M106 (Walter Torres)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: M 106 · NGC 4231 · NGC 4232 · NGC 4248 · NGC 4258

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M106

Revision title: LRGBHa

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M106

Revision title: LRGBHa

Messier 106 is an intermediate spiral galaxy about 22 to 25 million light-years away from Earth. M106 contains an active nucleus, and the presence of a central supermassive black hole has been demonstrated from radio-wavelength observations of the rotation of a disk of molecular gas orbiting within the inner light-year around the black hole. *Wikipedia

This image is composed of 237 X 120sec LRGB subs, taken one after the other for consistency and dithered for noise management over two nights.

Stacked in DeepSkyStacker and calibrated with darks, flats, and dark flats.

PixInsight workflow:
Cropped all channels roughly 4% on each side
Dynamic Background Extraction on all channels
Stretched RGB channels with EZ Soft Stretch Script
Combined RGB with LRGB Combination
Background Neutralization
Photometric Color Calibration
Extracted L from RGB image
Reapplied L to RGB image with 0.350 Saturation X 3 times for color

Processed L Manually
Stretched with Histogram Transformation and Curves Transformation
Multiscale Linear Transform
Created star mask with StarNet2
EZ Star Reduction Script
NoiseXTerminator
Applied L to RGB image with Chrominance Noise Reduction

Photoshop workflow:
Camera Raw Filter
Color Mixer (Hue)
Oranges -30%
Yellows -30%
Greens -30%
Aquas +30%
Blues +30%
Purples -30%

Update: Added 5hrs of Ha almost a year after the first. It made a minute difference in some small areas.

Original
Final
C

C

Title: LRGBHa

Description: + 5hrs of Ha

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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	Basic success
Started	...
Astrometry.net job	7430366
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Contribution Index (beta):

M106

Revision title: LRGBHa

M106

Revision title: LRGBHa

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Image Index:

Contribution Index (beta):

M106

Revision title: LRGBHa

M106

Revision title: LRGBHa

Equipment

Acquisition details

Description

Comments

Revisions

C

Sky plot

Histogram

In these public groups

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