M1, The Crab Nebula, is a supernova remnant, 6,300 light years away in constellation Taurus. It's an expanding cloud of gas caused by the explosion of a star, discovered in 1054 A.D. It continues to expand at 1,800 km a second!
M10 is a globular cluster 14,300 light years away in the constellation Ophiuchus. Its diameter is 83 light years. It is situated 16,000 light years from the Milky Way's core and completes one orbit every 140 million years.
M14 is globular cluster 30,300 light years away. About 100 light years across, this is one of the smaller clusters in our galaxy. Harder to find with medium optics, it sits in the constellation Ophiuchus.
M22 is an elliptical globular cluster in the constellation Sagittarius. It is one of the brightest clusters and is near the center of our galaxy. It sits 10,600 light years away and is made up of approximately 70,000 stars.
M5 is 24,500 light years away from earth. It contains over 100,000 stars but some estimates go as high as 500,000. It's 13 billion years old and as one of the largest known globular cluster, it spans over 165 light years.
Messier 15 is a globular cluster 33,600 light years away in the constellation Pegasus. Approximately 200 light years in diameter, 50 % of its 100,000 stars are within it's core which is only 10 light years in diameter.
M33, The Triangulum Galaxy is a spiral galaxy 3 million light years away. It's the third largest of the local group of galaxies. With a radius of 50,000 light years, it is estimated to include 40 billion stars, which is 10 times fewer than our Milky Way.
The Pleiades are only 440 light years away. Being one of the closest open clusters, it is dominated by nine blue stars born only 100 million years ago. They are named after the seven sisters of Greek mythology. The cluster sits in a cloud of interstellar dust which reflects the blue colour of the stars.
M51, The Whirlpool Galaxy is slowly "eating" its nearby companion (NGC 5195). It's about 23 million light years away. It is near the end of the handle of the big dipper. This unfortunate "event" will happen with our own galaxy several billion years from now as it will merge with our closest neighbour, Andromeda. A couple small and distant galaxies are also visible in this image.
M8 is a huge interstellar cloud. This particular image is a close up of the core but it is very large and visible to the naked eye in dark skies. It is 6,000 light years away in constellation Sagittarius.
The Eagle Nebula is a huge cloud of interstellar gas and dust that lies in the next spiral arm of our Milky Way, 7,000 light years away from Earth. Many stars are forming in that region, hence its nickname; The Pillars of Creation.
M29, directly in the middle of this picture, is an open cluster in the constellation Cygnus. It's 4,000 light years away. Made up of about 50 stars, the main 5 stars are giant stars, which means over 150,000 times brighter than our own sun. The cluster is also known as the cooling tower.
M35 (bottom left) is an open cluster in constellation Gemini. It is only 2,800 light years away and 100 million years old. The tight cluster in the middle is NGC 2158 and the smaller clusters on top are NGC 2156 and 57. Note asteroid 27 Euterpe (diagonal line), shining at about mag 10.5 about 1.5" left of the central cluster. See the animation in the Deep Space Objects section.
M39 is an open star cluster in the constellation Cygnus. The backdrop of millions of stars is our Milky Way. Made up of about 30 stars, the cluster sits 825 light years (LY) away from Earth. All 30 stars are within a 7 LY radius.
M42, The Great Orion Nebula is 20,000 times larger than our entire solar system and sits in the winter constellation Orion. The smaller pointy nebula south-west is M43. The blue nebula on the left is known as the "running man nebula" or NGC 1977.
M49 is a bright elliptical galaxy part of the Virgo cluster, in constellation Virgo. It is 56 million light years away. The image also shows several smaller and more distant galaxies including NGC 4470 in the upper-right corner