Variable star in the constellation Norma
T Normae is a Mira variable star. It is located midway between Eta Normae and Gamma Circini .[8] It ranges from magnitude 6.2 to 13.6 and a period of 244 days.[3] Located around 900 light-years distant, it shines with a luminosity 760 times that of the Sun and has a surface temperature of 3234 K.[7]
References
^ "Download Data" . aavso.org . AAVSO. Retrieved 1 October 2021 .
^ a b c d e van Leeuwen, F. (2007). "Validation of the New Hipparcos Reduction". Astronomy and Astrophysics . 474 (2): 653–64. arXiv :0708.1752 . Bibcode :2007A&A...474..653V . doi :10.1051/0004-6361:20078357 . S2CID 18759600 .
^ a b c Otero, Sebastian Alberto (19 March 2011). "T Normae" . AAVSO Website . American Association of Variable Star Observers . Retrieved 21 March 2015 .
^ Crowe, Richard A.; Garrison, Robert F. (1988). "The visible spectra of Southern Hemisphere Mira variable stars" . Astrophysical Journal Supplement Series . 66 : 69. Bibcode :1988ApJS...66...69C . doi :10.1086/191247 .
^ Celis s., L. (1986). "UBVRI photometry of red stars". Astrophysical Journal Supplement Series . 60 : 879. Bibcode :1986ApJS...60..879C . doi :10.1086/191103 .
^ a b Celis, L. (1995). "Lumnosity attenuation and distances of red giant stars". Astrophysical Journal Supplement Series . 98 : 701. Bibcode :1995ApJS...98..701C . doi :10.1086/192175 .
^ a b c McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars". Monthly Notices of the Royal Astronomical Society . 427 (1): 343–57. arXiv :1208.2037 . Bibcode :2012MNRAS.427..343M . doi :10.1111/j.1365-2966.2012.21873.x . S2CID 118665352 .
^ Arnold, H.J.P.; Doherty, Paul; Moore, Patrick (1999). The Photographic Atlas of the Stars . Boca Raton, Florida: CRC Press . p. 176. ISBN 978-0-7503-0654-6 .