Leo Triplet (Luca Dinoi)

Celestial hemisphere: Northern · Constellation: Leo (Leo) · Contains: 73 Leo · IC 2763 · M 65 · M 66 · NGC 3623 · NGC 3627 · NGC 3628 · The star n Leo

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Leo Triplet

Link: https://flic.kr/p/2owDC9o

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Leo Triplet

Link: https://flic.kr/p/2owDC9o

Leo Triplet M66-M65-NGC3628 - Galaxies - Constellation Leo The Leo Triplet is composed of the spiral galaxies M66, M65 and NGC3628, they are in interaction with each other and a neutral hydrogen halo connects them, a sign of a close encounter that took place 800 million years ago. The triplet is about 35 million light years from us and is located in the constellation Leo. M66 the largest and brightest of the complex is also known as NGC3627 was discovered by Pierre Méchain in 1780. Quite easy to locate halfway between the stars θ Leonis and ι Leonis. In order to appreciate some of its details, it is necessary to have a telescope with an aperture of at least 150mm. Visible from both hemispheres, the best period for its observation is between February and August. M65 also known as NGC3623 was discovered by Pierre Méchain in 1780 at the same time as M66, Charles Messier described it as a very faint and starless nebula. 22 million light years away from us, it is estimated to have a diameter of about 70,000 light years and a mass equal to 85 billion solar masses. NGC3628 third component of the triplet is less luminous than the others, but very extensive, crossed in its length by a long luminous band, it is about 35 million light years from us, it was discovered in 1784 by William Herschel.

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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	Basic success
Started	...
Astrometry.net job	7624056
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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