M89-M90 (Kurt Zeppetello)

Celestial hemisphere: Northern · Constellation: Virgo (Vir) · Contains: IC 3475 · IC 3489 · IC 3492 · IC 3501 · IC 3540 · IC 3583 · IC 3586 · IC 3611 · M 89 · M 90 · NGC 4506 · NGC 4531 · NGC 4550 · NGC 4551 · NGC 4552 · NGC 4569 · NGC 4584

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M89-M90

Link: http://kurt-zeppetello.blogspot.com/2017/05/m89-m90.html

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M89-M90

Link: http://kurt-zeppetello.blogspot.com/2017/05/m89-m90.html

This image contains M89 and M90 captured on 5/16/17 as part of an ongoing project to image all 110 Messier objects with an ED80 refractor.

M89 (a.k.a NGC 4552) is an elliptical galaxy 50 million light-years from Earth in the constellation Virgo. M89 is unusual in that it appears perfectly spherical in shape while all other known elliptic galaxies are relatively elongated ellipsoids. M90 (a.k.a NGC 4569) is an intermediate spiral galaxy about 60 million light-years away also in the constellation Virgo. M90 is a member of the Virgo Cluster and one of its largest and brightest spiral galaxies, even brighter than the Andromeda Galaxy (source: wikipedia).

https://kurtzeppetello.smugmug.com/

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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	Advanced success
Started	...
Astrometry.net job	1593522
PixInsight job	WQ59QNKDSX88H1EMYP74QHB1AQFQIVXF
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h35m44s.16
RA (top/left)	12h39m27s.88
RA (top/right)	12h31m47s.37
RA (bottom/right)	12h32m01s.74
RA (bottom/left)	12h39m39s.84

Dec (center)	+12°49′16″.1
Dec (top/left)	+13°30′21″.3
Dec (top/right)	+13°25′40″.7
Dec (bottom/right)	+12°08′02″.4
Dec (bottom/left)	+12°12′35″.2

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M89-M90

M89-M90

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M89-M90

M89-M90

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