Leo Quartet - Hickson 44 (James Hawks)

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

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Leo Quartet - Hickson 44

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Leo Quartet - Hickson 44

This a group of if galaxies in the constellation of Leo. They are approximately 80 to 100 million light years away. The two spiral galaxies in the center of the cropped image are edge-on NGC 3190 with its distinctive dust lanes, and S-shaped NGC 3187. The bright elliptical galaxy on the bottom center is NGC 3193 the spiral in the upper right is NGC 3185.

Acquisition:
   Location: Queen Creek, AZ Bortle 7
   Date: 2022-03-11 - 2022-03-23
   Lights (Dithered, Cooled 0°C, Gain 100):
       449 x 120s
   Darks: 25
   Flats: 25
   Dark Flats: 25

Hardware:
   Camera: ZWO ASI 2600MC PRO
   Scope: Celestron EdgeHD 11"
   Focal Reducer: Celestron 0.7x
   Focuser: Prodigy Microfocuser
   Guide Camera & Scope: Unguided
   Mount: GM2000 HPS II
   Filter: Astrodon UV-IR Cut

Software:
   SGP
   APP
   Pixinsight
   Photoshop

Processing:
   Stacked in APP
   Pixinsight (DCrop, ABE, PhotometricCC, EZDenoise, EZSoftStretch, EZStarReduction, StarNet2))
   Gradient removal using GradientXterminator
   Camera Raw Filter in Photoshop
   AstroFlat Pro
   Color/Levels Adjustments

N.I.N.A. 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	5627538
PixInsight job	QDAQH1SG1CLS7M0ZT9UU4GWZBGTGOJG6
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	10h17m59s.253
RA (top/left)	10h17m15s.680
RA (top/right)	10h17m19s.860
RA (bottom/right)	10h18m42s.683
RA (bottom/left)	10h18m39s.870

Dec (center)	+21°50′51″.70
Dec (top/left)	+22°06′31″.80
Dec (top/right)	+21°34′39″.51
Dec (bottom/right)	+21°35′12″.56
Dec (bottom/left)	+22°07′06″.66

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Contribution Index (beta):

Leo Quartet - Hickson 44

Leo Quartet - Hickson 44

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Contribution Index (beta):

Leo Quartet - Hickson 44

Leo Quartet - Hickson 44

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