NGC 6888 Crescent Nebula, 50×45 sec
I found some forgotten raw material I collected during the summer. Tech details show the frames were more like tests than a serious attempt at photographing this object. Nevertheless it was worth the shot.
NGC 6888, also known to amateurs as Caldwell 27, the Crescent nebula is a faint, 10m deep sky object in Cygnus, near the well known Sadr (γ Cygni) region. The nebula is blown by the Wolf-Rayet star WR 136 (HD 192163).
There is a „flaming” feature at the bottom of this frame, which is part of a much fainter nebulosity system more evident on other pictures
I have taken of the gamma Cygni region.
Tech data: Canon 1100D mod, 50×45 sec, ISO 3200, SW N 150/750 + Baader MPCC Mark III, HEQ5, Dângău Mare. Light collected on 2016-08-05, data processed on 2016-01-09, 10.
raw sample
raw sample curved, note the noise
50x stack
stack curved: less noise
the stack developed
stage
stage
many stars
less stars
NGC 6888 Crescent Nebula, final picture
