California Nebula at 85mm in Ha (JDJ)

Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: 14.12 · 38 omi Per · 41 nu. Per · 42 n Per · 44 zet Per · 445 Edna · 45 eps Per · 46 ksi Per · 49 Per · 50 Per · 52 f Per · 54 Per · Atik · B4 · B5 · California nebula · IC 2003 · IC 2005 · IC 2027 · IC 348 · IC 351 · Menkib · NGC 1465 · NGC 1499 · NGC 1514 · NGC 1548 · PK156-13.1 · PK159-15.1 · PK161-14.1 · PK165-15.1 · And 14 more.

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California Nebula at 85mm in Ha

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California Nebula at 85mm in Ha

This wide field image of the California Nebula (NGC1499) was captured on the nights of January 19/20/21, 2020 using a short telephoto lens and dual narrowband filter. This image is the H-alpha data from the red channel.

Imaged with 85mm/F1.4 Rokinon at F/2, STC Duo Narrowband Clip Filter, and full spectrum modified Nikon D5300.

Pre-processed using PixInsight Batch Pre-Processing (BPP) script. Images calibrated using darks, bias, and flats. Extracted red/green/blue channels using BatchChannelExtraction script. R, G, & B channels registered and stacked independently using StarAlighment and Integration. R channel data gives the Ha image. Averaged G & B channels using Pixelmath to generate OIII image. Total integration time of ~3 hours using 52 subs at ISO200x240 sec. R and Average of G+B channels individually post-processed in Pixinsight: Cropped, gradient removal with ABE, MLT for noise reduction, stretched using masked stretch, Curves Transformation, TGVDenoise for noise reduction, HDR transform, Local histogram transform, morphological transform to shrink stars.

Cloudy Nights
DSLR narrowband
Suburban Astrophotography
Camera Lens Astrophotography

85mm Rokinon

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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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Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	3216816
PixInsight job	SACFDGDI0W8I9NOP1AU6SEUXO4IQZH8V
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	04h02m10s.45
RA (top/left)	03h37m59s.99
RA (top/right)	03h44m18s.71
RA (bottom/right)	04h22m30s.90
RA (bottom/left)	04h23m36s.84

Dec (center)	+36°34′53″.3
Dec (top/left)	+43°05′59″.9
Dec (top/right)	+29°30′59″.2
Dec (bottom/right)	+29°48′39″.9
Dec (bottom/left)	+43°27′04″.7

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California Nebula at 85mm in Ha

California Nebula at 85mm in Ha

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California Nebula at 85mm in Ha

California Nebula at 85mm in Ha

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