04-12-2015, 03:25 AM
(This post was last modified: 04-12-2015, 03:30 AM by stevebowers.)
This is from wikisky, so it shows what it looks like from Earth. Deneb is about 3200 ly away, W75N(B)-VLA2 is about 4200ly away, and Cygnus OB2 is about 4500 ly away, so if you draw a line though them it will b more-or-less straight.
The dark Northern Coal Sack starts about 300 ly away, and stretches to about 2000 ly away, so it obscures a lot of these stars. A strand of the Coalsack also splits the North American Nebula off from the Pelican Nebula, which are probably both the same nebula and are about 1600 ly away.
The dark Northern Coal Sack starts about 300 ly away, and stretches to about 2000 ly away, so it obscures a lot of these stars. A strand of the Coalsack also splits the North American Nebula off from the Pelican Nebula, which are probably both the same nebula and are about 1600 ly away.