This page summarises the information held within TEPCat for the transiting planetary system K2-290c. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2019MNRAS.484.3522H | |
| Date of discovery paper | 2019 / 1 / 15 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 15 39 25.87 | h m s |
| Declination | −20 11 55.7 | d m s |
| Right ascension (decimal) | 234.85779 | degrees |
| Declination (decimal) | -20.19881 | degrees |
| V-band apparent magnitude | 11.11 | mag |
| K-band apparent magnitude | 9.42 | mag |
| Transit duration | 0.339 ( 8.14 ) | day hour |
| Transit depth | 0.5 | % |
| Time of mid-transit | 2458019.1723 ± 0.0003 | HJD or BJD |
| Orbital period | 48.3674 ± 0.0003 | days |
| Reference for orbital ephemeris | 2021PNAS..11820174H |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6302 ± 120 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.06 ± 0.10 | dex |
| Stellar mass | 1.194 +0.067 −0.077 | Msun |
| Stellar radius | 1.511 +0.075 −0.072 | Rsun |
| Stellar logarithmic surface gravity | 4.23 ± 0.10 | c.g.s. |
| Stellar mean density | 0.344 +0.052 −0.045 ( 0.485 +0.073 −0.063 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.241 −0.0 | |
| Orbital semimajor axis | 0.305 ± 0.017 | AU |
| Planetary mass | 0.774 ± 0.047 ( 246 ± 14 ) | Mjup Mearth |
| Planetary radius | 1.006 ± 0.050 ( 11.28 ± 0.56 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 0.76 ± 0.12 ( 1.01 ± 0.16 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 676 ± 16 | K |
| Reference of detailed study | 2021PNAS..11820174H |
| Reference | λ (degrees) |
|---|---|
| Hjorth et al.(2021) | 153 ± 8 |
Page generated on 2024/09/04 John Southworth (Keele University, UK)