Coal·sack (k l s k )n. 1. A dark nebula, one of the nearest to Earth, that appears in the southern Milky Way. 2. A similar dark nebula in the Northern Hemisphere near the constellation Cygnus. |
Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
| ?Page tools | ||
|---|---|---|
|