R Arae
| dec= | appmag_v=6.17 (- 6.20) - 7.32 }}| r-i = | v-r = | b-v = 0.10 | u-b = | variable= Algol }}
| prop_mo_dec= | parallax=3.3603 | p_error=0.0647 | parallax_footnote= | absmag_v= + }} }}
| eccentricity = 0 | k1 = 55.3 | k2 = 181.6 | inclination = 78.0 }}
R Arae is an Algol-type eclipsing binary in the constellation Ara. Located approximately 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 away. The companion star is at a similar distance. Provided by Wikipedia
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3programme and meeting document bibliotecaUNESCO
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4programme and meeting document bibliotecaUNESCO
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9Journal Contribution bibliotecaUNESCO
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11Journal Contribution bibliotecaUNESCO
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12Texto bibliotecaFAO IT
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13Digital revistaSCIELO
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14by Ferreira,A.R.A., Silva,W.M., Souza,M.R., Ziemer,L.C., Martins Filho,E.F., Guimarães,J.E., Costa Neto,J.M.
Published 2015Digital revistaSCIELO -
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16by Primavesi,A.C.P. de A., Nogueira,A.R.A., Primavesi,O., Godoy,R., Batista,L.A.R., Novaes,N.J., França-Dantas,M.S.
Published 1994Digital revistaSCIELO -
17by Leite,A.I., Queiroz,A.R.A. de, Moreira,J.O., Batista,J.S., Pereira Neto,E., Mendes,C.G., Silva,J.B.A. da
Published 2009Digital revistaSCIELO -
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