NGC4565 (lowenthalm)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: IC 3571 · NGC 4562 · NGC 4565 · PGC 1760893 · PGC 1762205 · PGC 2793674 · PGC 3096166 · PGC 42038 · PGC 42060 · TYC1990-1038-1 · TYC1990-510-1 · TYC1990-977-1

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NGC4565

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NGC4565

Just got my new ZWO ASI294MC Pro dialed in tonight! Darks, flats and coma corrector all finally working. Quarter moon about 90 degrees away though, but still!

Seeing is pretty darn good tonight, so I had binning set to 1, so scale is 0.5 arc sec per pixel. 260 x 5 second exposures. Lots of little faint background galaxies down to fainter than 21st magnitude can be seen behind. I left it uncrossed as it came out of SharpCap.

Original
B
C
Final
D

B

Description: I realized my initially posted image was for viewing in a dark room! In the morning daylight, I realized I had to completely readjust it for daylight viewing on a computer monitor.

Uploaded: ...

C

Description: Improved color balance using some new image processing tools (GIMP). Also cropped out the worst of the vignette, from sky glow, but some still remains.

Uploaded: ...

D

Description: Went back to this image with Fitswork to remove the darn gradient from the reflected streetlight glow off the back of my house. A few touch ups and recrop now that the gradient is gone.

Uploaded: ...

Astrophotography with Dobson

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Galaxies - big!

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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
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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
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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	2026188
PixInsight job	488UXGNBT1N5D6VTUCY2WUBM6RQA99H7
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h36m03s.115
RA (top/left)	12h36m59s.322
RA (top/right)	12h34m40s.600
RA (bottom/right)	12h35m07s.340
RA (bottom/left)	12h37m26s.140

Dec (center)	+25°59′03″.58
Dec (top/left)	+26°14′04″.79
Dec (top/right)	+26°05′13″.40
Dec (bottom/right)	+25°43′57″.70
Dec (bottom/left)	+25°52′51″.20

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NGC4565

NGC4565

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NGC4565

NGC4565

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