M31 in RGB (Thorsten Glebe)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: 35 And · Andromeda Galaxy · M 110 · M 31 · M 32 · NGC 205 · NGC 221 · NGC 224 · The star ν And

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M31 in RGB

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M31 in RGB

This is the Andromeda galaxy M31 taken with the Takahashi Epsilon 160ED scope and my OSC imaging train during two moonless nights with very good guiding (looks like the latest software update of the ASIAIR brought some improvements).

For the processing in Pixinsight I further enhanced the ColorMask script. As the script works with HSI readout data, I also added the capability to select saturation ('S' in HSI). Additionally I added an "inverse lightness" mask mode.

With the new capabilities added, very sophisticated masks can be created, here e.g. the color mask I created for the "yellow" color range:

In order to pick the right numbers for hue, saturation and intensity, set the readout data in Pixinsight to 'HSI':

In case you might want to try out the script, you can download it here:
ColorMaskTG.js

Enjoy!

Final
Original
C

C

Title: Cutout - Core Region of M31

Description: This is a cutout of the central part of the image. The ZWO ASI6200MC Pro yields a lot of details which you can better see if you are zoomed in.

Uploaded: ...

Takahashi Epsilons
Messier Objects
ZWO ASIAIR PRO USERS
Suburban Astrophotography
The OSC Club (One Shot Camera)
PixInsight Addicts
Cooled Color Cams
IOptron CEM
Light Polluted skies
Fast Newtonians
CMOS Imagers
Astrophotography Germany

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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.
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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	6368184
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M31 in RGB

M31 in RGB

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Image Index:

Contribution Index (beta):

M31 in RGB

M31 in RGB

Equipment

Acquisition details

Description

Comments

Revisions

C

Sky plot

Histogram

In these public groups

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