OGLE-TR-132 is a distant magnitude 15.72 star in the star fields of the constellation Carina. Because of its great distance, about 4,900 light-years, and location in the crowded field it was not notable in any way. Because its apparent brightness changes when one of its planets transits, the star has been given the variable star designation V742 Carinae. The spectral type of the star is type F. A yellow-white, very metal-rich subgiant,[3] it is slightly hotter and more luminous than the Sun.
 Light curve showing the March 11, 2009 planet transit across OGLE-TR-132 Credit: Adapted from Adams et al. (2011)[1] | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Carina[2] |
| Right ascension | 10h 50m 34.59s[3] |
| Declination | −61° 57′ 26.1″[3] |
| Apparent magnitude (V) | 15.72[2] |
| Characteristics | |
| Evolutionary stage | subgiant[3] |
| Spectral type | F[4] |
| Astrometry | |
| Proper motion (μ) | RA: −5.463[3] mas/yr Dec.: +3.058[3] mas/yr |
| Parallax (π) | 0.4290±0.0450 mas[3] |
| Distance | approx. 7,600 ly (approx. 2,300 pc) |
| Details | |
| Mass | 1.19[5] M☉ |
| Radius | 1.23[5] R☉ |
| Luminosity | 2.04[5] L☉ |
| Surface gravity (log g) | 4.33[5] cgs |
| Temperature | 6,210[5] K |
| Age | 7.4[3] Gyr |
| Other designations | |
| V742 Carinae, TIC 465144510[6] | |
| Database references | |
| SIMBAD | data |
Planetary system
editIn 2003 the Optical Gravitational Lensing Experiment (OGLE) detected periodic dimming in the star's light curve indicating a transiting, planetary-sized object.[2] Since low-mass red dwarfs and brown dwarfs may mimic a planet radial velocity measurements were necessary to calculate the mass of the body. In 2004 the object was proved to be a new transiting extrasolar planet, OGLE-TR-132b.[4]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination (°) |
Radius |
|---|---|---|---|---|---|---|
| b | 1.14 ± 0.12 MJ | 0.0306 ± 0.0008 | 1.689868 ± 0.000003 | 0 | — | 1.15+0.80 −0.13[4] RJ |
See also
editReferences
edit- ↑ Adams, E. R.; López-Morales, M.; Elliot, J. L.; Seager, S.; Osip, D. J. (February 2011). "Transit Timing Variation Analysis of OGLE-TR-132b with Seven New Transits". The Astrophysical Journal. 728 (2): 1–9. arXiv:1012.3365. doi:10.1088/0004-637X/728/2/125. Retrieved 9 April 2025.
- 1 2 3 Udalski, A.; et al. (2003). "The Optical Gravitational Lensing Experiment. Additional Planetary and Low-Luminosity Object Transits from the OGLE 2001 and 2002 Observational Campaigns". Acta Astronomica. 53: 133. arXiv:astro-ph/0306444. Bibcode:2003AcA....53..133U.
- 1 2 3 4 5 6 7 8 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.
- 1 2 3 Bouchy, F.; et al. (2004). "Two new "very hot Jupiters" among the OGLE transiting candidates". Astronomy and Astrophysics. 421: L13–L16. arXiv:astro-ph/0404264. Bibcode:2004A&A...421L..13B. doi:10.1051/0004-6361:20040170. S2CID 16245079.
- 1 2 3 4 5 Stassun, Keivan G.; et al. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467.
- ↑ "OGLE-TR 132". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2026-06-04.
External links
edit- "OGLE-TR-132". Exoplanets. Archived from the original on 2012-04-01. Retrieved 2009-04-28.
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