Barnard 75 and 262 in Ophiuchus
Barnard 75 and 262 in Ophiuchus
|
|
CLICK ON IMAGE FOR FULL SIZE VIEW (1800x1350) Scope: FSQ-106N 106 mm refractor at f/5, Location: Laguna Mountains, CA 8 June 2013 Camera: Artemis285 Exposure:
18 x 6 min (1x1 bin) exposure with UV/IR block, 8 x 3 min (2x2 bin) RGB
exposures.
Processing: Data
Collection - Artemis Capture (as FITs). Calibrated, stacked (Sigma
Combine), LRGB channel registration, equalization, central gradient removal -
Astroart. Curves, Levels, LRGB combine and finishing - Photoshop.
Final color Calibration with eXcalibrator. This image is a straightforward LRGB
combine with Luminance layering. Final Image size is
approximately 1800x1350. North is to the
left in this image. The dark Nebula on the left is known as Barnard 75; The dark
nebula on the right is known as Barnard 262. What used to be considered a hole
in the sky is now known to astronomers as a dark molecular cloud. Here, a high
concentration of dust and molecular gas absorb practically all the visible light
emitted from background stars. The eerily dark surroundings help make the
interiors of molecular clouds some of the coldest and most isolated places in
the universe. Horizontal FOV is 55'
Image center is approximately - Equatorial 2000: RA: 17h 25m 14s Dec: -22°16'44"
|
All images and content remain the property of Jim Thommes - copyright 2003 - 2013 Current
Web Total Hits -
- Unique Visitors |
