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Contains:  NGC 5195, Whirlpool galaxy, M 51, NGC 5194, IC 4263
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The Whirlpool Galaxy (M51), 





    
        

            Chuck's Astrophot...
The Whirlpool Galaxy (M51)

The Whirlpool Galaxy (M51)

Technical card

Resolution: 2221x2274

Dates:April 7, 2018April 20, 2018March 17, 2019April 1, 2019

Frames:
Astronomik Blue: 90x60" (gain: 139.00) -20C bin 1x1
Astronomik Blue: 120x30" (gain: 75.00) -20C bin 1x1
Astronomik Green: 90x60" (gain: 139.00) -20C bin 1x1
Astronomik Green: 120x30" (gain: 75.00) -20C bin 1x1
Optolong L-pro: 417x30" (gain: 139.00) -20C bin 1x1
Astronomik Lum 1.25": 1052x30" (gain: 139.00) -20C bin 1x1
Astronomik Red: 45x120" (gain: 139.00) -20C bin 1x1
Astronomik Red: 120x30" (gain: 75.00) -20C bin 1x1

Integration: 19.7 hours

Darks: ~50

Flats: ~50

Bias: ~50

Avg. Moon age: 15.72 days

Avg. Moon phase: 44.25%

Astrometry.net job: 2625417

RA center: 202.465 degrees

DEC center: 47.206 degrees

Pixel scale: 1.041 arcsec/pixel

Orientation: 94.476 degrees

Field radius: 0.459 degrees

Data source: Backyard

Description

I capture the Whilrlpool Galaxy every year hoping to do a little better job on it each time. I combined this year's data with last year. I had so many files because of my short exposures that it took a full day just to calibrate and integrate them all - even on my i7.

Comments

Author

YobSnob
Chuck's Astrophot...
License: None (All rights reserved)
8176
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Revisions

  • The Whirlpool Galaxy (M51), 





    
        

            Chuck's Astrophot...
    Original
  • Final
    The Whirlpool Galaxy (M51), 





    
        

            Chuck's Astrophot...
    C

C

Less purple galaxy. And a little more crisp.

Sky plot

Sky plot

Histogram

The Whirlpool Galaxy (M51), 





    
        

            Chuck's Astrophot...