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 Spine of Cygnus

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

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.

The Veil Nebula

The Veil Nebula consists of a network of separate filaments the spead across several degrees of sky. The supernova is estimated to have occurred about 160,000 years ago, assuming that the speed of expansion has remained constant.

NGC 6992

This close up of a part of the Veil Negula shows excellent detail

The Rosette Nebula (NGC 2237-9; emission nebula)

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

M37 (NGC 2099; open cluster)

Located in the constellation Auriga, this group of stars is approximately 4,600 light years from Earth

The Andromeda Galaxy (M31; NGC 224)

At a distance of 2.3 million light years, Andromeda is not the closest galaxy to the Earth, although it is certainly the most famous (at least to people 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 be seen: a small luminous M110 above M31, and a bright star shaped M32 within the lower spiral.

M104 (NGC 4594; galaxy)

When discovered in the 18th century, this galaxy was named the "Sombrero Nebula". If discovered today, I suspect it might be named the "UFO Galaxy"

M38 (NGC 1912; open cluster)

M38 is one of three famous clusters in Auriga, which includes M36 and M37. In the picture, other less famous clusters are seen, including NGC 1907, seen below M38, Stock 8, an anonymous cluster below NGC 1907, and NGC 1931, a cluster about which little is known, which is to the left of Stock 8.