M31 - The Andromeda Galaxy - RGB 3x3 HD mosaic (patrice_so)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: Andromeda Galaxy · M 110 · M 31 · M 32 · NGC 205 · NGC 221 · NGC 224

M31 - The Andromeda Galaxy - RGB 3x3 HD mosaic, patrice_so

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M31 - The Andromeda Galaxy - RGB 3x3 HD mosaic

Revision title: Background adjustment

Powered byPixInsight

M31 - The Andromeda Galaxy - RGB 3x3 HD mosaic

Revision title: Background adjustment

This 3x3 mosaic of M31 is my largest project so far. The 9 panels total 24.3 hours of exposure, using my ASI294MC and a uvircut filter. 486 files where stacked using SIRIL into the nine raw panels. The mosaic assembly was done using Pixinsight (image solver, mosaic by coordinates, trimming and photometric mosaic). Further processing was also done in Pixinsight. I am indeed very happy with this result. First it is one of my sharpest picture ever. Second, I started using Pixinsight only 48 days ago, including 12 days away from any computer. That was intense but there is no turning back.

Astrophotography is truly amazing. I would never have suspected that one can image nebulae pockets in a distant galaxy from his/her own balcony with amateur gear. This is just as wonderful as insane ! Here is a close up :

I do very much look foreward to capturing a 3x3 Ha mosaic and adding it to this image

What a great hobby !

Clear skies !

Original
Final
B

B

Title: Background adjustment

Description: This second version has a slightly darker background and the star layer is corrected accordingly. Detail is increased. In full resolution, nebulae pockets, both Ha and Oii, are clearly visible. That is incredible for me.

Uploaded: ...

ZWO ASI 294MC PRO

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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	Basic success
Started	...
Astrometry.net job	8378297
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M31 - The Andromeda Galaxy - RGB 3x3 HD mosaic

Revision title: Background adjustment

M31 - The Andromeda Galaxy - RGB 3x3 HD mosaic

Revision title: Background adjustment

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Image Index:

Contribution Index (beta):

M31 - The Andromeda Galaxy - RGB 3x3 HD mosaic

Revision title: Background adjustment

M31 - The Andromeda Galaxy - RGB 3x3 HD mosaic

Revision title: Background adjustment

Equipment

Acquisition details

Description

Comments

Revisions

B

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