Perhaps this is relevant when you consider that deep space images of the same subject by different photographers always appear dissimilar. Beyond the obvious variances of equipment, weather conditions and processing, it suggests every astronomical picture is a summer’s dream, toned by the mind of its creator, that celebrates this simple fact of life: We see what we believe.. and feel.
From: A Summer’s Midnight Dream, R. Jay GaBany
The globular cluster, pictured here, contains roughly 100,000 stars. These stars formed together and are gravitationally bound. Stars orbit the center of the cluster, and the cluster orbits the center of our Galaxy. This is one of the finest clusters in the sky with stars shining at magnitude 5.7 measuring 23' across corresponding physiccal diameter of 125 light years. M-5 lies high above the galactic plane some 25,000 light years away. Because it is so bright, M-5 is visible to the naked eye as a 'star' with dark skies.
Great Hercules Cluster was discovered by Halley in 1714 and Messier observed it on June 1, 1764. Approx. 23,400 light years distant and 160 light years in diameter, it contains more than 1 million stars.
This open cluster in Canis Major is visible with a naked eye 4° S of Sirius (a Canis Majoris - see finder chart below) and was mentioned by Aristotle in 325 BC. Messier observed it on Jan. 16, 1765.
Also known as Bode's Galaxy is in the constellation Ursa Major, it is a spiral galaxy located approx 12 million light years from earth. As the brightest member of the M81 group at magnitude 6.8 it was site of a supernova explosion in 1993.
A member of the M81 group, M82 is classified as a irregular galaxy also known as the Cigar Galaxy with a magnitude of 8.4 with no known structure. M82 is also approx 12 million light years away from earth and is a strong source infrared radiation.
We think that M82 looks the way it does is due to a close encounter with M-81. As you can see in this picture, the two galaxies are breathtakingly close.