This image represents ten total hours of observation and was captured from the Dark Sky Alqueva observatory in Portugal.

Ursa Major is visible all year round from ... is a group of stars in a simple cross shape. The other stars in the constellation of Cygnus are extensions of this cross shape. 2.

What it is: An emission nebula, or star-forming region, named Sharpless 2-106 Where it is: 2,000 light-years away, in the constellation Cygnus When ... relatively quieter main sequence star ...