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17 Crateris is a wide binary star system in the equatorial constellation of Hydra, located 90.5 light years away from the Sun. It is visible to the naked eye as a faint, yellow-white hued star with a combined apparent visual magnitude of 4.93. The system is traversing the celestial sphere with a relative proper motion of 24.9 mas/y, and is moving away from the Earth with a heliocentric radial velocity of +5.8 km/s.

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  • 17 Crateris (en)
  • 17 Crateris (sv)
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  • 17 Crateris, som är stjärnans Flamsteed-beteckning, är en vid dubbelstjärna belägen i den södra delen av stjärnbilden Vattenormen. Den har en kombinerad skenbar magnitud på 4,93 och är synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 36,0 mas, beräknas den befinna sig på ett avstånd på ca 90 ljusår (ca 28 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet på ca 6 km/s. (sv)
  • 17 Crateris is a wide binary star system in the equatorial constellation of Hydra, located 90.5 light years away from the Sun. It is visible to the naked eye as a faint, yellow-white hued star with a combined apparent visual magnitude of 4.93. The system is traversing the celestial sphere with a relative proper motion of 24.9 mas/y, and is moving away from the Earth with a heliocentric radial velocity of +5.8 km/s. (en)
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age gyr
appmag v
class
  • (en)
  • F8V + F8V (en)
component
constell
epoch
  • J2000 (en)
gravity
luminosity
mass
p error
parallax
prop mo dec
  • +139.982 (en)
  • +144.524 (en)
prop mo ra
  • −19.601 (en)
  • −22.025 (en)
rotational velocity
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