SH2 224

Celestial hemisphere: Northern · Constellation: Auriga (Aur) · Contains: 20 Aur · 20 rho Aur · HD277995 · HD277996 · HD277998 · HD277999 · HD278000 · HD278001 · HD278003 · HD278004 · HD278005 · HD278006 · HD278007 · HD278009 · HD278010 · HD278011 · HD278012 · HD278013 · HD278014 · HD278015 · HD278016 · HD278017 · HD278018 · HD278019 · HD278020 · HD278022 · HD278023 · HD278024 · HD278025 · HD278028 · And 60 more.

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SH2 224

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SH2 224

This was the primary target of my first use of a narrowband filter in dark skies. I was very happy at the level of data for Oiii that came through.

Astro Pixel Processor was used to stack, remove gradients, and extract Oiii, Ha, and Luminence into separate tiff files. A normal stack was also created to be used to create a stars-only version with the full range of color permitted through the dual-narrowband filter used (Ha & Oiii).

The stars were removed from all stack variations with StarNet++ v2. Then each starless version was run through Topaz DeNoise.

Using layers, Gimp was used to create a stars-only image by subtracting the starless HO image from the HO version with stars. Color adjusting was done to compensate for the lack of full spectrum color data, to improve the aesthetics of the stars.

Then the Ha and Oiii variants were loaded as layers in Gimp. Ha was colorized as red, Oiii as blue. The Oiii layer was duplicated as a 3rd layer and colorized green. I gained a bit more experience in Gimp to get to this result; there are always new techniques to learn and improve on.

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	6963398
PixInsight job	YIENUC7T1OKOZTS01V4R9KN2BDQUYWMD
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h26m21s.37
RA (top/left)	05h21m02s.99
RA (top/right)	05h20m22s.65
RA (bottom/right)	05h31m54s.56
RA (bottom/left)	05h32m06s.90

Dec (center)	+42°56′31″.2
Dec (top/left)	+41°34′26″.6
Dec (top/right)	+44°13′50″.8
Dec (bottom/right)	+44°17′40″.9
Dec (bottom/left)	+41°37′58″.9

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SH2 224

SH2 224

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Image Index:

Contribution Index (beta):

SH2 224

SH2 224

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Comments

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