B 104 (LDN 532) Dark Nebula in Scutum

Located at: RA 18 hours 47 minutes 19 seconds, Dec -04 degrees 33 minutes 53 seconds

Size: 16' x 1.0' Magnitude: -- Class: 5 (L-shaped)

North is up

West to the right


8" f5 Newtonian reflector


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


Lumicon Deep Sky filter, 240 minutes (24 x 10 minute subs), 09/11/12/2007


CCDStack 1.3, Photoshop 7.0


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


This interesting dark lane is located about 12 minutes north of 4.2 magnitude Beta Sct (SAO 142618, mag 4.23 visual), on the northern edge of the great Scutum Star Cloud. It is about 1.9 degrees NNW of M 11.

This description from the on-line Edward Emerson Barnard "A Photographic Atlas of Selected Regions of The Milky Way":
α(2000)18h 47m 20s, δ(2000) -4 33
Galactic Coordinates 28, -1
 Small, definite, caret-shaped object. This consists of a narrow straight black line 16' north and south, with a narrow spur at the south end extending west and north for 5'. The width of these lines is about 0'.7