SH2-190 | The Heart Nebula (Kevin Morefield)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1795 · IC 1805 · IC 1824 · IC 1831 · NGC 1027 · NGC 896 · Sh2-190 · Sh2-191

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SH2-190 | The Heart Nebula

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SH2-190 | The Heart Nebula

Likely my last backyard capture of the season as the clouds have come to the Pacific Northwest. Three lucky, clear nights over the last few days provided 18 hours of SHO data on the Heart.

The mix here is a new one for me, Red = SII, Green = Min(Ha, SII, OIII), Blue = OIII. Ha was used for Luminance to keep noise down.

I believe there is a tiny ring shaped, blue planetary nebula above the Heart. I had thought it was an artifact but before I removed it, I checked other Astrobin images and sure enough it was there too.

Noise reduction was with Topaz De-Noise and I did not remove the stars for a change. It's a very strange algorithm in that it usually butchers small stars but they were untouched in this image. I also ran a reduce noise in PS after processing.

Original
B
Final
C

B

Description: curves

Uploaded: ...

C

Description: Reduce saturation

Uploaded: ...

Pacific Northwest Astrophotographers
Narrowband imaging
Takahashi Refractors
QHY Users Group
Fine Art Astrophotography
Sharpless2 Objects

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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	...
Astrometry.net job	3960505
PixInsight job	KKO074VC9DBWFK3IMF2A4V1G0DAJC6ZF
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	02h33m04s.60
RA (top/left)	02h37m22s.27
RA (top/right)	02h49m03s.50
RA (bottom/right)	02h28m08s.62
RA (bottom/left)	02h18m19s.90

Dec (center)	+61°33′06″.1
Dec (top/left)	+59°24′25″.0
Dec (top/right)	+62°44′03″.6
Dec (bottom/right)	+63°41′11″.3
Dec (bottom/left)	+60°15′40″.10

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SH2-190 | The Heart Nebula

SH2-190 | The Heart Nebula

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SH2-190 | The Heart Nebula

SH2-190 | The Heart Nebula

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