Elliptical Galaxy Messier 105 (M105) and Friends (Tom Wildoner)

Celestial hemisphere: Northern · Constellation: Leo (Leo) · Contains: M 105 · NGC 3379 · NGC 3384 · NGC 3389

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Elliptical Galaxy Messier 105 (M105) and Friends

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Elliptical Galaxy Messier 105 (M105) and Friends

The galaxies M105, NGC 3384 and NGC 3373 form a nice galactic triplet in the constellation Leo. M105 is the elliptical galaxy on the right of the image, NGC 3384 is the elliptical galaxy on the upper left and NGC 3373 is a spiral galaxy on the lower left. Magnitudes for these galaxies are 9.3 for M105, 10.0 for NGC 3384 and 11.8 for NGC 3373. The distance to these galaxies is roughly 30+ million light years.

Observation data (J2000 epoch) for M105
Constellation: Leo
Right ascension: 10h 47m 49.600s
Declination: +12° 34′ 53.87″
Distance: 36.6 Mly (11.22 Mpc)
Group or cluster: Leo I Group
Apparent magnitude (V): 9.3

Tech Specs: Orion 8" f/8 Ritchey-Chretien Astrograph Telescope, Celestron CGEM-DX pier mounted, ASI071MC-Pro, ZWO AAPlus, ZWO EAF, 160 x 60 seconds at -10C plus darks and flats, processed using DSS. Image Date: February 26, 2022. Location: The Dark Side Observatory (W95), Weatherly, PA, USA (Bortle Class 4).

Messier Objects

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Distribution of astrophotographers

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	Distinct awarded users	Total awarded images
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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
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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	6899897
PixInsight job	HW2ONNBDINM0L7D6GCPGMPXPAFJJET86
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	10h48m12s.580
RA (top/left)	10h49m15s.189
RA (top/right)	10h46m52s.504
RA (bottom/right)	10h47m09s.115
RA (bottom/left)	10h49m31s.538

Dec (center)	+12°34′45″.72
Dec (top/left)	+12°52′27″.76
Dec (top/right)	+12°47′56″.20
Dec (bottom/right)	+12°17′03″.28
Dec (bottom/left)	+12°21′34″.84

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Elliptical Galaxy Messier 105 (M105) and Friends

Elliptical Galaxy Messier 105 (M105) and Friends

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Image Index:

Contribution Index (beta):

Elliptical Galaxy Messier 105 (M105) and Friends

Elliptical Galaxy Messier 105 (M105) and Friends

Equipment

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