B 26 / B 27 / B 28 and vdB 31 Dark Nebulae & Bright Nebula in Auriga

Center of field approximately: RA 04 hours 55 minutes 11 seconds, Dec +30 degrees 40 minutes 31 seconds

Size: 5.0' / 5.0' / 4.0' and 8.0' x 3.5' Magnitude: all three -- Class: 6 Ir / 6 Ir / 6 Ir and Reflection

North is up

West to the right

Telescope:

 8" f5 Newtonian reflector

Camera:

 ST-8XME, self-guided, binned 1x1, temp -25c, camera control MaxIm DL 4.56

Image:

Red (Hoya 25A) filter, 210 minutes (21 x 10 minute subs), 01/21/2007

Processing:

CCDStack 1.2, Photoshop 7.0

Location:

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

Notes: This field is the last and probably the most interesting of the Dark Nebulae I imaged in Auriga during January 2007. The positions seem fairly close to the cataloged numbers, but there seems to be four 'dark' spots here ... from west to east (right to left) are B 26, B 27 and B 28 ... the middle of the 'three' (B 27) is clearly two dark spots aligned north-south. vdB 31 (LBN 798) is the barley discernable nebulosity between the two 'bright' stars just under B 28.

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

Dark Object
26
α (2000)
4h 54m 37s
δ (2000)
+30 38
Galactic Coordinates
172, -8
Description
Irregular, diam. 5, B 26, 27, and 28 are close NW of BD+30741 (6.8 mag), which is involved in feeble nebulosity.
Dark Object
27
α (2000)
4h 55m 07s
δ (2000)
+30 34
Galactic Coordinates
172, -8
Description
Irregular, diam. 5 .
Dark Object
28
α (2000)
4h 55m 52s
δ (2000)
+30 39
Galactic Coordinates
173, -8
Description
Irregular, diam. 4.