IC1805 (Heart Nebula) in HOO (JDJ)

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

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IC1805 (Heart Nebula) in HOO

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IC1805 (Heart Nebula) in HOO

Imaged the Heart Nebula (IC 1805) in narrowband over the course of five nights in January/February 2021.

Imaged with WO GT81 at F4.7 (382 mm focal length) using Flat6A II field flattener/0.8x reducer, Optolong L-Enhance dual narrowband filter, and full spectrum modified Nikon D5300. Total integration time of ~11 hours: 112 subs at ISO400x360 sec.

Original version = HOO image

Rev B = starless HOO image

Pre-processed using PixInsight Batch Pre-Processing (BPP) script. Images calibrated using darks, flats, and flat darks. Extracted red/green/blue channels using BatchChannelExtraction script. R and G+B channels registered and stacked using StarAlighment and Integration. R and G+B channels individually post-processed in Pixinsight. Initial processing: Cropped, gradient removal with ABE and noise reduction using the EZ Processing Suite for PixInsight EZ Denoise script. Additional post-processing in Pixinsight: mastked stretch, curves transformation, HDR transformation, and morphological transformation.

Starting with individually processed Ha and OIII images generated the HOO pallette image using the following steps in PI:

(1) Used Linearfit to equalize the images (using Ha as the reference)

(2) Used the SHO-AIP script to generate the HOO image (Ha for luminance, R=Ha, G=OIII, B=OIII)

(3) Color saturation boost

Starless version generated using PixInsight starnet process.

Final
Original
B

B

Description: Starless HOO image

Uploaded: ...

Nikon Imagers
The refractors!
Cloudy Nights
DSLR narrowband
Suburban Astrophotography
Optolong L-eNhance filter

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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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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Advanced success
Started	...
Astrometry.net job	4599097
PixInsight job	SSGUNAAEV54TYORVQIODF96Q9HJBCDE1
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	02h32m17s.30
RA (top/left)	02h44m46s.64
RA (top/right)	02h17m45s.90
RA (bottom/right)	02h20m43s.74
RA (bottom/left)	02h46m02s.87

Dec (center)	+61°26′04″.10
Dec (top/left)	+62°37′55″.2
Dec (top/right)	+62°14′18″.2
Dec (bottom/right)	+60°10′09″.5
Dec (bottom/left)	+60°32′15″.0

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IC1805 (Heart Nebula) in HOO

IC1805 (Heart Nebula) in HOO

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IC1805 (Heart Nebula) in HOO

IC1805 (Heart Nebula) in HOO

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