Sxinias
M8 M20 M21
This image has three Messier Objects; M 8, M20, and M 21.
M8 is the emissions nebula on the right side of the photograph. It is also known as the Lagoon Nebula. Actually M8 is the small cluster of stars inside the emissions nebula. The star cluster was discovered by Flamsteed in 1680 and the emissions nebula by LeGentil in 1749. Both are approximately 4310 light years from earth and are located in the constellation Sagittarius.
M20, also called the Trifid Nebula, is the emissions nebula on the left side of the photograph. It was discovered by Messier in 1764. It is 2660 light years from earth and located in the constellation Sagittarius.
M21 is the open star cluster below and slightly to the left of M20. It has no name. It was discovered by Messier in 1764 and is about 3930 light years from earth and is also in the constellation of Sagittarius.
The photograph was made on the night of 1 July 2014 in Marathon Greece using a Canon Rebel XS unmodified DSLR, an Orion ST 80A telescope (f/5 80mm refractor), a Skywatcher SynScan AZ goto mount, and an Astronomik CLS light pollution reduction filter. Total integrated exposure time was 28 minutes (56x30seconds).
M8 M20 M21
This image has three Messier Objects; M 8, M20, and M 21.
M8 is the emissions nebula on the right side of the photograph. It is also known as the Lagoon Nebula. Actually M8 is the small cluster of stars inside the emissions nebula. The star cluster was discovered by Flamsteed in 1680 and the emissions nebula by LeGentil in 1749. Both are approximately 4310 light years from earth and are located in the constellation Sagittarius.
M20, also called the Trifid Nebula, is the emissions nebula on the left side of the photograph. It was discovered by Messier in 1764. It is 2660 light years from earth and located in the constellation Sagittarius.
M21 is the open star cluster below and slightly to the left of M20. It has no name. It was discovered by Messier in 1764 and is about 3930 light years from earth and is also in the constellation of Sagittarius.
The photograph was made on the night of 1 July 2014 in Marathon Greece using a Canon Rebel XS unmodified DSLR, an Orion ST 80A telescope (f/5 80mm refractor), a Skywatcher SynScan AZ goto mount, and an Astronomik CLS light pollution reduction filter. Total integrated exposure time was 28 minutes (56x30seconds).