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The Greek constellation of Hydra is an adaptation of a Babylonian constellation: the MUL.APIN includes a "serpent" constellation (MUL.DINGIR.MUŠ) that loosely corresponds to Hydra. It is one of two Babylonian "serpent" constellations (the other being the origin of the Greek Serpens), a mythological hybrid of serpent, lion and bird. [2]
NGC 2848 is an intermediate spiral galaxy in the constellation of Hydra. Its velocity with respect to the cosmic microwave background is 2,361 ± 23 km/s, which corresponds to a Hubble distance of 34.82 ± 2.46 Mpc (∼114 million light-years). [1] It was discovered by German-British astronomer William Herschel on 31 December 1785.
NGC 3200 is a large spiral galaxy located in the constellation Hydra. Its velocity relative to the cosmic microwave background is 3,877 ± 25 km/s, which corresponds to a Hubble distance of 57.2 ± 4.0 Mpc (~187 million ly). NGC 3200 was discovered by American astronomer Edward Singleton Holden in 1882. [1]
NGC 4993 (also catalogued as NGC 4994 in the New General Catalogue) is a lenticular galaxy [5] located about 140 million light-years away [2] in the constellation Hydra. [6] It was discovered on 26 March 1789 [7] by William Herschel [6] [7] and is a member of the NGC 4993 Group. [3]
NGC 3315 is a lenticular galaxy located about 185 million light-years away [2] in the constellation Hydra. [3] It was discovered by astronomer Edward Austin on March 24, [ 4 ] 1870. [ 4 ] [ 5 ] It is a member of the Hydra Cluster .
NGC 2835 is an intermediate spiral galaxy located in the constellation Hydra. It is located at a distance of circa 35 million light years from Earth, which, given its apparent dimensions, means that NGC 2835 is about 65,000 light years across. It was discovered by Wilhelm Tempel on April 13, 1884. [3]
NGC 3336 is a barred spiral galaxy [2] [3] located about 190 million light-years away [4] in the constellation Hydra. [2] It was discovered by astronomer John Herschel on March 24, 1835. [5] [3] NGC 3336 is a member of the Hydra Cluster. [6] One supernova has been observed in NGC 3336: SN 1984S (type unknown, mag. 16.8) was discovered by Paul ...
NGC 3305 is an elliptical galaxy located about 190 million light-years away [2] in the constellation Hydra. [3] The galaxy was discovered by astronomer John Herschel on March 24, 1835. [ 4 ] [ 5 ] NGC 3305 is a member of the Hydra Cluster .