Contains: IC 4996, Crescent nebula, NGC 6888
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Crescent Nebula (NGC6888) and surroundings on widefield Hα (Mosaic 2x2)

Technical card

Resolution: 4096x3088

Dates: July 29, 2017

Frames: Baader Planetarium Ha 1.25" 7nm: 240x120" (gain: 200.00) -20C bin 1x1

Integration: 8.0 hours

Avg. Moon age: 6.33 days

Avg. Moon phase: 38.92% job: 1674972

RA center: 302.506 degrees

DEC center: 39.284 degrees

Pixel scale: 3.114 arcsec/pixel

Orientation: 89.319 degrees

Field radius: 2.218 degrees

Locations: Berga Resort, Berga, Barcelona, Spain


Mosaic of 4 panels, original picture at 8697px x6557px (downsampled and uploaded only in 4k).



Jose Carballada

Sky plot

Sky plot


Crescent Nebula (NGC6888) and surroundings on widefield Hα (Mosaic 2x2), 


        Jose Carballada