IRAS 04509-6922
IRAS 04508-6922 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 our 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]
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| 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.: 0.049[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 |
References
- 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.
- 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. arXiv:2003.04025. Bibcode:2020A&A...636A..48G. doi:10.1051/0004-6361/201937271. A48.
- Marshall, Jonathan R.; et al. (2004). "The AGB superwind speed at low metallicity". Monthly Notices of the Royal Astronomical Society. 355 (4): 1348. arXiv:astro-ph/0410120. Bibcode:2004MNRAS.355.1348M. doi:10.1111/j.1365-2966.2004.08417.x.
- "IRAS 04509-6922". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-01-14.
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