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]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| 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 |
| Distance | 8950 ly (2744 pc) |
| Details | |
| Mass | 0.87 ±0.004 M☉ |
| Radius | 0.82 ±0.05 R☉ |
| Temperature | 5000 ±150 K |
| Other designations | |
GSC2 S233113121866, USNO-B1.0 0470-00456338, DENIS-P J153018.6-425841, 2MASS J15301866-4258415[1] | |
| Database references | |
| SIMBAD | data |
| 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]
| 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 | — | — |
See also
- List of extrasolar planets
- Harvard-Smithsonian Center for Astrophysics
References
- "SIMBAD query result: Lupus-TR 3 -- Star". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2009-05-20.
- 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. S2CID 13285272.
External links
- "Lupus-TR-3". Exoplanets. Archived from the original on 2016-03-03. Retrieved 2009-05-20.
- Bayliss; Weldrake, David T. F.; Sackett, Penny D.; Tingley, Brandon W.; Lewis, Karen M.; et al. (2009). "The Lupus Transit Survey for Hot Jupiters: Results and Lessons". The Astronomical Journal. 137 (5): 4368–4376. arXiv:0903.5121. Bibcode:2009AJ....137.4368B. doi:10.1088/0004-6256/137/5/4368. S2CID 16189693.
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