astro.wikisort.org - StarT 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]
Variable star in the constellation Norma
T Nor
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Observation data Epoch J2000 Equinox J2000 |
Constellation |
Norma |
Right ascension |
15h 44m 03.83966s[2] |
Declination |
−54° 59′ 12.5184″[2] |
Apparent magnitude (V) |
6.2-13.6[3] |
Characteristics |
Spectral type |
M3e-M6e[3] (-M9[4]) |
U−B color index |
+0.76 - +1.09[5] |
B−V color index |
+1.42 - +1.87 |
Variable type |
Mira |
Astrometry |
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|
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Proper motion (μ) | RA: −10.02[2] mas/yr Dec.: −11.55[2] mas/yr |
Parallax (π) | 3.61 ± 1.25 mas[2] |
Distance | 500[6] pc |
Absolute magnitude (MV) | −1.01 - 3.63[6] |
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Details |
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Luminosity | 760[7] L☉ |
Temperature | 3,234 K[7] K |
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Other designations |
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T Normae, CPD−54° 6651, HIP 77058, HD 140041, AAVSO 1536-54 |
Database references |
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SIMBAD | data |
References
- "Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.
- 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.
- 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.
- 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.
- 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.
Constellation of Norma |
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Stars | Bayer | |
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Variable | |
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HR |
- 5798
- 5803
- 5832
- 5836
- 5865
- 5869
- 5871
- 5872
- 5882
- 5900
- 5921
- 5937
- 5946
- 5979
- 6040
- 6049
- 6059
- 6473
- 6083
- 6085
- 6099
- 6114
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HD | |
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Other | |
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 Category |
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