CoRoT-16 is a solitary star located in the equatorial constellation Scutum. With an apparent magnitude of 16, it requires a powerful telescope to be seen, and is located 2,400 light years away based on parallax.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Scutum |
| Right ascension | 18h 34m 05.919s[1] |
| Declination | –06° 00′ 09.24″[1] |
| Apparent magnitude (V) | 16.03±0.43[2] |
| Characteristics | |
| Spectral type | G5 V[3] |
| B−V color index | +1.82[2] |
| Astrometry | |
| Proper motion (μ) | RA: +0.937[1] mas/yr Dec.: –8.043[1] mas/yr |
| Parallax (π) | 1.3406 ± 0.0624 mas[1] |
| Distance | 2,400 ± 100 ly (750 ± 30 pc) |
| Details[3] | |
| Mass | 1.098+0.082 −0.078 M☉ |
| Radius | 1.19+0.14 −0.13 R☉ |
| Luminosity | 0.77[4] L☉ |
| Surface gravity (log g) | 4.36±0.10 cgs |
| Temperature | 5,650±100 K |
| Metallicity [Fe/H] | 0.19±0.06 dex |
| Rotational velocity (v sin i) | 0.50±0.50[5] km/s |
| Age | 6.7±2.8[5] Gyr |
| Other designations | |
Gaia DR2 4256135160951556480 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
Properties
editThis is an ordinary G-type main sequence star with a similar mass to the Sun, but is 19% larger than the latter. It radiates at 77% the Sun's luminosity from its photosphere at an effective temperature of 5,650 K, which gives it the yellow-hue of a G-type star. CoRoT-16 has a rotation rate of 1/2 km/s, which correlates with an age of 6.7 billion years. As expected with planetary hosts, CoRoT-16 has a high metallicity.
Planetary system
editIn 2011, the CoRoT mission discovered an unusually eccentric "hot Jupiter".
| Companion (in order from star) |
Mass[5] | Semimajor axis[3] (AU) |
Orbital period[3] (days) |
Eccentricity[5] | Inclination[3] | Radius[5] |
|---|---|---|---|---|---|---|
| b | 0.529+0.098 −0.096 MJ |
0.0618 ± 0.0015 | 5.35227±0.00020 | 0.37+0.11 −0.12 |
85.01+0.94 −1.20° |
1.17+0.14 −0.16 RJ |
References
edit- ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- ^ a b Lasker, Barry M.; et al. (August 2008). "The Second-Generation Guide Star Catalog: Description and Properties". The Astronomical Journal. 136 (2): 735–766. arXiv:0807.2522. Bibcode:2008AJ....136..735L. doi:10.1088/0004-6256/136/2/735. ISSN 0004-6256. S2CID 17641056.
- ^ a b c d e Ollivier, M.; et al. (May 2012). "Transiting exoplanets from the CoRoT space mission. XXII. CoRoT-16b: a hot Jupiter with a hint of eccentricity around a faint solar-like star". Astronomy and Astrophysics. 541: A149. Bibcode:2012A&A...541A.149O. doi:10.1051/0004-6361/201117460. ISSN 0004-6361.
- ^ Stassun, Keivan G.; et al. (1 October 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. ISSN 0004-6256. S2CID 166227927.
- ^ a b c d e Bonomo, A. S.; et al. (June 2017). "The GAPS Programme with HARPS-N at TNG . XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets". Astronomy and Astrophysics. 602: A107. arXiv:1704.00373. Bibcode:2017A&A...602A.107B. doi:10.1051/0004-6361/201629882. ISSN 0004-6361. S2CID 118923163.