Hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4263  ·  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool Galaxy
M51 in Ha-LRGB, 



    
        

            Thomas B.
M51 in Ha-LRGB
Powered byPixInsight

M51 in Ha-LRGB

M51 in Ha-LRGB, 



    
        

            Thomas B.
M51 in Ha-LRGB
Powered byPixInsight

M51 in Ha-LRGB

Equipment

Imaging Telescopes Or Lenses
Sky-Watcher Quattro 10 S f/4
Imaging Cameras
ZWO ASI1600MM
Mounts
Sky-Watcher EQ6-R Pro
Filters
Astrodon Ha 1.25" 5nm · ZWO BLUE 1.25" ZWO Blue · ZWO RED 1.25" ZWO Red · Lumicon UHC 1.25" · ZWO GREEN 1.25" ZWO Green
Accessories
ZWO 5x 1.25" Filter Wheel (EFW mini) · Skywatcher GPU F/4-5 coma corrector
Software
Adobe Phosotshop CC 2018 · KStars Ekos/INDI/RPI · DSS 4 64bit
Guiding Telescopes Or Lenses
Sky-Watcher Quattro 10 S f/4

Acquisition details

Dates:
March 27, 2020
Frames:
800x15" (3h 20')
Integration:
3h 20'
Avg. Moon age:
2.78 days
Avg. Moon phase:
8.47%

Basic astrometry details

Astrometry.net job: 3407789

RA center: 13h30m01s.4

DEC center: +47°1301

Pixel scale: 0.780 arcsec/pixel

Orientation: 286.428 degrees

Field radius: 0.544 degrees

Resolution: 4032x3000

Locations: Balcony, central Paris, Paris, France

Data source: Backyard

Description

The luminance was acquired with the UHC filter (~150x15s),

R, G and B layers are ~200x10s because of extreme light pollution,

a H-alpha (~50x180s) layer highlights the emission zones (red spots).

Comments

Sky plot

Sky plot

Histogram

M51 in Ha-LRGB, 



    
        

            Thomas B.