KELT-6b is an exoplanet orbiting the F-type subgiant KELT-6 approximately 791 light years away in the northern constellation Coma Berenices. It was discovered in 2013 using the transit method, and was announced in 2014.
Discovery[1] | |
---|---|
Discovered by | Collins et al. |
Discovery site | KELTNorth |
Discovery date | 2014 |
Transit | |
Orbital characteristics | |
0.0804±0.0014 AU[2] | |
Eccentricity | 0.22±0.11[3] |
7.8457±0.0002 d[3] | |
Inclination | 88.81°±0.85°[3] |
2,456,269.2+1.7 −2.5 JD[1] | |
308°+30° −272°[4] | |
Semi-amplitude | 42.8±4.3 km/s[3] |
Star | KELT-6 |
Physical characteristics | |
Mean radius | 1.30±0.09 RJ[3] |
Mass | 0.442±0.019 MJ[4] |
Mean density | 0.333+0.120 −0.079 g/cm3[2](0.012+0.004 −0.002 lb/cu in) |
Temperature | 1313+59 −38 K[1] |
In 2014, the planet's parameters were observed. The paper states that KELT-6 has just entered the subgiant phase, and is no longer on the main sequence. In 2015, an additional planet, c, was discovered using the radial velocity method.[4]
KELT-6b is a hot Saturn with 44.2% Jupiter's mass, but has been bloated to 1.3 times Jupiter's radius. It's density is half of Saturn's, and it has an equilibrium temperature of 1,313 K, but a hotter dayside temperature of 1,531 K.[5]