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17 Aquarii, abbreviated 17 Aqr, is a spectroscopic binary star system in the constellation of Aquarius. 17 Aquarii is the Flamsteed designation. It appears to the naked eye as a faint sixth magnitude star, having a combined apparent visual magnitude of 5.99. The distance to 17 Aqr can be estimated from its annual parallax shift of 4.9 mas, which yields a separation of around 660 light years. It is moving further away with a heliocentric radial velocity of 18 km/s.

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  • 17 d'Aquari (ca)
  • 17 Aquarii (en)
  • 17 Aquarii (it)
  • 17 Водолея (ru)
  • 17 Aquarii (sv)
  • 天壘城十二 (zh)
rdfs:comment
  • 17 d'Aquari (17 Aquarii) és una estrella de la Constel·lació d'Aquari. Té una magnitud aparent de 5,99. (ca)
  • 17 Aquarii è una stella gigante rossa di magnitudine 6 situata nella costellazione dell'Aquario. Dista 720 anni luce dal sistema solare. (it)
  • 17 Aquarii, som är stjärnans Flamsteed-beteckning, är en dubbelstjärna belägen i den östra delen av stjärnbilden Vattumannen.Den har en kombinerad skenbar magnitud på 5,99 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 4,9 mas, beräknas den befinna sig på ett avstånd på ca 660 ljusår (ca 204 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radiell hastighet på ca 18 km/s. (sv)
  • 17 Водолея (лат. 17 Aquarii, HD 203525) — двойная звезда в созвездии Водолея на расстоянии приблизительно 664 световых лет (около 204 парсеков) от Солнца. Видимая звёздная величина звезды — +5,965m. Орбитальный период — около 7290 суток (20 лет). (ru)
  • 天壘城十二(寶瓶座17 ,縮寫為17 Aqr)是在寶瓶座的一顆光譜聯星,佛氏命名法的名稱是寶瓶座17。以裸眼觀察,這是一顆黯淡的6等星,實際上兩顆星,合成的視星等是5.99等。從4.9 的年周視差可以估計天壘城十二的距離,大約是660光年。它正以相對日心每秒18公里的徑向速度遠離而去。 對這一對聯星的初步軌道估計給出的軌道週期是20年,以及離心率是0.4 。主星是顆老年的巨星,光譜類型為K4/5 III,來自光球的輻射量在有效溫度3,951K是太陽的495倍。 (zh)
  • 17 Aquarii, abbreviated 17 Aqr, is a spectroscopic binary star system in the constellation of Aquarius. 17 Aquarii is the Flamsteed designation. It appears to the naked eye as a faint sixth magnitude star, having a combined apparent visual magnitude of 5.99. The distance to 17 Aqr can be estimated from its annual parallax shift of 4.9 mas, which yields a separation of around 660 light years. It is moving further away with a heliocentric radial velocity of 18 km/s. (en)
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  • 17 Aquarii (en)
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absmag v
  • −0.73 (en)
appmag v
class
  • K4/5 III (en)
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constell
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