Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  M 81  ·  NGC 3031
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M81 - Bodes Galaxy, 



    
        

            AstroGeek
M81 - Bodes Galaxy
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M81 - Bodes Galaxy

Getting plate-solving status, please wait...
M81 - Bodes Galaxy, 



    
        

            AstroGeek
M81 - Bodes Galaxy
Powered byPixInsight

M81 - Bodes Galaxy

Technical card

Imaging telescopes or lenses: William Optics Zenithstar 81 APO WO ZS 80  ·  Orion XT8

Imaging cameras: ZWO ASI294MM Pro 294MM

Mounts: Skywatcher EQ6-R PRO

Guiding telescopes or lenses: ZWO MINI GUIDE SCOPE

Guiding cameras: ZWO ASI120MM-S

Software: Stellarium  ·  Nighttime Imaging 'N' Astronomy  ·  Photoshop CC 2021  ·  APP  ·  PHD2

Filters: Antlia B 1.25"  ·  Antlia G 1.25"  ·  Antlia R 1.25"  ·  Optolong L-Pro Deep Sky Filter - 1.25"

Accessory: ZWO EAF Focuser EAF  ·  Astro-Tech 2" Field Flattener  ·  Baader Planerarium MPCC MarkIII


Dates:March 6, 2021

Frames:
Antlia B 1.25": 15x180" (45') (gain: 0.00) -20C bin 1x1
Antlia B 1.25": 80x120" (2h 40') (gain: 0.00) -20C bin 2x2
Antlia G 1.25": 14x180" (42') (gain: 0.00) -20C bin 1x1
Antlia G 1.25": 99x120" (3h 18') (gain: 0.00) -20C bin 2x2
Antlia R 1.25": 14x180" (42') (gain: 0.00) -20C bin 1x1
Antlia R 1.25": 109x120" (3h 38') (gain: 0.00) -20C bin 2x2
Optolong L-Pro Deep Sky Filter - 1.25": 33x180" (1h 39') (gain: 0.00) -20C bin 1x1
Optolong L-Pro Deep Sky Filter - 1.25": 134x120" (4h 28') (gain: 0.00) -20C bin 2x2

Integration: 17h 52'

Darks: 10

Avg. Moon age: 22.60 days

Avg. Moon phase: 45.18%

Bortle Dark-Sky Scale: 5.00


Basic astrometry details

Astrometry.net job: 5139308

RA center: 09h55m30s.5

DEC center: +69°0433

Pixel scale: 1.064 arcsec/pixel

Orientation: 13.267 degrees

Field radius: 0.476 degrees


Resolution: 2416x2132

Data source: Backyard

Description

I started imaging M81 in December 2020, but did not finish till March 2021 due to a combination of poor weather (clouds, rain, and wind), poor seeing, equipment issues, and unhappiness in my post processing.

I decided to move on to other targets and finish with M81 for this year.

This version is a result of data from my William Optics ZenithStar 81 and Orion XT8. I had data from my RC8 yet the collimation is still not perfect so the data was a bit too soft for my liking.

Comments

Revisions

  • M81 - Bodes Galaxy, 



    
        

            AstroGeek
    Original
  • M81 - Bodes Galaxy, 



    
        

            AstroGeek
    B
  • Final
    M81 - Bodes Galaxy, 



    
        

            AstroGeek
    C

B

Description: Noise reduction with DeNoise. Not marking as final, yet interesting to compare versions. Quite a bit of negative attention to Topaz tools and "fake" detail. Can you see any or simply noise reduction?

Uploaded: ...

C

Description: Better processing, decon, etc. Colors are a bit softer.

Uploaded: ...

Sky plot

Sky plot

Histogram

M81 - Bodes Galaxy, 



    
        

            AstroGeek