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U Sagittae is an eclipsing binary star system in the northern constellation of Sagitta. It has been actively studied since its discovery in 1901. The maximum apparent visual magnitude of this system is 6.50, which is near the lower limit of visibility to the naked eye. The system is located at a distance of approximately 868 light years from the Sun based on parallax measurements, but is drifting closer with a radial velocity of −17 km/s. It is positioned about 2° from the middle of the Collinder 399 asterism, but lies much further away than the purported member stars.

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  • U Sagittae (es)
  • U Sagittae (en)
  • U Sagittae (sv)
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  • U Sagittae (U Sge)​ es una estrella variable en la constelación de Sagitta, la flecha.Visualmente se localiza a poco menos de 2º al sur de 1 Vulpeculae.Su magnitud aparente media es +6,50 y se encuentra a 782 años luz del Sistema Solar. (es)
  • U Sagittae är en dubbelstjärna och kortperiodisk förmörkelsevariabel av Algol-typ (EA/DS) i stjärnbilden Pilen. Stjärnan har en magnitud mellan 6,45 och 9,28 med en period av 3,38061933 dygn. (sv)
  • U Sagittae is an eclipsing binary star system in the northern constellation of Sagitta. It has been actively studied since its discovery in 1901. The maximum apparent visual magnitude of this system is 6.50, which is near the lower limit of visibility to the naked eye. The system is located at a distance of approximately 868 light years from the Sun based on parallax measurements, but is drifting closer with a radial velocity of −17 km/s. It is positioned about 2° from the middle of the Collinder 399 asterism, but lies much further away than the purported member stars. (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/USgeLightCurve.png
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  • (en)
absmag v
  • −0.36 (en)
appmag v
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  • −0.006 (en)
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  • (en)
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