M81 a LRHaGB-color picture (Niels V. Christensen)

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

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M81 a LRHaGB-color picture

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M81 a LRHaGB-color picture

M81 a LRHaGB-color picture from Denmark, Sjaelland area.

A kind of a crowd-imaging picture with few pictures/stacks integrated into one cropped color picture.

Contributers are:

Mr. Ole Berg Nielsen

Eq. used, Scope Celestron 9.25" Edge HD F6.7. Mount CGEM with usage of TDM and Pole Master, no autoguide. Camera Atik 383L+ mono.

Filters LRGB Ha (5 nm) Astrodon.

Exposure details & subs taken 23, 25 & 26 Febr-2018:

L=110x300sec bin1x1

R=47x60sec bin2x2

G=43x60sec bin2x2

B=32x60sec bin2x2

Ha=17x300sec bin2x2

Mr. Bent Munkholm

Eq. used, Scope FSQ 85 F/D5.3. Mount SkyWatcher NEQ6 Pro Skywatcher. Camera SBIG ST-8300M/C.

Exposure details & subs taken 8 and 12 Febr-2018:

L=37x900sec bin1x1

Ha=32x600sec bin1x1

R=14x300sec bin2x2

G=14x300sec bin2x2

B=14x300sec bin2x2

Mr. Niels Haagh

Eq. used, Scope TV NP127is F5.2. Mount TTS-160 Panther. Camera ZWO asi1600MM.

Filters Ha Baader.

Exposure details & subs taken 26 Febr-2018:

Ha=18x600sec bin1x1.

Eq. used: Scope TEC-140 F7. Mount TTS-160 Panther. Camera Canon 1100Da.

Exposure details & subs taken 25 Febr-2018:

25x300sec, ISO1600.

Integration of the individuel contributers calibrated LRGB,Ha,color stacks was done by me,

where I used CCDStack2, RegiStar and Adobe Photoshop CS6 programs/features.

Stack info. available (as 16bit Tiff) if needed/on request.

Kind regards Niels

Original
B
Final
C

B

Description: Minor color, levels & contrast adjustments performed and a star shrink function used. Kind regards Niels

Uploaded: ...

C

Description: Minor color adjustment and applied an USM. Kind regards Niels

Uploaded: ...

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	Distinct awarded users	Total awarded images
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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.
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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	1959874
PixInsight job	3VJNTMO1S1WJGOS5CXU8REFWXSB56TDU
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	09h55m31s.38
RA (top/left)	09h58m34s.94
RA (top/right)	09h53m11s.81
RA (bottom/right)	09h52m31s.37
RA (bottom/left)	09h57m47s.95

Dec (center)	+69°03′03″.5
Dec (top/left)	+69°13′04″.0
Dec (top/right)	+69°17′42″.1
Dec (bottom/right)	+68°52′55″.5
Dec (bottom/left)	+68°48′21″.6

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M81 a LRHaGB-color picture

M81 a LRHaGB-color picture

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Image Index:

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M81 a LRHaGB-color picture

M81 a LRHaGB-color picture

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Description

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C

Sky plot

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