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Contains:  IC 4263, M 51, NGC 5194, NGC 5195, Whirlpool galaxy
Getting plate-solving status, please wait...
M51 Ha-LRGB with IFN, 


M51 Ha-LRGB with IFN
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M51 Ha-LRGB with IFN

Technical card

Dates:Jan. 5, 2019

ZWO B 31mm: 34x120" (gain: 170.00) -15C bin 1x1
ZWO G 31mm: 39x120" (gain: 170.00) -15C bin 1x1
ZWO H-alpha 7nm 31mm: 5x300" (gain: 170.00) -15C bin 1x1
ZWO L 31 mm: 40x120" (gain: 170.00) -15C bin 1x1
ZWO R 31mm: 40x120" (gain: 170.00) -15C bin 1x1

Integration: 5.5 hours

Darks: ~10

Avg. Moon age: 29.02 days

Avg. Moon phase: 0.30%

Bortle Dark-Sky Scale: 4.00

Mean SQM: 21.00

Basic astrometry details job: 2457247

RA center: 13h 29' 55"

DEC center: +47° 11' 31"

Pixel scale: 0.723 arcsec/pixel

Orientation: 84.128 degrees

Field radius: 0.572 degrees

Resolution: 4570x3410

Locations: Observatoire Perso, Bougneau, Charente Maritime, France

Data source: Backyard


First time on M51. You can see IFN (Integrated Flux Nebula) on the picture.
Weather was not very cold but with 20km/h wind.

Fred Lamagat "fred4646" on astrobin, helped me with the Ha integration to the LRGB



License: None (All rights reserved)

Sky plot

Sky plot


M51 Ha-LRGB with IFN,