Markarian Chain - LRGB (Rodolphe Goldsztejn)

Celestial hemisphere: Northern · Constellation: Virgo (Vir) · Contains: IC 3280 · IC 3303 · IC 3355 · IC 3363 · IC 3388 · IC 3393 · M 84 · M 86 · NGC 4374 · NGC 4387 · NGC 4388 · NGC 4402 · NGC 4406 · NGC 4407 · NGC 4413 · NGC 4425 · NGC 4435 · NGC 4438 · NGC 4458 · NGC 4461 · PGC 1412894 · PGC 1417787 · PGC 1421575 · PGC 165169 · PGC 165180 · PGC 165181 · PGC 169222 · PGC 169226 · PGC 169237 · PGC 169238 · And 84 more.

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Markarian Chain - LRGB

Revision title: Decreased the yellow bias

Powered byPixInsight

Markarian Chain - LRGB

Revision title: Decreased the yellow bias

[English]
This image was more complex to process than its appearance might suggest.
There are several methods for performing histogram stretching, and many scripts are available in PixInsight... but ultimately, only the approach with MaskedStretch on the RGB yielded good results.
Two cloudless nights (which have become increasingly rare lately!) allowed for capturing individual exposures, with autoguiding leading to RMS values close to 0.3", also an exceptional result around here.
I hope you enjoy this image, thank you for visiting.

[Français]
Cette image a été plus complexe à traiter que son apparence ne laisse croire.
Il existe plusieurs méthodes pour effectuer la montée d'histogramme, de nombreux scripts sont disponibles dans PixInsight... mais finalement, seule l'approche avec MaskedStretch sur le RGB a donné de bons résultats.
Deux nuits sans nuages (ce qui devient rarissime ces dermiers temps!) ont permis de capturer les poses individuelles, avec un autoguidage conduisant à des valeurs proches de 0,3" RMS, également un résultat exceptionnel par ici.
J'espère que cette image vous plaira, merci pour votre visite.

Original
B
C
D
Final
E

B

Title: Focus on Markarian's Eyes, M84 and M86

Uploaded: ...

C

Title: Full field, star colors corrected

Uploaded: ...

D

Title: Full field capture

Uploaded: ...

E

Title: Decreased the yellow bias

Uploaded: ...

Please note: The following tables are updated every 24 hours.

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	Distinct awarded users	Total awarded images
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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
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Distribution of data sources

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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
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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	9693706
PixInsight job	QBQ9HOAVY5L6VWZ9QB7CC6V7RHM5ZC7F
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h26m52s.22
RA (top/left)	12h24m13s.45
RA (top/right)	12h29m31s.50
RA (bottom/right)	12h29m32s.10
RA (bottom/left)	12h24m13s.16

Dec (center)	+12°56′27″.4
Dec (top/left)	+12°31′29″.4
Dec (top/right)	+12°31′18″.8
Dec (bottom/right)	+13°21′27″.9
Dec (bottom/left)	+13°21′33″.8

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Markarian Chain - LRGB

Revision title: Decreased the yellow bias

Markarian Chain - LRGB

Revision title: Decreased the yellow bias

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Image Index:

Contribution Index (beta):

Markarian Chain - LRGB

Revision title: Decreased the yellow bias

Markarian Chain - LRGB

Revision title: Decreased the yellow bias

Equipment

Acquisition details

Description

Comments

Revisions

B

C

D

E

Sky plot

Histogram

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