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Contains:  NGC 5195, Whirlpool galaxy, M 51, NGC 5194
Getting plate-solving status, please wait...
M51 The Whirlpool Galaxy (My first LRGB photo), 


            Marc Silva
M51 The Whirlpool Galaxy (My first LRGB photo)

M51 The Whirlpool Galaxy (My first LRGB photo)

Technical card

Resolution: 1500x1288

Dates:April 20, 2018

Frames: 65x90"

Integration: 1.6 hours

Avg. Moon age: 4.77 days

Avg. Moon phase: 23.64% job: 2142229

RA center: 202.505 degrees

DEC center: 47.202 degrees

Pixel scale: 0.738 arcsec/pixel

Orientation: 141.218 degrees

Field radius: 0.203 degrees

Locations: My ranch, Daggett, CA, United States

Data source: Backyard


This is actually my very first LRGB photo I took with my ASI1600MM-Pro, even before my M8 photo posted previously. I never thought I would be able to get this set straightened out due to the fact I did not have a filter wheel when I took these subs. But with extra work and determination to not let this data go to waste I got everything fairly-well lined up to make a good composite. Also, due to the situation, I did not take flats for this set. Since I have learned more about taking LRGB subs in the nearly three months since I shot M51 I am hoping to return to this target soon for another imaging campaign. Since I first saw M51 back in 1984 through my Meade 2080 LX2 it has always been a favorite object of mine.



Marc Silva
License: None (All rights reserved)

Sky plot

Sky plot


M51 The Whirlpool Galaxy (My first LRGB photo), 


            Marc Silva