Leo Triplet (Richard Beck)

Celestial hemisphere: Northern · Constellation: Leo (Leo) · Contains: IC 2708 · IC 2745 · Leo Triplet · M 65 · M 66 · NGC 3623 · NGC 3627 · NGC 3628

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Leo Triplet

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Leo Triplet

The clouds parted enough to image the Leo Triplet (M65, M66 and NGC 3628), but they wouldn't stay out of the way long enough to get all the images the same night :-(.

--- from Wikipedia ---

M65 is an intermediate spiral galaxy ~35 million light years from the earth. The galaxy is low in dust and gas, and there is little star formation in it, although there has been some relatively recently in the arms. The ratio of old stars to new stars is correspondingly quite high. In most wavelengths it is quite uninteresting, though there is a radio source visible in the NVSS, offset from the core by about two arc-minutes. The identity of the source is uncertain, as it has not been identified visually, or formally studied in any published papers.

M66 has a morphological classification of SABb, indicating a spiral shape with a weak bar feature and loosely wound arms. The isophotal axis ratio is 0.32, indicating that it is being viewed at an angle. M66 is receding from us with a heliocentric radial velocity of 696.3±12.7 km/s. It lies 31 million light-years away and is about 95 thousand light-years across with striking dust lanes and bright star clusters along sweeping spiral arms.

NGC 3628, also known as the Hamburger Galaxy or Sarah's Galaxy, is an unbarred spiral galaxy about 35 million light-years away in the constellation Leo. It was discovered by William Herschel in 1784. It has an approximately 300,000 light-years long tidal tail.

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Distribution of astrophotographers

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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	3351547
PixInsight job	YM8LUQQ35O83V6TY16X97UE88KPQGJCV
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	11h19m45s.29
RA (top/left)	11h17m56s.73
RA (top/right)	11h17m54s.68
RA (bottom/right)	11h21m33s.17
RA (bottom/left)	11h21m36s.40

Dec (center)	+13°17′24″.4
Dec (top/left)	+13°56′14″.9
Dec (top/right)	+12°38′57″.9
Dec (bottom/right)	+12°38′31″.6
Dec (bottom/left)	+13°55′47″.6

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Leo Triplet

Leo Triplet

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Leo Triplet

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