![]() There are 13 non-Messier deep space objects that are covered on this site and the list is below.There are 3 deep space objects that were identified by Charles Messier in this constellation.The current largest star so far identified in the constellation of Hydra is W Hydrae.There is a dedicated page for exoplanets in Hydra. There are 32 Extrasolar Planets (Exoplanets) in this constellation that are detailed on this site.The Zodiac constellations are based on the Ecliptic. The Earth is titled at 23.44° which is why the two differ. The Ecliptic is the path that the Earth takes round the Sun. The Celestial Equator is the projection of the terrestrial equator into space. Hydra lies south of the Ecliptic which is different to the Celestial Equator. ![]() Hydra is an equatorial celestial constellation.Hydra is not a member of the Zodiac group of twelve constellations that appear when the Sun sets.There are 276 stars that can be seen with the naked eye in the constellation on a very clear night sky. The hipparcos satellite scanned and detailed 3038 stars. Hydra has 19 stars that make up the constellation.The constellation is one of the original constellations that was devised by the Ancient Greco-Egyptian astronomer Ptolemy who lived between 90 A.D.The constellation name means The Water Monster.Hydra is the 1st largest in terms of size in the night sky. degrees of the night sky which equates to 3.16% of the night sky. Hydra (Constellation) takes up 1302.844 sq.An object or animal may be mythical (e.g. A constellation is a pattern of stars in a recognisable shape that is supposed to resemble an object, animal or mythical person.Hydra Constellation (Pronounciation:Hi-dra, Abbrev:Hya, Latin:Hydrae) is one of 88 constellations recognised by the International Astronomical Union ( I.A.U.).
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