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HR 515 is a variable star in the zodiac constellation of Pisces, near the eastern constellation border with Aries. Before the constellation borders were officially set, it held the Flamsteed designation of 3 Arietis, abbreviated 3 Ari). This star has the variable star designation VY Piscium, or VY Psc for short. It is a white-hued star that is near the lower limit of visibility to the naked eye with an apparent visual magnitude that ranges from 6.54 down to 6.59. Parallax measurements provide a distance estimate of approximately 570 light years from the Sun.

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  • HR 515 (en)
  • 3 Arietis (sv)
  • 娄宿增二 (zh)
rdfs:comment
  • 3 Arietis, eller VY Piscium, är en pulserande variabel av Delta Scuti-typ (DSCTC) i Vädurens stjärnbild. Trots sin Flamsteed-beteckning tillhör den inte Valfiskens stjärnbild. Den ligger på gränsen mellan stjärnbilderna och fick byta tillhörighet vid översynen av gränser mellan stjärnbilderna år 1930 och benämns efter bytet av stjärnbild ofta med sin HD-beteckning, HD 10845 eller variabeldesignation VY Piscium. Stjärnan varierar mellan visuell magnitud +6,54 och 6,59 med en period av 0,2 dygn eller 5 timmar. 3 Arietis befinner sig på ett avstånd av ungefär 455 ljusår. (sv)
  • 白羊座3(娄宿增二,3 Ari,双鱼座VY)一个盾牌座δ变星,视星等为+6.55。虽然它在佛氏命名法中被冠以白羊座,但它实际上位于双鱼座,靠近双鱼座与白羊座的边界。它的变星名称是双鱼座VY。 (zh)
  • HR 515 is a variable star in the zodiac constellation of Pisces, near the eastern constellation border with Aries. Before the constellation borders were officially set, it held the Flamsteed designation of 3 Arietis, abbreviated 3 Ari). This star has the variable star designation VY Piscium, or VY Psc for short. It is a white-hued star that is near the lower limit of visibility to the naked eye with an apparent visual magnitude that ranges from 6.54 down to 6.59. Parallax measurements provide a distance estimate of approximately 570 light years from the Sun. (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/VYPscLightCurve.png
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absmag v
appmag v
class
  • A8 III or F0V (en)
constell
epoch
  • J2000 (en)
p error
parallax
prop mo dec
  • + 2.819 (en)
prop mo ra
  • +48.949 (en)
rotational velocity
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