Lupus-TR-3

Last updated
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]
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

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]

Contents

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 ± 0.00073.91405±0.000040.0088.3+1.3
−0.8 ° 		0.89±0.07  RJ

See also

References

  1. 1 2 3 4 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. 1 2 3 4 5 6 7 8 9 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. 1 2 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. 1 2 "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. 1 2 3 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.
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