B130
Dark Nebula in Aquila
About
Lynds listed this Aquila dark cloud as LDN 542, with opacity class 3, a moderate rating well below the darkest clouds. It lies near B127, B129 and B134, and roughly 1.7° from B133.
Imaging tips
- Dark nebulae call for broadband imaging, since the cloud is recorded as a gap in the star field.
- At 2420–4040 mm on APS-C or 3710–6190 mm on full frame, the 10 × 6′ cloud spans a third to half of the frame.
- Lynds rated it only class 3 for opacity, where neighbouring B133 is class 6.
- Best around June and July; it peaks near 34° altitude from 50°N.
- One imager photographed this cloud with a 12-inch f/8 Meade LX600 and a DSLR, using a focal reducer at prime focus, and presented it in black and white.
Facts
- Size
- 10′ × 6′
- Magnitude
- —
- Coordinates
- RA 19h 1.7m, Dec −5° 35′
- Framing, APS-C
- 2420–4040 mm
- Framing, full frame
- 3710–6190 mm
- Best months
- Jun, Jul
- Peak altitude
- 34° from 50°N, 49° from 35°N