Rosette NGC2237 (Brent)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: 12 Mon · LBN 943 · LBN 948 · LBN 949 · LBN 951 · NGC 2237 · NGC 2238 · NGC 2239 · NGC 2244 · NGC 2246 · NGC 2252 · Rosette A · Rosette B · Rosette Nebula · Sh2-275 · The star 12Mon

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Rosette NGC2237

Revision title: Full resolution

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Rosette NGC2237

Revision title: Full resolution

This has been one of the more challenging images I have done so far. The data is great, but getting good colors and details takes a lot of work. I started over in the processing about 5 times over a span of 3 weeks and finally got something I liked.

I used a mono camera (ASI2600mm) for the SHO channels, and some short exposures on a ASI2600mc color camera to get the star colors. -I was amazed with how much nebula signal there is with only 45 s of integration, I made the version C image the color camera version with only ~34 minutes of exposure.

I also tried and compared the new startnet++ V2 AI models and StarXTerminator model to separate the nebula and star images for independent processing. I thought StarXTerminator did a better job at removing all the stars, but it left a different noise pattern behind that was hard to process to make things look uniform. Starnet didn't get all the stars and had residuals, but I could clone out the artifacts. So at least for this image, I liked Starnet V2 better.

Original
C
Final
D
E

C

Title: Rosette RGB only - no filters

Description: This was the nebula using only 45 x45s images on my ASI2600mc color camera - NO Filters!

Uploaded: ...

D

Title: Full resolution

Description: Full resolution with much more detail

Uploaded: ...

E

Title: Full Resolution - No Stars

Description: Starless version used for nebula processing, generated with Starnet++ V2.
The structure is amazing!

Uploaded: ...

IOptron CEM
HyperStar Lens Astrophotography
Northeast Imagers
Cloudy Nights
Schmidt-Cassegrain Telescope (SCT) Imagers
Imaged with N.I.N.A.

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Status	Advanced success
Started	...
Astrometry.net job	5584369
PixInsight job	GA6AGV9OFON3JKJBKK0VQ3RCJ5U87GZ0
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h32m16s.67
RA (top/left)	06h37m23s.70
RA (top/right)	06h27m04s.40
RA (bottom/right)	06h27m09s.77
RA (bottom/left)	06h37m29s.77

Dec (center)	+04°56′38″.0
Dec (top/left)	+04°03′16″.1
Dec (top/right)	+04°05′35″.5
Dec (bottom/right)	+05°49′53″.7
Dec (bottom/left)	+05°47′41″.7

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Rosette NGC2237

Revision title: Full resolution

Rosette NGC2237

Revision title: Full resolution

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Rosette NGC2237

Revision title: Full resolution

Rosette NGC2237

Revision title: Full resolution

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