NGC 4725 & Friends: This Is Not F/2! (estabrook)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: HD111813 · HD111842 · HD111878 · NGC 4712 · NGC 4725 · NGC 4747

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NGC 4725 & Friends: This Is Not F/2!

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NGC 4725 & Friends: This Is Not F/2!

As I put my Askar FRA500 into action this spring, I was inspired by Mike Feigenbaum's beautiful image of NGC 4725, a fascinating target with which I was unfamiliar. Although my rig is better suited to wider-field targets, I decided that NGC 4725 and its neighbors were too enticing to pass up. I went after them for 9 hours spread across 3 uneven nights during a long-lasting stretch of poor conditions. After that third night, it was clear that I wasn't shooting at f/2 anymore--I'd need a fourth night, and perhaps a fifth or sixth. Alas, the weather did not provide one until after these target were out of reach. But I'll surely revisit them and add to this image next year!

Broadband under Bortle 7/8/9
The OSC Club (One Shot Camera)
ZWO ASI183/QHY183
Light Polluted skies
Optolong L-Pro filter
NOVAC

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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	8333008
PixInsight job	JVF13JZ3FFPB1HMVL2QFYVUOLJZJNCO5
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h50m48s.610
RA (top/left)	12h53m40s.153
RA (top/right)	12h48m31s.532
RA (bottom/right)	12h47m56s.791
RA (bottom/left)	12h53m03s.564

Dec (center)	+25°34′04″.74
Dec (top/left)	+25°51′12″.51
Dec (top/right)	+26°03′17″.35
Dec (bottom/right)	+25°16′43″.66
Dec (bottom/left)	+25°04′45″.99

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NGC 4725 & Friends: This Is Not F/2!

NGC 4725 & Friends: This Is Not F/2!

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Image Index:

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NGC 4725 & Friends: This Is Not F/2!

NGC 4725 & Friends: This Is Not F/2!

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