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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] The shape of Hydra resembles a twisting snake, and features as such in some Greek myths. One myth associates it with a water snake that a crow served Apollo in a cup when it was sent to ...
Its name means "male water snake", as opposed to Hydra, a much larger constellation that represents a female water snake. It remains below the horizon for most Northern Hemisphere observers. The brightest star is the 2.8- magnitude Beta Hydri , also the closest reasonably bright star to the south celestial pole .
This image is a derivative work of the following images: File:Hydra_constellation_map.png licensed with Cc-by-sa-3.0-migrated, GFDL 2004-12-12T18:12:45Z Alfio 2559x1419 (196865 Bytes) Hydra constellation map; Uploaded with derivativeFX
The modern constellation Hydra lies across two of the quadrants, symbolized by the Azure Dragon of the East (東方青龍, Dōng Fāng Qīng Lóng) and the Vermilion Bird of the South (南方朱雀, Nán Fāng Zhū Què), that divide the sky in traditional Chinese uranography.
This is the list of notable stars in the constellation Hydra, sorted by decreasing brightness. Name B F G. Var HD HIP RA Dec vis. mag. abs. mag. Dist. Sp. class Notes
Theta Hydrae, Latinized from θ Hydrae, is a binary star [8] system in the constellation Hydra.It is visible to the naked eye with an apparent visual magnitude of 3.9. [2] The star system has a high proper motion [8] with an annual parallax shift of 28.4 mas, [1] indicating a distance of about 115 light years.
TW Hydrae is a T Tauri star approximately 196 light-years away [1] in the constellation of Hydra (the Sea Serpent).TW Hydrae is about 80% of the mass of the Sun, but is only about 5-10 million years old.
Beta Hydrae, Latinized from β Hydrae, is a double star in the equatorial constellation of Hydra. [14] Historically, Beta Hydrae was designated 28 Crateris, but the latter fell out of use when the IAU defined the permanent constellation boundaries in 1930. [15]