B 127 (LDN 544) / B 129 (LDN 549) / B 130 (LDN 542) Dark Nebulae in Aquila

Center of field at approximately: RA 19 hours 01 minutes 44 seconds, Dec -05 degrees 25 minutes 31 seconds

Size: 4.0' / 5.0' / 7.0' Magnitude: --  / -- / -- Class: 5 Ir / 5 Ir / 5 Ir

North is up

West to the right

Telescope:

8" f5 Newtonian reflector

Camera:

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

Image:

Lumicon Red filter, 320 minutes (32 x 10 minute subs), 09/27/28/2008; seeing 2.4-3.1 FWHM per CCDStack

Processing:

CCDStack 1.3.7, Photoshop 7.0

Location:

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

Notes: This little trio of dark nebulae are among a couple of dozen Barnard small dark patches that cluster around the northern half of the great Scutum Star Cloud. This field is about 2.8 degrees WSW of M 11. B 127 is centered, B 129 is north and east (above and left), and B 130 is barley noticeable to the southeast (below left).

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

127
α(2000)19h 01m 32s, δ(2000) -5 27
Galactic Coordinates 29, -5
 Irregular, diam. 4 1/2. Very black in its southeast portion, diffused on the west side. B 127, 129, and 130 are connected in an irregular curve, convex to the west (see ibid., p. 7, and Plate IV for an account of visual observations, and a photograph of this object and of B 129).
129
α(2000)19h 02m 05s, δ(2000) -5 19
Galactic Coordinates 29, -5
 Very black, sharply defined, diam. 5, a small star at the W end. Somewhat rectangular in form with projections to the east. It is the blacker portion of a dark region 10' in diameter.
130
α(2000)19h 01m 57s, δ(2000) -5 35
Galactic Coordinates 29, -5
 Dusky, not well defined, length 7