M104 Sombrero Galaxy (niteman1946)

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

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M104 Sombrero Galaxy

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M104 Sombrero Galaxy

M104 is an unbarred spiral galaxy in the constellation Virgo located 28 million light years from Earth. It has a bright nucleus, an unusually large central bulge, and a prominent dust lane in its inclined disk. Known as the Sombrero Galaxy, M104 was discovered in March 1767 by Pierre Méchain, and officially listed as M104 in 1921. (Source Wikipedia).

Used the Meade 12"LX200 at F7.5. Employed 113 subs at ISO1600 and 5 minutes each (9.42hr) on 4/17 (34), 4/18 (23), 4/20 (21), and 4/21 (35). Processing was done with PixInsight. This is a slight crop -- North is up. This is intended as the final image.

Used an additional 100 subs at ISO1600 and 30s each(0.83hr) with PI's HDR Composition tool to tease a little more info out of the galaxy's center. Not sure this helped much.

Overall, I'm fairly satisfied with the results.

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	Basic success
Started	...
Astrometry.net job	6699185
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M104 Sombrero Galaxy

M104 Sombrero Galaxy

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M104 Sombrero Galaxy

M104 Sombrero Galaxy

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