DEN 1048−3956

DEN 1048−3956 is a brown dwarf about 13.1 light years from Earth in the southern constellation of Antlia, among the closest interstellar objects to Earth. This substellar object is very dim with an apparent magnitude of about 17,[2] and will require a telescope with a camera to be seen. It was discovered in 2000 by Xavier Delfosse (Institute of Astrophysics of the Canary Islands, now Observatoire de Grenoble) and Thierry Forveille (Canada–France–Hawaii Telescope Corporation), with the assistance of nine other astronomers.

DEN 1048−3956

Observation data Epoch J2000      Equinox J2000
Constellation	Antlia
Right ascension	10^h 48^m 14.640^s[1]
Declination	−39° 56′ 06.24″[1]
Apparent magnitude (V)	17.4[2]
Characteristics
Spectral type	M9 V or L0
Apparent magnitude (J)	9.5[1]
Astrometry
Radial velocity (Rv)	−10.1 ± 0.5[1] km/s
Proper motion (μ)	RA: −1198 ± 10[1] mas/yr Dec.: −970 ± 8[1] mas/yr
Parallax (π)	248.08 ± 0.61[3] mas
Distance	13.15 ± 0.03 ly (4.031 ± 0.010 pc)
Absolute magnitude (MV)	19.37[2]
Details
Mass	0.07[2] M☉
Other designations
2MASS J10481463−3956062, 2MASSI J1048147−395606, 2MUCD 20385, DENIS-P J104814.9−395604, DENIS-P J104814.7−395606, DEN 1048−3956, USNO-B1.0 0500-00227632
Database references
SIMBAD	data
Data sources:
Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.)

In 2005 a powerful flare from this object was detected by radio astronomy.[4]

See also

• List of nearest stars

References

1. "2MASSI J1048147-395606 -- Brown Dwarf (M<0.08solMass)". Centre de Données astronomiques de Strasbourg. Retrieved 2009-12-15.
2. "The One Hundred Nearest Star Systems". RECONS. Georgia State University. January 1, 2009. Retrieved 2011-12-03.
3. Lurie, John C.; Henry, Todd J.; Jao, Wei-Chun; Quinn, Samuel N.; Winters, Jennifer G.; Ianna, Philip A.; Koerner, David W.; Riedel, Adric R.; Subasavage, John P. (2014). "The Solar Neighborhood. XXXIV. a Search for Planets Orbiting Nearby M Dwarfs Using Astrometry". The Astronomical Journal. 148 (5): 91. arXiv:1407.4820. Bibcode:2014AJ....148...91L. doi:10.1088/0004-6256/148/5/91. S2CID 118492541.
4. Adam J. Burgasser & Mary E. Putman (June 10, 2005). "Quiescent Radio Emission from Southern Late-Type M Dwarfs and a Spectacular Radio Flare from the M8 Dwarf DENIS 1048−3956". The Astrophysical Journal. 626 (1): 486–497. arXiv:astro-ph/0502365. Bibcode:2005ApJ...626..486B. doi:10.1086/429788. S2CID 13286883.

• Deacon, N. R.; Hambly, N. C. (2001). "The trigonometric parallax of DENIS-P J104814.7-395606.1". Astronomy and Astrophysics. 380: 148–150. Bibcode:2001A&A...380..148D. doi:10.1051/0004-6361:20011290.
• Jao, Wei-Chun; Henry, Todd J.; Subasavage, John P.; Brown, Misty A.; Ianna, Philip A.; Bartlett, Jennifer L.; Costa, Edgardo; Méndez, René A. (2005). "The Solar Neighborhood. XIII. Parallax Results from the CTIOPI 0.9 Meter Program: Stars with mu >= 1.0" yr-1 (MOTION Sample)". The Astronomical Journal. 129 (4): 1954–1967. arXiv:astro-ph/0502167. Bibcode:2005AJ....129.1954J. doi:10.1086/428489. S2CID 16164903.
• Costa, Edgardo; Méndez, René A.; Jao, W.-C.; Henry, Todd J.; Subasavage, John P.; Brown, Misty A.; Ianna, Philip A.; Bartlett, Jennifer (2005). "The Solar Neighborhood. XIV. Parallaxes from the Cerro Tololo Inter-American Observatory Parallax Investigation-First Results from the 1.5 m Telescope Program". The Astronomical Journal. 130 (1): 337–349. Bibcode:2005AJ....130..337C. doi:10.1086/430473.

External links

• Image Den 1048-3956
• The nearest stars: DEN 1048-3956
• M dwarfs, L dwarfs and T dwarfs
• Parallax Investigation Results
• Infrared Photometry from 2Mass and Denis
• Image 2Mass J10481463-3956062