Coalsack

(redirected from Coalsack Nebula)
Also found in: Dictionary, Wikipedia.
Related to Coalsack Nebula: Crab Nebula, Dark nebula, Carina Nebula

Coalsack:

see Milky WayMilky Way,
the galaxy of which the sun and solar system are a part, seen as a broad band of light arching across the night sky from horizon to horizon; if not blocked by the horizon, it would be seen as a circle around the entire sky.
..... Click the link for more information.
.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

Coalsack

(kohl -sak) (Southern Coalsack) A prominent dark nebula about 170 parsecs away in the southern constellation Crux. It has an angular diameter of 6° and can be seen with the naked eye as a completely black shape silhouetted against the background of the Milky Way.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

Coalsack

[′kōl‚sak]
(astronomy)
An area in one of the brighter regions of the Southern Milky Way which to the naked eye appears entirely devoid of stars and hence dark with respect to the surrounding Milky Way region.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
These beautiful images of the Large Magellanic Cloud, the Southern Cross, and the Coalsack Nebula may seem comparable to those taken from a dark site on Earth, but they're pretty amazing for a camera and observer traveling at 28,000 km per hour!
The dark dust lanes and the prominent Coalsack Nebula were in sharp relief within the brilliant southern Milky Way.