Astronomy:Lupus-TR-3
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Lupus |
| Right ascension | 15h 30m 18.66718s[1] |
| Declination | −42° 58′ 41.6640″[1] |
| Apparent magnitude (V) | 17.4[2] |
| Characteristics | |
| Spectral type | K1 V[3] |
| Apparent magnitude (B) | 18.68±0.43[4] |
| Apparent magnitude (J) | 15.80±0.09[5] |
| Apparent magnitude (H) | 15.39±0.13[5] |
| Apparent magnitude (K) | 15.48±0.25[5] |
| B−V color index | +1.28[2][4] |
| Astrometry | |
| Proper motion (μ) | RA: −3.798[1] mas/yr Dec.: −7.197[1] mas/yr |
| Distance | ~2,000[2] pc |
| Details[2] | |
| Mass | 0.87±0.04 M☉ |
| Radius | 0.82±0.05 R☉ |
| Temperature | 5,000±150 K |
| Other designations | |
GSC2 S233113121866, USNO-B1.0 0470-00456338, DENIS-P J153018.6-425841, 2MASS J15301866-4258415[6] | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
| Extrasolar Planets Encyclopaedia | data |
Lupus-TR-3 is a star located in the southern constellation Lupus. It has an apparent magnitude of 17.4,[2] making it visible only in power telescopes. Its distance is not well known, but it is estimated to be roughly 2,000 parsecs away from the Solar System.[2]
Physical characteristics
Lupus-TR-3 has a stellar classification of K1 V,[3] indicating that it is an ordinary K-type main-sequence star. It has 87% the mass of the Sun and 82% the radius of the Sun. It radiates at an effective temperature of 5,000 K.[2]
Planetary system
Lupus-TR-3 b is an exoplanet discovered in 2007 by personnel from the Center for Astrophysics | Harvard & Smithsonian 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±0.00004 | 0.00 | 88.3+1.3−0.8° | 0.89±0.07 RJ |
See also
- List of extrasolar planets
- Harvard-Smithsonian Center for Astrophysics
References
- ↑ 1.0 1.1 1.2 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 Weldrake, David T. F.; Bayliss, Daniel D. R.; Sackett, Penny D.; Tingley, Brandon W.; Gillon, Michaël; Setiawan, Johny (30 January 2008). "Lupus-TR-3b: A Low-Mass Transiting Hot Jupiter in the Galactic Plane?". The Astrophysical Journal 675 (1): L37–L40. doi:10.1086/529519. ISSN 0004-637X. Bibcode: 2008ApJ...675L..37W.
- ↑ 3.0 3.1 Ehrenreich, D.; Désert, J.-M. (20 April 2011). "Mass-loss rates for transiting exoplanets". Astronomy & Astrophysics 529: A136. doi:10.1051/0004-6361/201016356. ISSN 0004-6361. Bibcode: 2011A&A...529A.136E.
- ↑ 4.0 4.1 "VizieR Online Data Catalog: The Guide Star Catalog, Version 2.2 (GSC2.2) (STScI, 2001)". VizieR Online Data Catalog (Space Telescope Science Institute). 1 October 2001. Bibcode: 2001yCat.1271....0S.
- ↑ 5.0 5.1 5.2 Cutri, R. M.; Skrutskie, M. F.; van Dyk, S.; Beichman, C. A.; Carpenter, J. M.; Chester, T.; Cambresy, L.; Evans, T. et al. (June 2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". VizieR Online Data Catalog: II/246. Bibcode: 2003yCat.2246....0C.
- ↑ "Lupus-TR 3". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Lupus-TR+3.
External links
- "Lupus-TR-3". Exoplanets. http://media4.obspm.fr/exoplanets/base/etoile.php?nom=Lupus-TR-3. Retrieved 2009-05-20.
- Bayliss et al. (2009). "The Lupus Transit Survey for Hot Jupiters: Results and Lessons". The Astronomical Journal 137 (5): 4368–4376. doi:10.1088/0004-6256/137/5/4368. Bibcode: 2009AJ....137.4368B. http://www.iop.org/EJ/abstract/1538-3881/137/5/4368.
Coordinates: 
15h 30m 18.67s, −42° 58′ 41.5″
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