B 340 (LDN 707) Dark Nebula in Aquila

Center of field at approximately: RA 19 hours 48 minutes 49 seconds, Dec +11 degrees 29 minutes 20 seconds

Size: 7.0' (15')* Magnitude: -- Class: 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, 300 minutes (30 x 10 minute subs), 10/5/6/2008; seeing 3.0-3.7 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:* My software (Megastar v5.0.12) plots B 340 at 19h 48m 47.5s, +11d 23m 44s, which is at the center, lower one fourth of this image.

The CDS has this position for B 340 ... 19h 48m 42s, +11d 24m 00s.

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

340
α(2000)19h 48m 45s, δ(2000) +11 24
Galactic Coordinates 50, -7
 Irregular, curved, diam. 7, 25 S of BD+113994 (5.8 mag), a narrow extension for 15 to the N