Barnard 145 (Cygnus) 2018

Barnard 145 (Cygnus )* ( June-July 2018 ) * ASA N12 astrograph (f/3.6, 1075mm) *ASA DDM85 mount * G3-16200 CCD EC Moravian * Baader LRGB filter set * L: 480 minutes R:560 min G:440 min B: 480 min * Subframes acquired unguided (Sequence&Autoslew software): I revisited Barnard 145 almost 8 years laetr from my first image in 2009. Always interested in Barnard targets and dark nebula. Lying amongst the spiral arms of the Galaxy are numerous clouds of dust and gas.These clouds, commonly known as dark nebulae, absorb light from the stars behindand appear to observers on Earth as blank regions amongst the bright Milky Way. Barnard 145 (LDN 865) is a dark nebula in the constellation Cygnus. The red emission nebula all around is LBN190, as a part of Sh2-109.The dark nebulae are classified,according to their opacity on a scale from 1 (only slightly darker than the background Milky Way).Barnard 145 has a quoted size of 35'×6' and opacity of 4.