M104 -- The Sombrero Galaxy (jimwgram)

Celestial hemisphere: Southern · Constellation: Virgo (Vir) · Contains: M 104 · NGC 4594 · Sombrero Galaxy

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M104 -- The Sombrero Galaxy

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M104 -- The Sombrero Galaxy

Preview of one of my current projects and favorite galaxies: M104, the Sombrero Galaxy.

It's unfortunate that this year's Galaxy Season in southern California is also the season of somewhat earlier than normal marine layer fog and low-level clouds, leaving us with few clear nights over the last couple of weeks. There have been at least three or four nights which looked like they were going to be clear, but clouds rolled in before midnight. Two nights I had to throw away hours of data, when I left the scope all night only to wake up and find we were in the middle of a fog bank! And one night in which the sky stayed clear, I forgot to plug in the dew heater! :-P

Anyway, fairly satisfied with this initial attempt with (so far) only 94 one-minute subs. At least three earlier attempts were either completely unsuccessful or resulted in less than optimal data. Hoping for clear skies within the next couple of weeks so I can pile on some more details.

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
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	4446605
PixInsight job	2TKJ75KUN5GU3GPCNHZD2IPW67M7ZHKX
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h39m59s.426
RA (top/left)	12h39m56s.541
RA (top/right)	12h39m16s.524
RA (bottom/right)	12h40m02s.314
RA (bottom/left)	12h40m42s.298

Dec (center)	-11°37′32″.91
Dec (top/left)	-11°25′58″.92
Dec (top/right)	-11°42′26″.13
Dec (bottom/right)	-11°49′07″.45
Dec (bottom/left)	-11°32′39″.37

Image Index:

Contribution Index (beta):

M104 -- The Sombrero Galaxy

M104 -- The Sombrero Galaxy

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M104 -- The Sombrero Galaxy

M104 -- The Sombrero Galaxy

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