Langbahn Team – Weltmeisterschaft

HD 155035

HD 155035

A light curve for V854 Arae, plotted from Hipparcos data[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Ara
Right ascension 17h 11m 38.68606s[2]
Declination –48° 52′ 24.2049″[2]
Apparent magnitude (V) 5.92[3]
Characteristics
Spectral type M1.5 III[4]
B−V color index +1.82[3]
Variable type LB[5]
Astrometry
Proper motion (μ) RA: 7.600[2] mas/yr
Dec.: –6.378[2] mas/yr
Parallax (π)2.2444 ± 0.0772 mas[2]
Distance1,450 ± 50 ly
(450 ± 20 pc)
Details
Mass4.07[6] M☉
Radius172[7] R☉
Luminosity3,454[8] L☉
Temperature3,675[7] K
Other designations
V854 Arae, CD–48 11492, HD 155035, HIP 84105, HR 6374, SAO 227699, V854 Ara[9]
Database references
SIMBADdata

HD 155035 is a star in the constellation Ara, the Altar. It is located at a distance of approximately 1,450 light-years (450 parsecs)[2] from Earth and has an apparent visual magnitude of 5.92,[3] making it is faintly visible to the naked eye. This is a red giant star with a stellar classification of M1.5 III.[4]

The Hipparcos data revealed that HD 155035 is a variable star. It was given its variable star designation, V854 Arae, in 1999.[10] It's an irregular variable that changes brightness over an amplitude range of 0.12 magnitudes.[11]

References

  1. ^ "Hipparcos Tools Interactive Data Access". Hipparcos. ESA. Retrieved 8 December 2021.
  2. ^ a b c d e f Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  3. ^ a b c Corben, P. M.; Stoy, R. H. (1968), "Photoelectric Magnitudes and Colours for Bright Southern Stars", Monthly Notes of the Astronomical Society of Southern Africa, 27: 11, Bibcode:1968MNSSA..27...11C.
  4. ^ a b Houk, Nancy (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 2, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode:1978mcts.book.....H.
  5. ^ Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1. Bibcode:2009yCat....102025S.
  6. ^ Kervella, Pierre; Arenou, Frédéric; Thévenin, Frédéric (2022). "Stellar and substellar companions from Gaia EDR3". Astronomy & Astrophysics. 657: A7. arXiv:2109.10912. Bibcode:2022A&A...657A...7K. doi:10.1051/0004-6361/202142146. S2CID 237605138.
  7. ^ a b Stassun K.G.; et al. (October 2019). "The revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. S2CID 166227927.
  8. ^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  9. ^ "V854 Ara -- Pulsating variable Star", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2012-08-03.
  10. ^ Kazarovets, E. V.; Samus, N. N.; Durlevich, O. V.; Frolov, M. S.; Antipin, S. V.; Kireeva, N. N.; Pastukhova, E. N. (January 1999). "The 74th Special Name-list of Variable Stars". Information Bulletin on Variable Stars. 4659. Bibcode:1999IBVS.4659....1K. Retrieved 25 November 2024.
  11. ^ Adelman, S. J. (October 2000), "On the Variability of K5-M Stars", Information Bulletin on Variable Stars, 4959 (1): 1, Bibcode:2000IBVS.4959....1A.


Quelle: https://en.wikipedia.org/wiki/HD_155035