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Encyclopedia > Epsilon Hydrae
Epsilon Hydrae
Observation data
Epoch J2000.0
Constellation Hydra
Right ascension 8h 46m 46.6s
Declination 6° 25' 8"
Apparent magnitude (V) 3.38
Distance 135 ly
(41.41 pc)
Spectral type G5III
Other designations
11 Hydrae, HD 73262, HR 3482, SAO 117112, FK5 --, NSV 4244, BD +06 2036 , HIP 43109

Epsilon Hydrae (ε Hya / ε Hydrae) is a Class G5, third-magnitude star in the constellation Hydra. The Vedic-Hindu name Ashlesha, meaning "The Embracing One", is sometimes applied to this star. In astronomy, an epoch is a moment in time for which celestial coordinates or orbital elements are specified. ... It has been suggested that this article or section be merged into Julian epoch. ... This article or section does not cite its references or sources. ... Hydra (IPA: ) is the largest of the 88 modern constellations, and was also one of the 48 constellations listed by Ptolemy. ... Right ascension (RA; symbol α: Greek letter alpha) is the astronomical term for one of the two coordinates of a point on the celestial sphere when using the equatorial coordinate system. ... In astronomy, declination (dec) is one of the two coordinates of the equatorial coordinate system, the other being either right ascension or hour angle. ... // Headline text HEY!! HOW ARE YOU ALL?? Its nice of you to come read this page. ... Distance is a numerical description of how far apart things lie. ... A light year, abbreviated ly, is the distance light travels in one year: roughly 9. ... Stellar parallax motion The parsec (symbol pc) is a unit of length used in astronomy. ... In astronomy, stellar classification is a classification of stars based initially on photospheric temperature and its associated spectral characteristics, and subsequently refined in terms of other characteristics. ... In astronomy, many stars are referred to simply by catalogue numbers. ... The Henry Draper Catalogue is an astronomy catalogue with astrometric and spectroscopic data about more than 225,000 stars. ... In astronomy, many stars are referred to simply by catalogue numbers. ... In astronomy, many stars are referred to simply by catalogue numbers. ... In astronomy, many stars are referred to simply by catalogue numbers. ... In astronomy, stellar classification is a classification of stars based initially on photospheric temperature and its associated spectral characteristics, and subsequently refined in terms of other characteristics. ... The Pleiades, an open cluster of stars in the constellation of Taurus. ... This article or section does not cite its references or sources. ... Hydra (IPA: ) is the largest of the 88 modern constellations, and was also one of the 48 constellations listed by Ptolemy. ...


Epsilon Hydrae is a binary star with components of magnitudes 3.3 and 6.8, separated by 2.7 arcseconds. This stellar system is located about 135 light-years from Earth. A light-year, symbol ly, is the distance light travels in one year: exactly 9. ... Earth (IPA: , often referred to as the Earth, Terra, or Planet Earth) is the third planet in the solar system in terms of distance from the Sun, and the fifth largest. ...

References

  • HD 73262 -- Variable Star. SIMBAD Astronomical Database. Retrieved on 2006-11-05.

2006 (MMVI) is a common year starting on Sunday of the Gregorian calendar. ... November 5 is the 309th day of the year (310th in leap years) in the Gregorian Calendar, with 56 days remaining. ...

External links

  • Yale Bright Star Catalog; click on Hydra

  Results from FactBites:
 
Hydra (constellation) - definition of Hydra (constellation) in Encyclopedia (192 words)
R Hydrae is a Mira variable star that ranges in magnitude between 3.5, when it is easily visible to the naked eye, to 10.9, when a telescope is required to see it.
Epsilon Hydrae (ε Hya) is a binary star with components of magnitudes 3.3 and 6.8, separated by 2.7 arcseconds.
N Hydrae (N Hya) is a pair of stars of magnitudes 5.8 and 5.9.
Hydra - The Sea Serpent (532 words)
Hydra, the sea serpent, may be the longest and largest of all constellations, but its stars are very faint.
Hydra is the longest constellation in the sky and is also the largest in terms of area.
Hydra is the longest constellation in the sky (>90 degrees) and is also the largest in terms of area.
  More results at FactBites »


 

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