M65, M66, NGC3628 (Leo Trio); Leo (Thomas V. Davis)

Celestial hemisphere: Northern · Constellation: Leo (Leo) · Contains: IC 2684 · IC 2694 · IC 2704 · IC 2708 · IC 2745 · IC 2752 · IC 2762 · IC 2782 · IC 2787 · Leo Triplet · M 65 · M 66 · NGC 3623 · NGC 3627 · NGC 3628

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M65, M66, NGC3628 (Leo Trio); Leo

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M65, M66, NGC3628 (Leo Trio); Leo

Leo Trio or Triplet M65, M66, NGC3628; Leo

Astro-Physics 305mm f/3.8 Riccardi-Honders astrograph

KAF-16803; FLI Proline

Total Exposure Time: 3.9+ hours; LRGB 160:25:25:25 RGB binned 2x2

May 2012; Inkom, ID

Comments: This image shows the famous trio or "triplet" of galaxies in the spring (northern hemisphere) constellation of Leo. Of note is the tidal star stream near NGC3628. This is generally considered to be difficult to image particularly with any detail. If you are having trouble seeing it on your monitor, try shifting your head to the right side of your monitor then look back at the image. This little "trick" can help bring out subtle image details on your monitor, depending of which type your have. You may also need to calibrate your monitor's settings. The background data of this image has been stretched so to better show the tidal stream.

Also of note is the tidal interaction between the galaxies that has distorted the galactic disk of M66. This appears as a warped galactic disk.

This image was NASA APOD July 6, 2012.

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
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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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Star trails
Northern lights
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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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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	2099100
PixInsight job	3GRPBWCNK1UY3N6K9UL83NYYT3L539ZI
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	11h20m07s.36
RA (top/left)	11h16m24s.51
RA (top/right)	11h16m24s.37
RA (bottom/right)	11h23m47s.96
RA (bottom/left)	11h23m52s.27

Dec (center)	+13°14′29″.1
Dec (top/left)	+14°08′16″.8
Dec (top/right)	+12°20′56″.5
Dec (bottom/right)	+12°20′12″.1
Dec (bottom/left)	+14°07′45″.1

Image Index:

Contribution Index (beta):

M65, M66, NGC3628 (Leo Trio); Leo

M65, M66, NGC3628 (Leo Trio); Leo

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Image Index:

Contribution Index (beta):

M65, M66, NGC3628 (Leo Trio); Leo

M65, M66, NGC3628 (Leo Trio); Leo

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Acquisition details

Description

Comments

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