B 113 (LDN 548) Dark Nebula in Scutum

Center of field at approximately: RA 18 hours 51 minutes 17 seconds, Dec -04 degrees 18 minutes 25 seconds

Size: 11' Magnitude: -- Class: 6 Ir G

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 Red filter, 540 minutes (54 x 10 minute subs), 09/4/5/2010; 2.5-3.4 FWHM per CCDStack


CCDStack 2.11.3874.21660, Photoshop 7.0


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

Notes: B 113 is located about 38 minutes NNE of B 110 ... the patchy Dark Nebulae running N-S to the west (right) of B 113 is not a Barnard nebulosity. The CDS lists TGU H296 P3 (see here for some info on this catalogue) at this position. This chain of dark patches runs from the top of B 110 due north for about 45 arc minutes.

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

α(2000)18h 51m 25s, δ(2000) -4 20
Galactic Coordinates 29, -2
 Irregular, diam. 16, small star in W part