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

M51 Galaxy, a LRHaGB picture

Technical card

Resolution: 1477x1117

Dates:March 18, 2018March 19, 2018April 9, 2018

Frames:
146x120"
24x300"

Integration: 6.9 hours

Avg. Moon age: 8.70 days

Avg. Moon phase: 14.72%

Astrometry.net job: 1974779

RA center: 202.491 degrees

DEC center: 47.216 degrees

Pixel scale: 0.839 arcsec/pixel

Orientation: 139.015 degrees

Field radius: 0.216 degrees

Locations: Home observatory, Copenhagen, DK-2270 Kastrup, Denmark

Description

21 March-2018, Just FYI,
https://www.cloudynights.com/topic/611811-m51-galaxy-a-lrhagb-picture/

Old info.
Frames/subs taken 18->19 March-2018.
A perfect night with temperaturs below zero.

Raw frames were taken like this. LRGB=62,28,28,28 all 120sec exposures. Ha exposures=10x300sec.

Remote setup used,
https://astrob.in/338099/0/

My home build observatory is placed in my front yard/in the "red light" polution zone, have a look here,
Red Zone

On request I will be happy to share/show tif/fit files/stack info, please just let me know, thanks.
Kind regards Niels

Comments

Author

nvcchr1
Niels V. Christensen
License: None (All rights reserved)
123511
Like

Revisions

B

8->9 April-2018. More Ha added into the red channel, 14x300sec. Star repair & slighlty cropped. Level, curves & new USM added. Kind regards Niels

Sky plot

Sky plot

Histogram

M51 Galaxy, a LRHaGB picture, 





    
        

            Niels V. Christensen

In these public groups

"Nordish by nature"
CMOS Imagers