2MASS J04455387-3048204
L-dwarf 2MASS J04455387-3048204 |
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AladinLite | |||||
Observation dates equinox : J2000.0 , epoch : J2000.0 |
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Constellation | Digger | ||||
Right ascension | 04 h 45 m 53.9 s | ||||
declination | -30 ° 48 ′ 20.6 ″ | ||||
Typing | |||||
rel. Brightness (G-band) |
(18.26 ± 0.01) mag | ||||
rel. Brightness (J-band) |
(13.39 ± 0.03) mag | ||||
Spectral class | L2 | ||||
Astrometry | |||||
parallax | (61.97 ± 0.18) mas | ||||
distance | (52.61 ± 0.16) ly (16.14 ± 0.05) pc |
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Proper movement | |||||
Rec. Share: | (161.48 ± 0.28) mas / a | ||||
Dec. portion: | (−419.68 ± 0.39) mas / a | ||||
Physical Properties | |||||
Dimensions | (0.06 ± 0.01) M ☉ | ||||
radius | (0.10 ± 0.01) R ☉ | ||||
Luminosity |
(1.02 ± 0.12) × 10 −4 L ☉ |
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Effective temperature | (1809 ± 90) K. | ||||
Other names and catalog entries |
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2MASS J04455387-3048204 is an ultra-cool dwarf in the constellation Gravestones . It was published in 2003 by Kelle L. Cruz et al. discovered. It belongs to the spectral class L2.
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 2MASS J04455387-3048204. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed on October 11, 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 .