Lupus-TR-3b

Lupus-TR-3b is an extrasolar planet orbiting the star Lupus-TR-3 (a K-type main sequence star approximately 8,950 light-years away in the constellation Lupus). The planet was discovered in 2007 by personnel from the Harvard-Smithsonian Center for Astrophysics observing at the Siding Spring Observatory in Australia, by the transit method.

Lupus-TR-3b
Size comparison of Lupus-TR-3b with Jupiter.
Discovery
Discovered byWeldrake et al.
Discovery siteSiding Spring Observatory
Discovery dateNovember 12, 2007
Transit
Orbital characteristics
0.0464 ± 0.0007 AU (6,940,000 ± 100,000 km)
Eccentricity0
3.91405 ± 4e-5 d
Inclination88.3+1.3−0.8
2453887.0818
Semi-amplitude114 ± 25
StarLupus-TR-3
Physical characteristics
Mean radius
0.89 ± 0.07 RJ
Mass0.81 ± 0.18 MJ
Mean density
1,400 ± 400 kg/m3 (2,360 ± 670 lb/cu yd)

    The planet 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.[1]

    See also

    • Harvard-Smithsonian Center for Astrophysics

    References

    1. Weldrake; Bayliss, Daniel D. R.; Sackett, Penny D.; Tingley, Brandon W.; Gillon, Michaël; Setiawan, Johny (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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