M81 in LRGB ( Cedric Raguenaud )

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: Bode's Galaxy · M 81 · NGC 3031

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M81 in LRGB

Link: http://raguenaud.space/2021/02/m81-en-lrvb/

Powered byPixInsight

M81 in LRGB

Link: http://raguenaud.space/2021/02/m81-en-lrvb/

Imaging Telescopes Or Lenses: Takahashi toa 130S
Imaging Cameras: SBIG STF-8300M
Mounts: WS240GT
Filters: Baader Green Filter 1.25" · Baader luminance 1.25" · Baader Blue Filter 1.25" · Baader Red Filter 1.25"
Accessories: ZWO EAF Focuser
Software: Pleiades Astrophoto PixInsight · Gimp 2.10
Guiding Telescopes Or Lenses: Skymeca 3" OAG
Guiding Cameras: ATIK TITAN

Dates:: Dec. 26, 2020 · Jan. 19, 2021 · Feb. 14, 2021 · Feb. 15, 2021 · Feb. 16, 2021 · Feb. 17, 2021 · Feb. 18, 2021 · Feb. 19, 2021
Frames:: Baader Blue Filter 1.25": 17×600″(2h 50′) -10°C bin 1×1
Baader Green Filter 1.25": 18×600″(3h) -10°C bin 1×1
Baader Red Filter 1.25": 23×600″(3h 50′) -10°C bin 1×1
Baader luminance 1.25": 42×600″(7h) -10°C bin 1×1
Integration:: 16h 40′
Avg. Moon age:: 5.86 days
Avg. Moon phase:: 35.15%
Bortle Dark-Sky Scale:: 3.00

RA center: 09h55m34s.43

DEC center: +69°04′04″.5

Pixel scale: 1.628 arcsec/pixel

Orientation: -6.420 degrees

Field radius: 0.586 degrees

More info:Open

Resolution: 2048x1586

File size: 4.0 MB

Locations: E-Eye Spain, Fregenal de la Sierra, Spain

Data source: Own remote observatory

Remote source: e-EyE Extremadura

The image were collected quickly between two targets when the moon was not too visible.

Data: NGCAT (http://ngc.astrophotography.team/)

Processing: Cedric Raguenaud (http://raguenaud.space/)

Entre Encinas y Estrellas (e-EyE)

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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
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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
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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
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Amateur hosting facility
Public amaeteur data
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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	4254950
PixInsight job	B8HYKW578R4LTDCAQLUP5VLP3H2JXLP3
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	09h55m34s.43
RA (top/left)	10h00m21s.66
RA (top/right)	09h49m53s.82
RA (bottom/right)	09h50m57s.68
RA (bottom/left)	10h01m05s.51

Dec (center)	+69°04′04″.5
Dec (top/left)	+69°28′19″.6
Dec (top/right)	+69°21′59″.2
Dec (bottom/right)	+68°39′22″.4
Dec (bottom/left)	+68°45′27″.6

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M81 in LRGB

M81 in LRGB

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M81 in LRGB

M81 in LRGB

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