nebula image, you read about the problem I encountered on the second night of shooting - where thin cirrus clouds were reflecting light pollution located to my north. I had the same problem with this image, but it was not as severe. I ended up having to lose about 34 subs because they were much worse than the others. This gave me a total useful integration time of about 4.25 hours. Fortunately I did not lose as many frames on this one and the noise was more easily handled.

Here are the image details:

102 x 150 seconds, bin 1x1 @ -15C. ( I was hoping for 150!)

45 Bias exposures

25 Dark exposures

45 Flats

Scope: William Optics 132mm FLT F/7 APO

Guide Scope: Apterna 60mm

Camera: ZWO ASI294MC-Pro

Guide Camera: ZWO ASI290Mini

Focus Motor: Pegasus Astro Focus Cube 2

Field Rotator: Pegasus Astro Falcon

Mount: Ioptron CEM60

Polar Alignment: Ioptron Ipolar integrated alignment cameras

Capture Software: PHD2 Guider, Sequence Generator Pro controller

Image Processing: Deepsky Stacker, Pixinsight, Photoshop, Coffee, extensive processing indecision and second guessing, and much swearing…..

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Advanced success
Started	...
PixInsight job	K7K316Q6TQ71CNP86G8LM32APR51X0YC
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h16m04s.89
RA (top/left)	05h13m20s.29
RA (top/right)	05h19m04s.52
RA (bottom/right)	05h18m51s.13
RA (bottom/left)	05h13m03s.29

Dec (center)	+34°30′45″.1
Dec (top/left)	+34°04′15″.6
Dec (top/right)	+34°08′54″.1
Dec (bottom/right)	+34°56′59″.9
Dec (bottom/left)	+34°52′18″.2

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IC 405 - The Flaming Star Nebula

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