Snake Nebula (Bernard 72)
Location: Warrumbungle Observatory, Australia (149 11 E, 31 16 S)
Date: 27/28 May 2012
Telescope: William Optics M120
Frames: Ten 300 second exposures for each of RGB and fourteen 600 second exposures in luminance.
Processing: Stacked in CCDStack, balanced, curves, highlights, smart sharpened and noise reduction in
Text from APOD: Dark nebulae snake across a gorgeous expanse of stars in this telescopic
view toward the pronounceable constellation Ophiuchus and the center of our Milky Way Galaxy. In fact, the
twisting central shape seen here is well known as the Snake Nebula. It is also listed as Barnard 72 (B72), one
of 182 dark markings of the sky cataloged in the early 20th century by astronomer E. E. Barnard. Unlike bright
emission nebulae and star clusters, Barnard's nebulae are interstellar dark clouds of obscuring gas and dust.
Their shapes are visible in cosmic silhouette because they lie in the foreground along the line of sight to rich
star fields and glowing stellar nurseries near the plane of our Galaxy. Many of Barnard's dark nebulae are
themselves likely sites of future star formation. Barnard 72 is about 650 light years away.