About: Phi2 Hydrae

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Phi2 Hydrae, Latinized from φ2 Hydrae, is a star in the constellation Hydra. It originally received the Flamsteed designation of 1 Crateris before being placed in the Hydra constellation. Based upon an annual parallax shift of 4.31 mas as seen from Earth, it is located roughly 760 light years from the Sun. The star is faintly visible to the naked with an apparent visual magnitude of 6.09. It forms a triangle with the fainter φ1 Hydrae and the brighter φ3 Hydrae, between μ Hydrae and ν Hydrae.

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  • Phi2 Hydrae, Latinized from φ2 Hydrae, is a star in the constellation Hydra. It originally received the Flamsteed designation of 1 Crateris before being placed in the Hydra constellation. Based upon an annual parallax shift of 4.31 mas as seen from Earth, it is located roughly 760 light years from the Sun. The star is faintly visible to the naked with an apparent visual magnitude of 6.09. It forms a triangle with the fainter φ1 Hydrae and the brighter φ3 Hydrae, between μ Hydrae and ν Hydrae. This is an evolved red giant star with a stellar classification of M1 III. It is currently on the asymptotic giant branch, and is a semiregular variable that undergoes changes in luminosity according to three pulsation periods. The star is radiating an estimated 703 times the Sun's luminosity from its photosphere at an effective temperature of 3,791 K. Phi2 Hydrae has a faint visual companion: a magnitude 12.20 star at an angular separation of 3.50 arc seconds along a position angle of 280°, as of 1959. (en)
  • Fi2 Hydrae (φ2 Hydrae, förkortat Fi2 Hya, φ2 Hya) är en ensam stjärna belägen i den mellersta delen av stjärnbilden Vattenormen. Den hade ursprungligen Flamsteedbeteckningen 1 Crateris innan den placerades i Vattenormens stjärnbild. Den har en skenbar magnitud på 6,09 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 4,3 mas, beräknas den befinna sig på ett avstånd på ca 760 ljusår (ca 230 parsek) från solen. (sv)
  • Phi2 Hydrae (Hydrae) é uma estrela na direção da constelação de Hydra. Possui uma ascensão reta de 10h 36m 16.68s e uma declinação de −16° 20′ 39.6″. Sua magnitude aparente é igual a 6.01. Considerando sua distância de 967 anos-luz em relação à Terra, sua magnitude absoluta é igual a −1.35. Pertence à classe espectral M1III. (pt)
  • 张宿增三(長蛇座φ²),又名BD-15 3087,HD 91880、SAO 156093、HR 4156,是長蛇座的一颗恒星,视星等为6.03,位于銀經261.94,銀緯35.55,其B1900.0坐标为赤經10h 31m 23.6s,赤緯-15° 35.55′ 35″。 (zh)
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  • −0.80 (en)
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  • 6.094300 (xsd:double)
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  • +1.64 (en)
dbp:class
  • M1 III (en)
dbp:constell
dbp:epoch
dbp:equinox
  • J2000.0 (en)
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  • 703 (xsd:integer)
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  • 0.330000 (xsd:double)
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  • 4.310000 (xsd:double)
dbp:propMoDec
  • +2.31 (en)
dbp:propMoRa
  • −29.14 (en)
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  • 3791 (xsd:integer)
dbp:uB
  • +1.95 (en)
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rdfs:comment
  • Fi2 Hydrae (φ2 Hydrae, förkortat Fi2 Hya, φ2 Hya) är en ensam stjärna belägen i den mellersta delen av stjärnbilden Vattenormen. Den hade ursprungligen Flamsteedbeteckningen 1 Crateris innan den placerades i Vattenormens stjärnbild. Den har en skenbar magnitud på 6,09 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 4,3 mas, beräknas den befinna sig på ett avstånd på ca 760 ljusår (ca 230 parsek) från solen. (sv)
  • Phi2 Hydrae (Hydrae) é uma estrela na direção da constelação de Hydra. Possui uma ascensão reta de 10h 36m 16.68s e uma declinação de −16° 20′ 39.6″. Sua magnitude aparente é igual a 6.01. Considerando sua distância de 967 anos-luz em relação à Terra, sua magnitude absoluta é igual a −1.35. Pertence à classe espectral M1III. (pt)
  • 张宿增三(長蛇座φ²),又名BD-15 3087,HD 91880、SAO 156093、HR 4156,是長蛇座的一颗恒星,视星等为6.03,位于銀經261.94,銀緯35.55,其B1900.0坐标为赤經10h 31m 23.6s,赤緯-15° 35.55′ 35″。 (zh)
  • Phi2 Hydrae, Latinized from φ2 Hydrae, is a star in the constellation Hydra. It originally received the Flamsteed designation of 1 Crateris before being placed in the Hydra constellation. Based upon an annual parallax shift of 4.31 mas as seen from Earth, it is located roughly 760 light years from the Sun. The star is faintly visible to the naked with an apparent visual magnitude of 6.09. It forms a triangle with the fainter φ1 Hydrae and the brighter φ3 Hydrae, between μ Hydrae and ν Hydrae. (en)
rdfs:label
  • Phi2 Hydrae (en)
  • Phi2 Hydrae (pt)
  • Fi2 Hydrae (sv)
  • 张宿增三 (zh)
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  • Phi2 Hydrae (en)
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