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Abell 21 Medusa Nebula

Technical card

Resolution: 2000x1506

Dates:Jan. 2, 2018Feb. 6, 2018Feb. 23, 2018

Ha 5nm: 92x600" -25C bin 1x1
OIII 5nm: 89x600" -25C bin 1x1
SII 5nm: 56x600" -25C bin 1x1

Integration: 39.5 hours

Avg. Moon age: 14.60 days

Avg. Moon phase: 71.07% job: 1945196

RA center: 7h 28' 54"

DEC center: +13° 15' 14"

Pixel scale: 0.834 arcsec/pixel

Orientation: 98.324 degrees

Field radius: 0.290

Data source: Backyard



Bert Scheuneman

Sky plot

Sky plot


Abell 21 Medusa Nebula, 


            Bert Scheuneman

In these public groups

Narrowband imaging