Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  Cigar Galaxy  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034
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M81 Bode's Galaxy and M82 Cigar Galaxy - Feb/Mar/Apr/May 2021 v1, 



    
        

            Martin Junius
M81 Bode's Galaxy and M82 Cigar Galaxy - Feb/Mar/Apr/May 2021 v1
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M81 Bode's Galaxy and M82 Cigar Galaxy - Feb/Mar/Apr/May 2021 v1

Getting plate-solving status, please wait...
M81 Bode's Galaxy and M82 Cigar Galaxy - Feb/Mar/Apr/May 2021 v1, 



    
        

            Martin Junius
M81 Bode's Galaxy and M82 Cigar Galaxy - Feb/Mar/Apr/May 2021 v1
Powered byPixInsight

M81 Bode's Galaxy and M82 Cigar Galaxy - Feb/Mar/Apr/May 2021 v1

Technical card

Imaging telescopes or lenses: Skywatcher Esprit 100ED APO Triplet

Imaging cameras: ZWO ASI 294MC Pro

Mounts: Skywatcher AZ EQ6 GT

Guiding cameras: Lodestar X2

Focal reducers: Skywatcher Esprit 100 F5.5 flattener

Software: Adobe Photoshop 2021  ·  Adobe Photoshop Lightroom Classic  ·  Pleiades Astrophoto S.L. PixInsight 1.8 Ripley  ·  Astro Photography Tool - APT  ·  PHD2 Guiding  ·  Cartes du Ciel

Filters: Optolong L-eNhance 2"  ·  Astronomik L 2


Dates:Feb. 14, 2021March 1, 2021March 2, 2021March 5, 2021April 13, 2021May 7, 2021

Frames:
Astronomik L 2: 68x300" (5h 40') (gain: 120.00) -10C bin 1x1
Optolong L-eNhance 2": 58x900" (14h 30') (gain: 120.00) -10C bin 1x1

Integration: 20h 10'

Darks: ~15

Flats: ~110

Flat darks: ~30

Avg. Moon age: 14.41 days

Avg. Moon phase: 43.77%

Bortle Dark-Sky Scale: 5.00

Mean SQM: 19.40

Temperature: -0.40


Basic astrometry details

Astrometry.net job: 4544092

RA center: 9h 55' 48"

DEC center: +69° 19' 26"

Pixel scale: 0.863 arcsec/pixel

Orientation: 93.224 degrees

Field radius: 0.770 degrees


Resolution: 5336x3568

Locations: Dellbrück, Köln, NW, Germany

Data source: Backyard

Description

The last one for this season. Clear skies were quite rare in spring 2021, thus the exposure time is way to short for my skies and the resulting image quite noisy.
The RGB OSC data was merged with Ha from the L-eNhance dual narrowband filter.

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M81 Bode's Galaxy and M82 Cigar Galaxy - Feb/Mar/Apr/May 2021 v1, 



    
        

            Martin Junius

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