Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  Cigar Galaxy  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034  ·  NGC 3077
Getting plate-solving status, please wait...
M81, M82 & IFN, 



    
        

            Jean-Baptiste Auroux
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Getting plate-solving status, please wait...
M81, M82 & IFN, 



    
        

            Jean-Baptiste Auroux
Powered byPixInsight

Acquisition details

Dates:
Feb. 17, 2017 ·  Feb. 18, 2017 ·  Feb. 27, 2019 ·  Feb. 28, 2019
Frames:
Astronomik Ha 6nm: 12×300(1h) -15°C bin 2×2
Astronomik L 1.25": 84×300(7h) -20°C bin 1×1
Astronomik L 1.25": 40×900(10h) -20°C bin 1×1
Astronomik LRGB 1,25": 60×180(3h) -20°C bin 2×2
Astronomik LRGB 1,25": 36×300(3h) -20°C bin 2×2
Integration:
24h
Darks:
64
Flats:
16
Bias:
101
Avg. Moon age:
22.49 days
Avg. Moon phase:
46.53%
Bortle Dark-Sky Scale:
3.80

RA center: 09h57m40s.28

DEC center: +69°0919.5

Pixel scale: 2.921 arcsec/pixel

Orientation: 113.884 degrees (flipped)

Field radius: 1.427 degrees

More info:Open 

Resolution: 2749x2199

File size: 27.6 MB

Locations: Charente-Maritime, Charente-Maritime, Charente-Maritime, France

Data source: Backyard

Description

Composition of 2 images made with :

- Apo 66/400 refractor with CCD AtikOne6 ;

- TSA102 (f/6) refractor with CCD AtikOne6.

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This image is dedicated to the memory of our friend Gérard Thérin, one of the french most gifted astrophotographer, who passed away few days ago...

Cette image est dédiée à la mémoire de notre ami Gérard Thérin, l'un des astrophotographes les plus talentueux, qui nous a quitté trop tôt il y a quelques jours...

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