M45: The Pleiades (open cluster)

Considered one of the greatest open clusters in the northern sky, it was called the "seven sisters" by ancient mariners because of its seven brightest stars arranged in a dipper shape. The total number of stars associated with this cluster numbers about 500 and covers an area of sky about four times the size of the full moon.

The Owl Cluster (open cluster) (NGC 457)

Located in the constellation Cassiopeiae, this object gots its name through the imagination of observers who noted the two brightest stars in the cluster and began connecting dots in their minds.

The Rosette Nebula (NGC 2237-39) (emission nebula)

Located in the constellation Monoceros, this object got its name because of its wreath-shaped appearance in photographs. A stellar birthplace, inner areas of the nebula have been dated at only 50,000 years.

The Veil Nebula (NGC 6960, 6979, 6992 and 6995) (supernova remnant)

The Veil Nebula consists of a network of separate filaments that spread across several degrees of sky. Given its distribution in space, the supernova is estimated to have occurred about 160,000 years ago, if the speed of expansion has remained constant.

The Spine of Cygnus

A star rich area in the constellation Cygnus that includes the Gamma Cygni region, North American, and Veil Nebulas.

The Andromeda Galaxy (M31) (NGC 224)

At a distance of 2.3 million light years, Andromeda is not the closest galaxy to the Milky Way, although it is certainly the most famous (at least to people living in the northern hemisphere). It is the most distant object visible to the naked eye and is thought to be about 50% larger than the Milky Way. In the picture, two companion galaxies can also be seen: A small luminous M110 above M31 and a bright star-shaped M32 within the lower spiral arms of M31.

M24

The Small Sagittarius Star Cloud, a collection of tens of thousands of stars spanning over two degrees of space. The black spaces without stars in the upper middle region are actually dark nebulas called Barnard 92 and Barnard 93 after the man who first found them.

The Virgo Galaxy Cluster

This picture shows Markarian's Chain, visible as a bowl shaped collection of galaxies. The five brightest objects are M86 and M84 on the right and M88 on the upper left, which is the end of the chain. M87 is in the lower middle and M89 is in the lower left.