The Dragon nebula (fragment of the Gamma Cygnus complex)




9 Hours exposure (18x30 minutes) with an 18 inch F/4.5 newtonian running at F/8.5 (AP barlow lens)

ST-8XE camera at -30C

Guiding with AO-7 at 4 Hz

FWHM between 1.1" and 2.5"

50 nm FWHM Ealing H-Alpha filter


To give a better idea of where this field is, here is an wide field view of the Gamma Cygnus area (POSS Plates).












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Porter Cable