Teide 1
 Estimated relative size of the planet Jupiter and the brown dwarfs WISE 1828+2650, Gliese 229B, and Teide 1 compared to the Sun and a red dwarf. Credit: MPIA/V. Joergens. | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Taurus |
| Right ascension | 3h 47m 17.925s[1] |
| Declination | +24° 22′ 31.71″[1] |
| Characteristics | |
| Spectral type | M8[2] |
| Apparent magnitude (J) | 16.215[1] |
| Apparent magnitude (H) | 15.591[1] |
| Apparent magnitude (K) | 15.096[1] |
| Astrometry | |
| Proper motion (μ) | RA: 21.40[2] mas/yr Dec.: -42.73[2] mas/yr |
| Parallax (π) | 8.40 mas |
| Distance | 400 ly (120 pc) |
| Details | |
| Mass | 57 ± 15[3] MJup |
| Radius | 3.78[3] RJup |
| Luminosity | 0.0008–0.0005[4] L☉ |
| Surface gravity (log g) | 6.6[citation needed] cgs |
| Temperature | 2,600 ± 150[5] K |
| Age | 0.12[citation needed] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
Teide 1 was the first brown dwarf to be verified, in 1995.[6] It is located in the Pleiades open star cluster, approximately 400 light-years (120 pc) from Earth.
This object is more massive than a planet (57 ± 15 MJ),[5] but less massive than a star (0.0544 MSun). The radius of the brown dwarf is four times that of Jupiter. Its surface temperature is 2,600 ± 150 K,[5] which is about half that of the Sun. Its luminosity is 0.08–0.05% of that of the Sun.[4] Its age is only 120 million years compared to the Sun's age of 4.68 billion years.
References
- ^ a b c d e Cutri, R. M. (2003). "2MASS All-Sky Catalog of Point Sources". VizieR On-line Data Catalog. Bibcode:2003yCat.2246....0C.
- ^ a b c d "2MASS J03471792+2422317". SIMBAD. Centre de données astronomiques de Strasbourg.
- ^ a b "All Exoplanets". Exoplanet Kyoto.
- ^ a b Brown dwarfs in the Pleiades cluster confirmed by the lithium test
- ^ a b c Mid-IR Observations of the Pleiades Brown Dwarfs Teide 1 & Calar 3 (Leech 2000)
- ^ Rebolo, Rafael (2014), "Teide 1 and the Discovery of Brown Dwarfs", in Joergens, Viki (ed.), 50 Years of Brown Dwarfs - From Prediction to Discovery to Forefront of Research, Astrophysics and Space Science Library, vol. 401, Springer, pp. 25–50, ISBN 978-3-319-01162-2
External links
- Walter Myers (1995). "Teide 1". Archived from the original on 2009-05-02.
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