Trumpler 27-1
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Scorpius |
| Right ascension | 17h 36m 10.1193s[1] |
| Declination | −33° 29′ 40.617″[1] |
| Apparent magnitude (V) | 8.79[2] |
| Characteristics | |
| Evolutionary stage | Red supergiant |
| Spectral type | M0Ia[2] |
| Astrometry | |
| Radial velocity (Rv) | −18.71±0.9[1] km/s |
| Proper motion (μ) | RA: −0.057±0.049 mas/yr[1] Dec.: −1.386±0.037 mas/yr[1] |
| Parallax (π) | 0.3169 ± 0.0361 mas[1] |
| Distance | approx. 10,000 ly (approx. 3,200 pc) |
| Details[3] | |
| Radius | 1,359 R☉ |
| Luminosity | 361,000 L☉ |
| Surface gravity (log g) | -0.24[4] cgs |
| Temperature | 3,790 K |
| Metallicity [Fe/H] | +0.15[4] dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
Trumpler 27-1 is a red supergiant star that is a member of the massive, possible open cluster Trumpler-27, where a blue giant star, a yellow supergiant star, and two Wolf–Rayet stars are also located.
Observation history[edit]
Trumpler 27-1 was discovered and catalogued when the open cluster (not confirmed then) was first identified in the late 20th century.[citation needed] It has since remained largely unobserved, being featured in the Gaia Catalogue and other pieces of literature.[5]
Physical properties[edit]
Trumpler 27-1 is among the largest stars known, with a radius of over 1,360 solar radii. It is also 360,000 times more luminous than the Sun.[3] This star's spectral type is M0Ia,[6] meaning it possesses a cool temperature of below 3,800 K. So far, Trumpler 27-1 is the only identified red supergiant in the open cluster Trumpler 27.[citation needed]
Location[edit]
Trumpler 27–1, and the open cluster in which it is located, is in the constellation of Scorpius.
See also[edit]
References[edit]
- ^ a b c d e Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b c "CD-33 12241". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 17 July 2020.
- ^ a b Healy, Sarah; Horiuchi, Shunsaku; Molla, Marta Colomer; Milisavljevic, Dan; Tseng, Jeff; Bergin, Faith; Weil, Kathryn; Tanaka, Masaomi (23 March 2024). "Red Supergiant Candidates for Multimessenger Monitoring of the Next Galactic Supernova". Monthly Notices of the Royal Astronomical Society. 529 (4): 3630–3650. arXiv:2307.08785. Bibcode:2024MNRAS.529.3630H. doi:10.1093/mnras/stae738. ISSN 0035-8711.
- ^ a b Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevič, G.; Monari, G.; Cantat-Gaudin, T.; Weiler, M.; Khan, S.; Miglio, A.; Carrillo, I.; Romero-Gómez, M.; Minchev, I.; De Jong, R. S.; Antoja, T.; Ramos, P.; Steinmetz, M.; Enke, H. (2019). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy and Astrophysics. 628: A94. arXiv:1904.11302. Bibcode:2019A&A...628A..94A. doi:10.1051/0004-6361/201935765. S2CID 131780028.
- ^ Stassun, Keivan G.; et al. (1 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. hdl:1721.1/124721. ISSN 0004-6256. S2CID 166227927.
- ^ Messineo, M.; Brown, A. G. A. (2019). "A Catalog of Known Galactic K-M Stars of Class I Candidate Red Supergiants in Gaia DR2". The Astronomical Journal. 158 (1): 20. arXiv:1905.03744. Bibcode:2019AJ....158...20M. doi:10.3847/1538-3881/ab1cbd. S2CID 148571616.
