California Nebula (NGC 1499) (Chris Gnam)

Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: 46 Per) · 46 ksi Per · California Nebula · HD24747 · HD25152 · HD25308 · HD25329 · HD275959 · HD275963 · HD275964 · HD276003 · HD276005 · HD276006 · HD276008 · HD279140 · HD279141 · HD279142 · HD279143 · HD279146 · HD279147 · HD279148 · HD279149 · HD279153 · HD279154 · HD279214 · HD279215 · HD279216 · HD279217 · HD279218 · HD279219 · And 80 more.

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California Nebula (NGC 1499)

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California Nebula (NGC 1499)

I finally got some time recently to get outside and image, and the weather just hasn't bee cooperating. Last night was the first clear night in awhile and I was able to get a little over 5 hours of imaging in. Not great, but I'm glad I was at least able to get something! I also got only a few minutes on Oiii as there's virtually no structure in Oiii visible for this target, but I regret that decision as it introduced noise in the processing, leading to choosing a somewhat odd mixture when combining the channels.

Processing Details:
PixInsight:

WeightedBatchPreprocessing (Calibration, Registration, and Stacking)
DynamicBackgroundExtractor
ScreenTransferFunction + HistogramTransformation (Stretching)
PixelMath (.9*Ha + .1*Sii -> R | .3*Ha + .1*Oiii + .6*Sii -> G | .2*Ha + .4*Oiii + .4*Sii -> B)
TGVDenoise

LightRoom:

Increase in vibrance/saturation
Boost contrast
Noise reduction and Color Noise reduction
Slightly bumped Dehaze
Crop

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Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
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.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
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	8837795
PixInsight job	WGQWB91E668W8RI9FLSJ4P3814DG57NY
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	04h01m07s.90
RA (top/left)	04h09m02s.99
RA (top/right)	03h58m24s.46
RA (bottom/right)	03h53m10s.61
RA (bottom/left)	04h03m43s.57

Dec (center)	+36°32′19″.2
Dec (top/left)	+36°26′13″.9
Dec (top/right)	+38°02′29″.9
Dec (bottom/right)	+36°36′26″.8
Dec (bottom/left)	+35°01′56″.2

Image Index:

Contribution Index (beta):

California Nebula (NGC 1499)

California Nebula (NGC 1499)

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Image Index:

Contribution Index (beta):

California Nebula (NGC 1499)

California Nebula (NGC 1499)

Equipment

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Description

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Sky plot

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