B 157 (LDN 1075) Dark Nebula in Cygnus

Located at: RA 21 hours 33 minutes 50 seconds, Dec +54 degrees 41 minutes 26 seconds

Size: 4.0' Magnitude: -- Class: C G

North is up

West to the right


 14.5" f5 Newtonian reflector


 ST-8XME, self-guided, binned 1x1, temp -15c, camera control MaxIm DL 4.56


Lumicon Red filter, 48 minutes (48 x 10 minute subs), 08/4/5/2017; seeing 2.1-3.7 FWHM per CCDStack

Processing: CCDStack 2.94.6355.18107, Photoshop CS5.1

 Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)


As with Sh2-82 and PK 59-1.1, I have moved to the east to avoid the brightening moon. This field was imaged in two nights with the moon about 95-98% full.

This description from the on-line Edward Emerson Barnard "A Photographic Atlas of Selected Regions of The Milky Way":

Dark Object
α (2000)
21h 33m 41s
δ (2000)
+54 40
Galactic Coordinates
97, 2
Round, diam 5, 8 W of BD+542576 (8.3 mag), a semi-circle of faint stars forms the western border.