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

Equipment

Imaging Telescopes Or Lenses
Sky-Watcher Esprit 100ED
Imaging Cameras
ZWO ASI294MC Pro
Mounts
Sky-Watcher AZ-EQ6 GT
Filters
Optolong L-eNhance 2" · Astronomik L 2
Accessories
Skywatcher Esprit 100 F5.5 flattener
Software
Adobe Lightroom Classic · Adobe Photoshop · Patrick Chevalley Cartes du Ciel · Pleiades Astrophoto PixInsight · Astro Photography Tool - APT · PHD2 Guiding
Guiding Cameras
Lodestar X2

Acquisition details

Dates:
Feb. 14, 2021 ·  March 1, 2021 ·  March 2, 2021 ·  March 5, 2021 ·  April 13, 2021 ·  May 7, 2021
Frames:
Astronomik L 2: 68x300" (5h 40') (gain: 120.00) -10°C bin 1x1
Optolong L-eNhance 2": 58x900" (14h 30') (gain: 120.00) -10°C 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: 5398700

RA center: 09h55m48s.7

DEC center: +69°1926

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.

Comments

Sky plot

Sky plot

Histogram

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



    
        

            Martin Junius

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