IC1805 Heart Nebula in SHO - Combining Old Data with New Processing Tools (Ben Koltenbah)

IC1805 Heart Nebula in SHO - Combining Old Data with New Processing Tools

IC1805 - The Heart Nebula

Thus far, it has been a long, dark and starless, if not soulless (shall I say heartless?), winter in the Pacific Northwest as far as acquisition of new image data is concerned. To keep myself occupied with astrophotography and stave off the melancholy, I've been reviewing old data and images, wondering how I would process past images today with the latest tools that were not available then. IC1805, the Heart Nebula, has been a recurring target of mine, where I have repeated the offense of an unfortunate color choice dominated by green. I've included these images in several public presentations, each time regretting my offense as I view the image projected on a large screen, filling the room with a green, sickly glow. Needing something to do while sheltering from the frigid rain, I've combined three seasons of past data to produce this SHO image, this time severely reducing the green as well as applying the latest tools available in PixInsight.

Addendum: Winter has now turned to Spring, and I've had some fresh time under the stars. The Winter Funk has passed. I hope it is the same with you and that you enjoy my old data as I work on the new ...

Final
Original
B
C
E

B

Title: Luminance Channel

Description: This originated as an image integration of the H-alpha, O-III and S-II channels with separate processing steps from the individual color channels.

Uploaded: ...

C

Title: Inverted Luminance Channel

Uploaded: ...

E

Title: Annotated SHO Image

Description: Main annotation was made using PixInsight's AnnotateImage and DrawAnnotation scripts. Major IC, LBN and LDN objects are shown along with WeBo 1 planetary nebula. Also shown are quasars (and redshifts), galaxies and star magnitudes up to 11.

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	9085468
PixInsight job	LT4NA2OQSUE21321PV90EXO378IS5381
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h32m52s.20
RA (top/left)	02h42m34s.51
RA (top/right)	02h23m09s.28
RA (bottom/right)	02h23m49s.18
RA (bottom/left)	02h41m53s.37

Dec (center)	+61°24′10″.1
Dec (top/left)	+62°30′26″.9
Dec (top/right)	+62°30′33″.5
Dec (bottom/right)	+60°15′26″.4
Dec (bottom/left)	+60°15′21″.6

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