Astronomy:IRAS 04509-6922
From HandWiki
Short description: Red supergiant in the Large Magellanic cloud
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Dorado |
| Right ascension | 04h 50m 40.46631s[1] |
| Declination | −69° 17′ 31.8421″[1] |
| Characteristics | |
| Evolutionary stage | Asymptotic giant branch[2] |
| Spectral type | M10[3] |
| Variable type | Mira[2] |
| Astrometry | |
| Proper motion (μ) | RA: 1.510[1] mas/yr Dec.: 0.0491[1] mas/yr |
| Absolute magnitude (MV) | -7.28[3] |
| Details[3] | |
| Mass | 7 M☉ |
| Radius | 1,360 R☉ |
| Luminosity | 65,000 L☉ |
| Temperature | 2,500 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
IRAS 04509-6922 is a red supergiant star or red hypergiant in the Large Magellanic Cloud. It is one of the largest stars, with a size of nearly 1400 solar radii. If placed in the Solar System, its photosphere would engulf the orbit of Jupiter. This star has a low metallicity.[3] This is a Mira-type variable star currently on the asymptotic giant branch and shrouded in dust. It is pulsating with a period of 1,259±6 d and an amplitude of 0.72±0.04 mag..[2]
References
- ↑ 1.0 1.1 1.2 1.3 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 2.0 2.1 2.2 Groenewegen, M. A. T. et al. (April 2020). "The VMC Survey. XXXVII. Pulsation periods of dust-enshrouded AGB stars in the Magellanic Clouds". Astronomy & Astrophysics 636: 31. doi:10.1051/0004-6361/201937271. A48. Bibcode: 2020A&A...636A..48G.
- ↑ 3.0 3.1 3.2 3.3 Marshall, Jonathan R. et al. (2004). "The AGB superwind speed at low metallicity". Monthly Notices of the Royal Astronomical Society 355 (4): 1348. doi:10.1111/j.1365-2966.2004.08417.x. Bibcode: 2004MNRAS.355.1348M.
- ↑ "IRAS 04509-6922". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=IRAS+04509-6922.
 |
