Trillions of Stars: Markarian's Chain LRGB (Aaron Freimark)

Celestial hemisphere: Northern · Constellation: Virgo (Vir) · Contains: IC 3280 · IC 3303 · IC 3344 · IC 3355 · IC 3363 · IC 3382 · 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 4446 · NGC 4447 · NGC 4458 · NGC 4459 · NGC 4461 · NGC 4468 · NGC 4473 · NGC 4474 · NGC 4477 · NGC 4479 · And 1 more.

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Trillions of Stars: Markarian's Chain LRGB

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Trillions of Stars: Markarian's Chain LRGB

Dozens of galaxies containing trillions of stars.

My light-polluted skies have made me reluctant to shoot in RGB. But we can fix anything in post, right?

1. Preprocessing: WeightedBatchProcessing (Calibrate only), Subframe Selector, initial crop, Image Registration, Local Normalization, Image Integration, Drizzle Integration

2. Dynamic Crop

3. Dynamic Background Extraction

4. EZ Denoise

5. LinearFit R and B to G

6. ChannelCombination RGB

7. Dynamic Background Extraction (again)

8. Photometric Color Calibration

9. EZ Soft Stretch

10. L: Arcsinh Transformation

11. LRGB Combination

12. Curves Transformation

13. Final crop

Mid-Hudson Astronomical Association (MHAA)
Northeast Imagers
INDI Users

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	4308758
PixInsight job	E23N545PND0C68G44OMA6MQCU7JWCAX5
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h27m17s.54
RA (top/left)	12h30m27s.26
RA (top/right)	12h23m39s.70
RA (bottom/right)	12h24m08s.47
RA (bottom/left)	12h30m54s.23

Dec (center)	+13°18′08″.7
Dec (top/left)	+14°09′43″.6
Dec (top/right)	+14°02′51″.9
Dec (bottom/right)	+12°26′09″.0
Dec (bottom/left)	+12°33′03″.4

Image Index:

Contribution Index (beta):

Trillions of Stars: Markarian's Chain LRGB

Trillions of Stars: Markarian's Chain LRGB

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Description

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Sky plot

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Image Index:

Contribution Index (beta):

Trillions of Stars: Markarian's Chain LRGB

Trillions of Stars: Markarian's Chain LRGB

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

Notifications

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IOTD/TP stats (last [x] days)

Distribution of astrophotographers

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Distribution of data sources

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