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Contains:  NGC 5195, Whirlpool galaxy, M 51, NGC 5194
Getting plate-solving status, please wait...
Whirlpool Galaxy (Messier 51), 





    
        

            Miles Zhou
Whirlpool Galaxy (Messier 51)

Whirlpool Galaxy (Messier 51)

Technical card

Imaging telescope or lens:Celestron C8NGT

Imaging camera:QHYCCD QHY 9M

Mount:ioptron iEQ45-GTN

Resolution: 1936x1600

Dates:May 11, 2013

Frames:
Various LRGB: 15x200"
Various LRGB: 7x300"

Integration: 1.4 hours

Avg. Moon age: 1.35 days

Avg. Moon phase: 2.05%

Astrometry.net job: 1015074

RA center: 13h 29' 47"

DEC center: +47° 13' 8"

Pixel scale: 0.612 arcsec/pixel

Orientation: 93.072 degrees

Field radius: 0.213

Locations: Hangzhou, Hangzhou, Zhejiang, China

Description

Messier 51 taken in 2013. 1.4 hours of total integration time. Calibration files lost track, thus not used. The image looks noisy.

Did some more noise reduction on Version C.

Comments

Author

mileszhou
Miles Zhou
License: None (All rights reserved)
3103
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Revisions

  • Whirlpool Galaxy (Messier 51), 





    
        

            Miles Zhou
    Original
  • Whirlpool Galaxy (Messier 51), 





    
        

            Miles Zhou
    B
  • Final
    Whirlpool Galaxy (Messier 51), 





    
        

            Miles Zhou
    C

Sky plot

Sky plot

Histogram

Whirlpool Galaxy (Messier 51), 





    
        

            Miles Zhou