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]
| 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] |
| Distance | 1,450 ± 50 ly (450 ± 20 pc) |
| Details | |
| Mass | 4.07[6] M☉ |
| Radius | 172[7] R☉ |
| Luminosity | 3,454[8] L☉ |
| Temperature | 3,675[7] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
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
edit- ^ "Hipparcos Tools Interactive Data Access". Hipparcos. ESA. Retrieved 8 December 2021.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ "V854 Ara -- Pulsating variable Star", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2012-08-03.
- ^ 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.
- ^ Adelman, S. J. (October 2000), "On the Variability of K5-M Stars", Information Bulletin on Variable Stars, 4959 (1): 1, Bibcode:2000IBVS.4959....1A.
External links
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