California Nebula (Anthony Glas)

Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: 46 Per) · 46 ksi Per · California Nebula · HD24664 · HD24747 · HD25152 · HD25308 · HD25329 · HD275963 · HD279140 · HD279141 · HD279142 · HD279143 · HD279146 · HD279147 · HD279148 · HD279149 · HD279150 · HD279153 · HD279154 · HD279156 · HD279158 · HD279214 · HD279215 · HD279216 · HD279217 · HD279218 · HD279219 · HD279221 · HD279222 · And 99 more.

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California Nebula

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California Nebula

California Nebula
I wanted to take an HaRGB image, and I figured the California Nebula would be an excellent target, especially during this time of the year.
In processing this I combined the RGB images and used Ha as luminance. I approached this using starless processing techniques (Jimmy's guide).
If you recall my really funky stars from my previous images, BlurX v4 has really done some excellent work to fix my corner stars, I'll still be messing around with backfocus to see if I can get better stars before processing. I noticed that the vertical bands I had in my other images are not present in this one, the only variable that changed was switching from using sheets of paper to a t-shirt between my flat panel, quite strange, but its much better now!
Imaged from a Bortle 5 area; acquisition using NINA; processed in PI.

Acquisition:
47 x 300s Ha
47 x 60s R
47 x 60s G
47 x 60s B
6h 16m total

Equipment:
EQ6-R Pro
William Optics GT81 w/ 6AIII flattener
QHY163M w/ Antlia 3nm SHO & Antlia V-Series LRGB

Processing:
WBPP
DBE
BlurX
Combined RGB
StarXTerminator
Prepared Ha as luminance (stretched)
LRGB Combination
HistogramTransformation
CurvesTransformation
Noise reduction & sharpening (NoiseX, MultiscaleLinearTransform)
Star addition using PixelMath (https://www.nightphotons.com/guides/star-addition)
DarkStructureEnhance
Final color corrections

Please note: The following tables are updated every 24 hours.

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	8908963
PixInsight job	V5VHVV0ADFHNH2BHSGNCK3YGN3KQW5N7
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	04h01m15s.31
RA (top/left)	03h53m24s.90
RA (top/right)	04h01m24s.85
RA (bottom/right)	04h09m01s.50
RA (bottom/left)	04h01m05s.28

Dec (center)	+36°15′51″.5
Dec (top/left)	+36°39′53″.6
Dec (top/right)	+34°38′12″.1
Dec (bottom/right)	+35°49′56″.6
Dec (bottom/left)	+37°53′33″.5

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California Nebula

California Nebula

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Image Index:

Contribution Index (beta):

California Nebula

California Nebula

Equipment

Acquisition details

Description

Comments

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