Planet K2-31 b
| Name | K2-31 b | ||
| Planet Status | Confirmed | ||
| Discovered in | 2016 | ||
| Mass | 1.774 ( -0.079 +0.079 ) MJ |  |
|
| Mass*sin(i) | — | ||
| Semi-Major Axis | 0.022 (± 0.0018) AU | ||
| Orbital Period | 1.25785 (± 2e-06) day | |
|
| Eccentricity | 0.0 | |
|
| ω | — | ||
| Tperi | — | ||
| Radius | 1.06 ( -0.35 +0.35 ) RJ | |
|
| Inclination | 79.9 (± 0.8) deg | |
|
| Update | 2021-02-05 | ||
| Detection Method | Primary Transit | ||
| Mass Detection Method | Radial Velocity | ||
| Radius Detection Method | Primary Transit | ||
| Primary transit | 2457191.70889 (± 0.00024) JD | |
|
| Secondary transit | — | ||
| λ | — | ||
| Impact Parameter b | 0.975 ( -0.075 +0.075 ) | |
|
| Time Vr=0 | — | ||
| Velocity Semiamplitude K | 350.9 ( -1.0 +1.0 ) m/s | |
|
| Calculated temperature | — | ||
| Measured temperature | — | ||
| Hottest point longitude | — | ||
| Geometric albedo | — | ||
| Surface gravity log(g/gH) | — | ||
| Alternate Names | EPIC 204129699 b, 2MASS J16214578-2332520 b, EPIC 204129699.01, K2-31 A b, TYC 6794-00471-1 b, WISE J162145.75-233253.2 b |
Star
K2-31| Name | K2-31 | ||
| Distance | — | ||
| Spectral type | G7V | ||
| Apparent magnitude V | 10.8 | ||
| Mass | 0.91 (± 0.06) MSun | |
|
| Age | — | ||
| Effective temperature | 5280.0 (± 70.0) K | |
|
| Radius | 0.78 (± 0.07) RSun | |
|
| Metallicity [Fe/H] | 0.08 (± 0.05) | |
|
| Detected Disc | — | ||
| Magnetic Field | — | ||
| RA2000 | 16:21:45.8 | ||
| Dec2000 | -23:32:52 | ||
| Alternate Names | EPIC 204129699, TYC 6794-471-1, 2MASS 16214578-2332520 | ||
| Planetary system | 1 planet |
Related publications
Spatially Resolved Modeling of Optical Albedos for a Sample of Six Hot Jupiters
2022
ADAMS D., KATARIA T., BATALHA N., GAO P. & KNUTSON H.
ApJ, 926, 157
paper arxiv
Discovery of Six Optical Phase Curves with K2
2018
NIRAULA P., REDFIELD S., de WIT J., DAI F., MIRELES S. et al.
Astron. J., submitted
arxiv arxiv
K2-31B, A GRAZING TRANSITING HOT JUPITER ON A 1.26-DAY ORBIT AROUND A BRIGHT G7V STAR
2016
GRZIWA, S., GANDOLFI, D., CSIZMADIA, S. & 7 additional authors
Astron. J., 152, 132
arxiv
paper
ADS
