Hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4277  ·  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool Galaxy
M51, 



    
        

            Scott
M51
Powered byPixInsight

M51

M51, 



    
        

            Scott
M51
Powered byPixInsight

M51

Acquisition details

Dates:
May 10, 2020
Frames:
ZWO 31mm Blue Zwo Blue: 12×120(24′) (gain: 139.00) -15°C bin 2×2
ZWO 31mm Green Zwo Green: 10×120(20′) (gain: 139.00) -15°C bin 2×2
ZWO 31mm Lumance ZWO Lum: 64×45(48′) (gain: 139.00) -15°C bin 2×2
ZWO 31mm Red ZWO Red 31mm: 10×120(20′) (gain: 139.00) -15°C bin 2×2
Integration:
1h 52′
Darks:
30
Avg. Moon age:
18.13 days
Avg. Moon phase:
87.69%
Bortle Dark-Sky Scale:
4.00
Mean SQM:
20.10
Mean FWHM:
4.00
Temperature:
13.00

Basic astrometry details

Astrometry.net job: 5073786

RA center: 13h29m52s.6

DEC center: +47°0939

Pixel scale: 0.860 arcsec/pixel

Orientation: 93.803 degrees

Field radius: 0.291 degrees

Resolution: 1899x1531

File size: 785.6 KB

Locations: Garland Mountain, Canton, Georgia, United States

Data source: Traveller

Description

M51 was one of the first galaxies I viewed back in the 80's and is one of my favorites. I was fortunate to get an unusually cool and clear night for May in Georgia, much better conditions than I had expected. Moon rise limited my exposure to just under two hours, but given the relatively high brightness of M51 I think it was just enough.

Comments

Revisions

  • M51, 



    
        

            Scott
    Original
  • M51, 



    
        

            Scott
    D
  • M51, 



    
        

            Scott
    E
  • Final
    M51, 



    
        

            Scott
    F

Sky plot

Sky plot

Histogram

M51, 



    
        

            Scott