Lupus-TR-3

Lupus-TR-3 is a dim magnitude 17 K-type main sequence star approximately 8,950 light-years distant in the constellation of Lupus.[1]

Lupus-TR-3
Observation data
Epoch 2000      Equinox 2000
Constellation Lupus
Right ascension  15h 30m 18.67s[1]
Declination −42° 58′ 41.5″[1]
Apparent magnitude (V) 17.4[1]
Characteristics
Spectral type K1V[1]
Apparent magnitude (B) 18.68 [0.43][1]
Apparent magnitude (V) ~17.40[1]
Apparent magnitude (J) 15.80 ±0.09[1]
Apparent magnitude (H) 15.39 ±0.13[1]
Apparent magnitude (K) 15.48 ±0.25[1]
Astrometry
Proper motion (μ) RA: -8 ± 3[1] mas/yr
Dec.: -24 ± 5[1] mas/yr
Distance8950 ly
(2744 pc)
Details
Mass0.87 ±0.004 M☉
Radius0.82 ±0.05 R☉
Temperature5000 ±150 K
Other designations
GSC2 S233113121866, USNO-B1.0 0470-00456338, DENIS-P J153018.6-425841, 2MASS J15301866-4258415[1]
Database references
SIMBADdata
Extrasolar Planets
Encyclopaedia		data

Planetary system

Lupus-TR-3 b is an exoplanet discovered in 2007 by personnel from the Harvard-Smithsonian Center for Astrophysics using the transit method. It has four-fifths the mass of Jupiter, nine-tenths the radius, and has density of 1.4 g/cm³. This planet is a typical "hot Jupiter" as it orbits at 0.0464 AU distance from the star, taking 3.9 days to orbit. It is currently the faintest ground-based detection of a transiting planet.[2]

The Lupus-TR-3 planetary system
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b 0.81 ± 0.18 MJ 0.0464 ± 0.0007 3.91405 ± 4e-5 0 — —
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See also
  • List of extrasolar planets
  • Harvard-Smithsonian Center for Astrophysics

References
  1. "SIMBAD query result: Lupus-TR 3 -- Star". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2009-05-20.
  2. Weldrake; Bayliss, Daniel D. R.; Sackett, Penny D.; Tingley, Brandon W.; Gillon, Michaël; Setiawan, Johny; et al. (2008). "Lupus-TR-3b: A Low-Mass Transiting Hot Jupiter in the Galactic Plane?". The Astrophysical Journal Letters. 675 (1): L37–L40. arXiv:0711.1746. Bibcode:2008ApJ...675L..37W. doi:10.1086/529519.


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