KELT-10
{{Short description|Star in the constellation Telescopium}}
{{Sky|18|58|11.6095|-|47|00|11.6643}}
{{Starbox begin
| name = KELT-10
}}
{{Starbox observe
| epoch = J2000.0
| constell = Telescopium
}}
{{Starbox character
| variable = PT
}}
{{Starbox astrometry
| prop_mo_ra = +1.464
| prop_mo_dec = −15.600
| parallax = 5.2834
| p_error = 0.0174
}}
{{Starbox detail
| mass = {{val|1.07|0.12|0.15}}
| radius = 1.21{{±|0.05|0.03}}
| luminosity = {{val|1.40|0.02}}
| temperature = 5,948{{±|74}}
| gravity = {{val|4.32|0.02|0.03}}
| metal_fe = +0.1{{±|0.1}}
| rotational_velocity =
| age_gyr = {{val|4.5|0.7}}
}}
{{Starbox catalog
| names = {{odlist | name=CD−47°12635, KELT-10, TIC 269217040, Gaia DR2 6710517793025165696}}
}}
{{Starbox reference
| Simbad = KELT-10
}}
{{Starbox end}}
KELT-10, also known as CD−47°12635, is a sun-like star in the southern constellation Telescopium. It has an apparent magnitude of 10.62, making it readily visible in telescopes, but not to the naked eye. Parallax measurements from the Gaia spacecraft place the star at a distance of 617 light years; it is currently receding with a radial velocity of {{val|31.6|ul=km/s}}.
KELT-10 has a stellar classification of G0 V, indicating that it is a yellow dwarf like the Sun. However, the object is 7% more massive and 21% larger. It is also slightly hotter, with an effective temperature of {{val|5948|ul=K|fmt=commas}} compared to the Sun's of {{val|5778|ul=K|fmt=commas}}. The star has a similar age, with an age of 4.5 billion years and more luminous, having a luminosity 40% greater. KELT-10's iron abundance is 123% that of the Sun, consistent with a planetary host. However, this amount is poorly constrained.
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.
{{Orbitbox planet begin
| name = KELT-10
}}
{{Orbitbox planet
| exoplanet = b
| mass = 0.68{{±|0.04}}
| semimajor = 0.052{{±|0.001}}
| inclination = 88.61{{±|0.86|0.74}}
| radius = 1.4{{±|0.1}}
| eccentricity = 0 (assumed)
| period = 4.1662739{{±|0.0000063}}
}}
{{Orbitbox end}}
References
{{reflist||refs=
{{Cite DR2|6710517793025165696}}
{{Cite Gaia DR3|6710517793025165696}}
{{Cite constellation|KELT-10}}
}}
{{Stars of Telescopium}}
{{DEFAULTSORT:KELT-10}}
Category:G-type main-sequence stars