M57, the Ring Nebula, LRGB (AnaTa)

Celestial hemisphere: Northern · Constellation: Lyra (Lyr) · Contains: IC 1296 · M 57 · NGC 6720 · Ring Nebula

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M57, the Ring Nebula, LRGB

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M57, the Ring Nebula, LRGB

This is LRGB image. Panels show just magnifications from different images. It is sort of lucky imaging, but seeing was not perfect.
HOO image to come.

Processing:
Cropping for R, G, B and Lum, as well as Ha and O3
DBE for R, G, B and Lum, as well as Ha and O3
Blur and Noise XT for R, G, B and Lum, as well as Ha and O3
Manual stretching (with HT) for R, G, B and Lum, as well as Ha and O3
LRGB combination
Star XT. These LRGB stars have been kept for addition at the end[i].[/i]

Star XT separately for R, G and B
Combined RGB in Pixel-Math
Formula
Red: 1.3*R-0.5*G
Green: 0.6*G+0.4*R
Blue: 0.9*B

Simple Lum mask
Local Histogram Equalization: Kernel radius of 40 and 100
Multiscale-median transform for sharpness, setting 0.3
Curves: saturation, hue and brightness are manipulated.
Mask off.

Saturated and reduced RGB stars are added.
Star Reduction (new script)
Cropped for different magnifications
Done

Original
B
Final
C

Messier Catalog

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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	8224802
PixInsight job	PM0QE31AWYJGBN1CPPIPMYAK9ZG69DA1
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	18h53m34s.802
RA (top/left)	18h53m57s.821
RA (top/right)	18h53m57s.638
RA (bottom/right)	18h53m11s.750
RA (bottom/left)	18h53m11s.904

Dec (center)	+33°01′46″.97
Dec (top/left)	+32°56′59″.20
Dec (top/right)	+33°06′36″.57
Dec (bottom/right)	+33°06′34″.72
Dec (bottom/left)	+32°56′56″.75

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M57, the Ring Nebula, LRGB

M57, the Ring Nebula, LRGB

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Image Index:

Contribution Index (beta):

M57, the Ring Nebula, LRGB

M57, the Ring Nebula, LRGB

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Description

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In these collections

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