2MASS J15551573-0956055
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L-dwarf 2MASS J15551573-0956055 |
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| AladinLite | |||
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | Libra | ||
| Right ascension | 15 h 55 m 15.78 s | ||
| declination | -09 ° 56 ′ 6 ″ | ||
| Typing | |||
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rel. Brightness (G-band) |
(17.35 ± 0.01) mag | ||
| rel. Brightness (J-band) |
(12.56 ± 0.02) mag | ||
| Spectral class | L1.6 V | ||
| Astrometry | |||
| Radial velocity | (15 ± 2) km / s | ||
| parallax | (73.65 ± 0.19) mas | ||
| distance | (44.26 ± 0.12) ly (13.58 ± 0.03) pc |
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| Proper movement | |||
| Rec. Share: | (931.63 ± 0.38) mas / a | ||
| Dec. portion: | (−785.14 ± 0.24) mas / a | ||
| Physical Properties | |||
| Dimensions | (0.07 ± 0.01) M ☉ | ||
| radius | (0.10) R ☉ | ||
| Luminosity |
(1.95 ± 0.05) × 10 −4 L ☉ |
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| Effective temperature | (2102 ± 64) K. | ||
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Other names and catalog entries |
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2MASS J15551573-0956055 is an ultra-cool dwarf in the constellation Libra . It was published in 2002 by John E. Gizis et al. discovered.
It belongs to the spectral class L1.6 V. Its proper motion is stated differently in the literature with values between 1.22 and 2.55 arc seconds per year.
Web links
- Entry at DwarfArchives.org (English)
- Discovery paper: bibcode : 2002ApJ ... 575..484G (English)
Individual evidence
- ↑ a b c d e f g 2MASS J15551573-0956055. 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 .
- ↑ JK Faherty et al .: The Brown Dwarf Kinematics Project I. Proper Motions and Tangential Velocities for a Large Sample of Late-Type M, L, and T Dwarfs . In: Astron. Journ. tape 137 , 2009, p. 1-18 , doi : 10.1088 / 0004-6256 / 137/1/1 .
- ↑ RF Jameson et al .: Proper motions of field L and T dwarfs . In: Mon. Not. R. Astron. Soc . tape 384 , 2008, p. 1399-1413 , doi : 10.1111 / j.1365-2966.2007.12637.x .