2MASS J11553952-3727350
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L-dwarf 2MASS J11553952-3727350 |
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| AladinLite | |||||
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | centaur | ||||
| Right ascension | 11 h 55 m 39.54 s | ||||
| declination | -37 ° 27 ′ 35.5 ″ | ||||
| Typing | |||||
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rel. Brightness (G-band) |
(17.65 ± 0.01) mag | ||||
| rel. Brightness (J-band) |
(12.81 ± 0.02) mag | ||||
| Spectral class | L2.3 V | ||||
| Astrometry | |||||
| Radial velocity | (46 ± 2) km / s | ||||
| parallax | (84.57 ± 0.19) mas | ||||
| distance | (38.55 ± 0.09) ly (11.82 ± 0.03) pc |
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| Proper movement | |||||
| Rec. Share: | (43.08 ± 0.24) mas / a | ||||
| Dec. portion: | (−790.61 ± 0.16) 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 | (1793 ± 80) K. | ||||
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Other names and catalog entries |
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2MASS J11553952-3727350 is an ultra-cool dwarf in the constellation Centaur . It was published in 2002 by John E. Gizis et al. discovered. Its position shifts by 0.82 arc seconds annually due to its own motion .
Web links
- Entry at DwarfArchives.org (English)
- Gizis, John E. Brown Dwarfs and the TW Hydrae Association . In: The Astrophysical Journal, 2002, Volume 575, Number 1, pp. 484-492. bibcode : 2002ApJ ... 575..484G (English)
Individual evidence
- ↑ a b c d e f g 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 .