Abell 2151 Hercules Super Cluster of Galaxies Abell 2151 (Hercules Cluster) is a cluster of approximately 100 galaxies 650 million light years away within the constellation of Hercules. I attempted my own Deep Field while setting up remotely here in Oregon for one night. I wanted to go as deep as I could and took over 4 hours of CCD images to capture as many galaxies as possible. I have counted over 200 galaxies in this image; I believe some are very faint and small background galaxies. You can see several interacting galaxies that are within the Hercules Cluster. While this is no-where near what larger instruments can resolve with long exposures I am pleased with what a small telescope can accomplish in one night.
This trio of galaxies located in the rear leg area of the Constellation LEO, the lion. They are situated halfway between the stars Chertan (3.3 magnitude) on top and 78-Iota Leonis magnitude 4.46, at a distance of 35 million light years. Shinning at magnitude 10.3, 9.7 and 9.4 respectfully, they are visible through a good pair of binoculars or small 4-6″ telescope. Wide field eyepieces with larger aperture instruments of 12-16″ really show them well..
M51 “The Whirlpool Galaxy” also known as NGC 5194
The Whirlpool is located within the Constellation Canes Venatici, just down 3.5° from the last star of the handle of the Big Dipper (URSA Major). This galaxy shows up well in a moderate sized telescope. Apertures of 10″ or more begin to show detail from a dark sky site. M51 lies 37 million light years from earth and is viewed by amateurs and professionals alike. Several background galaxies are also visible in the image. M51 (14.2 x 9.5 arc minutes) is interacting with it’s companion Galaxy NGC5195 (8.9 x 7.4 arc minutes). Both galaxies have a magnitude of 8.35 & 9.49 respectfully and are not visible to the unaided eye. They do show up in good quality binoculars. The edge-on galaxy lower right is IC 4263 (UGC8470), magnitude 15.7 and 1.8 x 0.4 arc minutes in size, it lies 18 arc minutes South of M51.