Hickson 44 - The Leo Quartet (Taman)

Celestial hemisphere: Northern · Constellation: Leo (Leo) · Contains: NGC 3185 · NGC 3187 · NGC 3189 · NGC 3190 · NGC 3193

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Hickson 44 - The Leo Quartet

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Hickson 44 - The Leo Quartet

Hickson 44, also known as the Leo Quartet.

This interesting group of galaxies is about 100 million light years away. The "S" shaped galaxy is NGC 3187 or ARP 316 from the Atlas of Peculiar Galaxies. It is being warped by gravitational interaction with other members of the group.

Due to the run of bad weather, I decided to try to "rescue" this image from 2021. The original flats had problems, so I used GraXpert to sort the background out and tight cropping to remove some of the overly bright stars. Hope to have another go at this with more exposure time and better calibration files next time!

Clear skies!

Tony.

Optolong L-Pro filter
CMOS Imagers
Arp's Peculiar Galaxies
Schmidt-Cassegrain Telescope (SCT) Imagers
Siril Enthusiasts
ZWO ASI 294MC PRO
The OSC Club (One Shot Camera)
UK Astro-Imaging
Imaged with APT
IOptron CEM

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	8245757
PixInsight job	M0A3D098Z2YBCH8C467I8IY1GS0VNE7K
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	10h18m08s.742
RA (top/left)	10h19m10s.610
RA (top/right)	10h17m07s.987
RA (bottom/right)	10h17m07s.442
RA (bottom/left)	10h19m09s.395

Dec (center)	+21°47′35″.20
Dec (top/left)	+21°56′47″.91
Dec (top/right)	+21°56′59″.99
Dec (bottom/right)	+21°38′19″.27
Dec (bottom/left)	+21°38′07″.24

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Hickson 44 - The Leo Quartet

Hickson 44 - The Leo Quartet

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Image Index:

Contribution Index (beta):

Hickson 44 - The Leo Quartet

Hickson 44 - The Leo Quartet

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