Lupus-TR-3

Lupus-TR-3
Observation data
Epoch J2000      Equinox J2000
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 mas/yr[1]
Dec.: −7.197 mas/yr[1]
Distance~2,000[2] pc
Details[2]
Mass0.87±0.04 M☉
Radius0.82±0.05 R☉
Temperature5,000±150 K
Other designations
GSC2 S233113121866, USNO-B1.0 0470-00456338, DENIS-P J153018.6-425841, 2MASS J15301866-4258415[6]
Database references
SIMBADdata
Exoplanet Archivedata

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]

The Lupus-TR-3 planetary system[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

References

  1. ^ a b c Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  2. ^ a b c d e f g h i 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. arXiv:0711.1746. Bibcode:2008ApJ...675L..37W. doi:10.1086/529519. eISSN 1538-4357. ISSN 0004-637X. S2CID 13285272.
  3. ^ a b Ehrenreich, D.; Désert, J.-M. (20 April 2011). "Mass-loss rates for transiting exoplanets". Astronomy & Astrophysics. 529: A136. arXiv:1103.0011. Bibcode:2011A&A...529A.136E. doi:10.1051/0004-6361/201016356. eISSN 1432-0746. ISSN 0004-6361. S2CID 119302960.
  4. ^ a b "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. ^ a b c Cutri, R. M.; Skrutskie, M. F.; van Dyk, S.; Beichman, C. A.; Carpenter, J. M.; Chester, T.; Cambresy, L.; Evans, T.; Fowler, J.; Gizis, J.; Howard, E.; Huchra, J.; Jarrett, T.; Kopan, E. L.; Kirkpatrick, J. D.; Light, R. M.; Marsh, K. A.; McCallon, H.; Schneider, S.; Stiening, R.; Sykes, M.; Weinberg, M.; Wheaton, W. A.; Wheelock, S.; Zacarias, N. (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.
  6. ^ "Lupus-TR 3". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved May 20, 2009.