NGC4559 ( tommy_nawratil )

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: NGC 4559

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NGC4559

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NGC4559

Imaging Telescopes Or Lenses: 10" f/4 (Lacerta Photonewton)
Imaging Cameras: ZWO ASI1600MM COOL
Mounts: AZ-EQ6
Filters: Astronomik LRGB 31mm
Accessories: Lacerta MGEN-3 standalone autoguider · Skywatcher/Lacerta GPU comacorrector
Software: Adobe Photoshop · Distinct Solutions Ltd Astro Photography Tool (APT) · Pleiades Astrophoto PixInsight
Guiding Telescopes Or Lenses: Lacerta Guidescope32

Dates:: April 21, 2020
Frames:: 263×180″(13h 9′)
Integration:: 13h 9′
Avg. Moon age:: 28.08 days
Avg. Moon phase:: 2.35%

RA center: 12h35m57s.493

DEC center: +27°57′29″.64

Pixel scale: 0.891 arcsec/pixel

Orientation: 0.473 degrees

Field radius: 0.198 degrees

More info:Open

Resolution: 1276x964

File size: 770.1 KB

Data source: Backyard

This rather bright spiral is located in Coma Berenice, north of the Needle and south of the Whale.

Its distance is given with 35*10E6 lightyears, the bulge and bar are not pronounced in this SBcd type, but there is a lot of detail like HII regions and blue star knots in the arms resolved. The field harbours many distant galaxies and galaxy clusters. A rewarding target deserves more attention among its neighbours IMHO.

LRGB with Lacerta 10" f/4 and ASI1600MMP at gain Zero, with Astronomik Deepsky RGB filters. AZ-EQ6 guided by Mgen-3.

Final
Original
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C

B

Description: full field

Uploaded: ...

C

Description: annotated version

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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

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.
Dismissals 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	3559930
PixInsight job	V18GIGBF3JHK5I6O0H5BVIESCPMX445P
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h35m57s.493
RA (top/left)	12h36m40s.691
RA (top/right)	12h35m14s.827
RA (bottom/right)	12h35m14s.356
RA (bottom/left)	12h36m40s.360

Dec (center)	+27°57′29″.64
Dec (top/left)	+28°04′33″.81
Dec (top/right)	+28°04′43″.17
Dec (bottom/right)	+27°50′24″.67
Dec (bottom/left)	+27°50′15″.27

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