2MASS J08472872-1532372
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L-dwarf 2MASS J08472872-1532372 |
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| AladinLite | |||
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | Water snake | ||
| Right ascension | 08 h 47 m 28.72 s | ||
| declination | -15 ° 32 ′ 37.4 ″ | ||
| Typing | |||
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rel. Brightness (G-band) |
(18.38 ± 0.01) mag | ||
| rel. Brightness (J-band) |
(13.51 ± 0.03) mag | ||
| Spectral class | L1.5 | ||
| Astrometry | |||
| parallax | (56.92 ± 0.32) mas | ||
| distance | (57.27 ± 0.32) ly (17.56 ± 0.09) pc |
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| Proper movement | |||
| Rec. Share: | (132.70 ± 0.45) mas / a | ||
| Dec. portion: | (−199.75 ± 0.61) mas / a | ||
| Physical Properties | |||
| Dimensions | (0.06) M ☉ | ||
| radius | (0.10) R ☉ | ||
| Luminosity |
(0.98 ± 0.09) × 10 −4 L ☉ |
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| Effective temperature | (1794 ± 81) K. | ||
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Other names and catalog entries |
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2MASS J08472872-1532372 is an ultra-cool dwarf in the constellation Hydra . It belongs to the spectral class L1.5. It was published in 2003 by Kelle L. Cruz et al. discovered.
Web links
- Entry at DwarfArchives.org (English)
- Cruz, Kelle L .; et al .: Meeting the Cool Neighbors. V. A 2MASS-Selected Sample of Ultracool Dwarfs . In: The Astronomical Journal, 2003, Volume 126, Number 5, pp. 2421-2448. bibcode : 2003AJ .... 126.2421C (English)
Individual evidence
- ↑ a b c d e f 2MUCD 10764. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed October 12, 2019 .
- ↑ a b c d Joseph C. Filippazzo, Emily L. Rice, Jacqueline Faherty, Kelle L. Cruz, Mollie M. Van Gordon, Dagny L. Looper: Fundamental Parameters and Spectral Energy Distributions of Young and Field Age Objects with Masses Spanning the Stellar to Planetary Regime . In: The Astrophysical Journal . 810, No. 2, 2015, p. 158. arxiv : 1508.01767 . doi : 10.1088 / 0004-637X / 810/2/158 .