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- R Arae is an Algol-type eclipsing binary in the constellation Ara. Located approximately 298 parsecs (970 ly) distant, it normally shines at magnitude 6.17, but during eclipses can fall as low as magnitude 7.32. It has been suggested by multiple studies that mass transfer is occurring between the two stars of this system, and the period of eclipses seems to be increasing over time. The primary is a blue-white main sequence star of spectral type B5V that is 5 times as massive as the Sun, while the secondary is a yellow-white star of spectral type F1IV that is 1.5 times as massive as the Sun. Stellar material is being stripped off the secondary and accreting on the primary. R Arae has an 8th-magnitude companion 3″ away. The companion star is at a similar distance. (en)
- R Arae è una stella bianco-azzurra di sequenza principale di magnitudine 6,65 situata nella costellazione dell'Altare. Dista 262 anni luce dal sistema solare ed è una stella variabile. (it)
- R Arae är en multipelstjärna och kortperiodisk förmörkelsevariabel av Algol-typ (EA) i stjärnbilden Altaret. Stjärnan var den första i Altarets stjärnbild som fick en variabelbeteckning. Stjärnan har en visuell magnitud mellan 6,17 och 7,32 med en period av 4,42522 dygn. (sv)
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- R Arae è una stella bianco-azzurra di sequenza principale di magnitudine 6,65 situata nella costellazione dell'Altare. Dista 262 anni luce dal sistema solare ed è una stella variabile. (it)
- R Arae är en multipelstjärna och kortperiodisk förmörkelsevariabel av Algol-typ (EA) i stjärnbilden Altaret. Stjärnan var den första i Altarets stjärnbild som fick en variabelbeteckning. Stjärnan har en visuell magnitud mellan 6,17 och 7,32 med en period av 4,42522 dygn. (sv)
- R Arae is an Algol-type eclipsing binary in the constellation Ara. Located approximately 298 parsecs (970 ly) distant, it normally shines at magnitude 6.17, but during eclipses can fall as low as magnitude 7.32. It has been suggested by multiple studies that mass transfer is occurring between the two stars of this system, and the period of eclipses seems to be increasing over time. The primary is a blue-white main sequence star of spectral type B5V that is 5 times as massive as the Sun, while the secondary is a yellow-white star of spectral type F1IV that is 1.5 times as massive as the Sun. Stellar material is being stripped off the secondary and accreting on the primary. (en)
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- R Arae (it)
- R Arae (en)
- R Arae (sv)
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