KELT-10

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Coordinates: Sky map 18h 58m 11.61s, −47° 00′ 11.66″

KELT-10
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Telescopium
Right ascension 18h 58m 11.61s[1]
Declination −47° 00′ 11.66″[1]
Apparent magnitude (V) +10.62[2]
Characteristics
Spectral type G0V[3]
Variable type PT
Astrometry
Radial velocity (Rv)+31.61[1] km/s
Proper motion (μ) RA: +1.44[1] mas/yr
Dec.: -15.58[1] mas/yr
Parallax (π)5.28 ± 0.0603[1] mas
Distance618 ± 7 ly
(189 ± 2 pc)
Details[3]
Mass1.07+0.12
−0.15[4] M☉
Radius1.19+0.11
−0.08[1] R☉
Luminosity1.40±0.02[1] L☉
Surface gravity (log g)4.32+0.02
−0.03 cgs
Temperature5,883+160
−107[4] K
Metallicity [Fe/H]0.09+0.11
−0.10 dex
Age4.5±0.7 Gyr
Other designations
CD-47 12635, KELT-10, 269217040, Gaia DR2 6710517793025165696
Database references
SIMBADdata

KELT-10, also known by its Cordoba Durchmusterung (CD) catalogue name as CD-47 12635, is a star in the constellation Telescopium. It was discovered by Kuhn et. al (KELT) along with its planet.

Physical Properties[]

KELT-10 is a yellow dwarf very similar to the Sun, but 7% more massive and 19% larger. It is also hotter, with a temperature of 5883 K, while the Sun has a temperature of 5778 K. The (V) in its spectral class, shows that it is in the main sequence. The star is also slightly younger than the Sun, with an age of 4.5 billion years and more luminous, having a luminosity 40% greater. KELT-10 hosts a planet and has 23% more heavy metals than the Sun.

Planetary System[]

In 2015, a "hot Jupiter" orbiting the star was discovered by the KELT-South telescope. KELT-10b orbits at a distance 10 time closer than Mercury orbits the Sun, and is bloated due to its orbit.

The KELT-10 planetary system[3]
Companion
(in order from star) 		Mass Semimajor axis
(AU) 		Orbital period
(days) 		Eccentricity Inclination Radius
b 0.68±0.01 MJ 0.0525 4.17 — 88.61° 1.4 RJ

References[]

  1. ^ a b c d e f g 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.
  2. ^ Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000-03-01). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. ISSN 0004-6361.
  3. ^ a b c Kuhn, Rudolf B.; Rodriguez, Joseph E.; Collins, Karen A.; Lund, Michael B.; Siverd, Robert J.; Colón, Knicole D.; Pepper, Joshua; Stassun, Keivan G.; Cargile, Phillip A.; James, David J.; Penev, Kaloyan (2016-07-11). "KELT-10b: the first transiting exoplanet from the KELT-South survey – a hot sub-Jupiter transiting a V = 10.7 early G-star". Monthly Notices of the Royal Astronomical Society. 459 (4): 4281–4298. doi:10.1093/mnras/stw880. ISSN 0035-8711.
  4. ^ a b Stassun, Keivan G.; Oelkers, Ryan J.; Paegert, Martin; Torres, Guillermo; Pepper, Joshua; De Lee, Nathan; Collins, Kevin; Latham, David W.; Muirhead, Philip S.; Chittidi, Jay; Rojas-Ayala, Bárbara (2019-10-01). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. hdl:1721.1/124721. ISSN 0004-6256. S2CID 166227927.
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