M100, the Mirror Galaxy, LTBR-NIR (AnaTa)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: M 100 · NGC 4321 · NGC 4322 · NGC 4323 · NGC 4328

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M100, the Mirror Galaxy, LTBR-NIR

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M100, the Mirror Galaxy, LTBR-NIR

Image of M100, The Mirror Galaxy, was capered in LRGB + NIR (Sloan-i filter). NIR was used to "beat pollution".
Two panels are LRGB-NIR (Panel B) and LRGB-NIR annotation (Panel A)

Processing:
WBPP was used to combine all Lum and NIR frames. It is named LNIR.
R, G, B and LNIR were cropped.
GraExpert applied for R, G, B, and LNIR
RGB were combined.
DBE for RGB
Color calibration for RGB.
Blur and Noise XT for RGB and LNIR.
Star XT on RGB.
Manual stretching in HT for RGB-stars (moderate stretch), RGB and LNIR
LRGB-NIR was created by using LRGB-combined (RGB + LNIR).
Noise XT, stretch again.
Star XT. Stars are discarded.
Mask with Lum, which is enhanced with Curves.
LHE, Kernel radius 40 and 150, power 0.3
MMT sharp (0.02-0.04 setting)
Curve for saturation, hue and brightness adjustment for galaxy.
Curve for star saturation of RGB stars.
Added RGB stars to the Galaxy (Panel B).
Annotation (Panel A)
Done.

Original
Final
B

Messier Objects

Messier Catalog

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	9638471
PixInsight job	6YV558XB4UTP4L3QN5P55QD68XMXH1SZ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h22m53s.899
RA (top/left)	12h22m16s.484
RA (top/right)	12h23m31s.484
RA (bottom/right)	12h23m31s.391
RA (bottom/left)	12h22m16s.275

Dec (center)	+15°49′25″.92
Dec (top/left)	+15°40′23″.22
Dec (top/right)	+15°40′25″.27
Dec (bottom/right)	+15°58′28″.56
Dec (bottom/left)	+15°58′26″.42

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Contribution Index (beta):

M100, the Mirror Galaxy, LTBR-NIR

M100, the Mirror Galaxy, LTBR-NIR

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Image Index:

Contribution Index (beta):

M100, the Mirror Galaxy, LTBR-NIR

M100, the Mirror Galaxy, LTBR-NIR

Equipment

Acquisition details

Description

Comments

Revisions

Sky plot

Histogram

In these public groups

In these collections

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