Hemisphere:  Northern  ·  Contains:  Bode's Galaxy  ·  Bode's galaxy  ·  Cigar Galaxy  ·  Cigar galaxy  ·  M 81  ·  M 82  ·  M81  ·  M82  ·  NGC 3031  ·  NGC 3034  ·  NGC 3077  ·  NGC3077
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M81, M82 & IFN, 



    
        

            Jean-Baptiste Auroux
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Imaging telescopes or lenses: Takahashi TSA 102  ·  Astro Professional 66/400 ED

Imaging cameras: Atik ONE 6.0

Mounts: Skywatcher AZ EQ6 GT

Guiding telescopes or lenses: Takahashi TSA 102  ·  Astro Professional 66/400 ED

Guiding cameras: Atik GP

Focal reducers: Takahashi TOA-RD

Software: Pleiades Astrophoto PixInsight 1.8 Ripley  ·  PHD Guiding 2  ·  Atik Artemis

Filters: Astronomik Ha 6nm  ·  Astronomik LRGB 1,25"

Accessory: Atik OAG


Dates:Feb. 17, 2017Feb. 18, 2017Feb. 27, 2019Feb. 28, 2019

Frames:
Astronomik Ha 6nm: 12x300" -15C bin 2x2
Astronomik LRGB 1,25": 60x180" -20C bin 2x2
Astronomik LRGB 1,25": 36x300" -20C bin 2x2
Astronomik L 1.25": 84x300" -20C bin 1x1
Astronomik L 1.25": 40x900" -20C bin 1x1

Integration: 24.0 hours

Darks: ~64

Flats: ~16

Bias: ~101

Avg. Moon age: 22.49 days

Avg. Moon phase: 46.53%

Bortle Dark-Sky Scale: 3.80


Astrometry.net job: 3375242

RA center: 9h 57' 40"

DEC center: +69° 9' 19"

Pixel scale: 2.921 arcsec/pixel

Orientation: 113.884 degrees

Field radius: 1.427 degrees


Resolution: 2749x2199

Locations: Fouras, Fouras, 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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Jean-Baptiste_Paris
Jean-Baptiste Auroux
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M81, M82 & IFN, 



    
        

            Jean-Baptiste Auroux