This page summarises the information held within TEPCat for the transiting planetary system EPIC 218916923. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:1702.00691 | |
| Date of discovery paper | 2017 / 2 / 3 | y / m / d |
| Right ascension | 19 16 15.97 | h m s |
| Declination | −17 54 38.5 | d m s |
| V-band apparent magnitude | 11.65 | mag |
| K-band apparent magnitude | 9.66 | mag |
| Transit duration | 0.2069 ( 4.966 ) | day hour |
| Transit depth | 1.1 | % |
| Time of mid-transit | 2457325.81705 ± 0.00033 | HJD or BJD |
| Orbital period | 28.38229 ± 0.00027 | days |
| Reference for orbital ephemeris | arXiv:1702.00691 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5287 ± 60 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.21 ± 0.05 | dex |
| Stellar mass | 0.918 ± 0.028 | Msun |
| Stellar radius | 0.860 ± 0.031 | Rsun |
| Stellar logarithmic surface gravity | 4.504 ± 0.035 | c.g.s. |
| Stellar mean density | 1.55 ± 0.14 ( 2.19 ± 0.20 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.1811 ± 0.0085 | AU |
| Planetary mass | 0.381 ± 0.045 ( 121 ± 14 ) | Mjup Mearth |
| Planetary radius | 0.812 ± 0.030 ( 9.10 ± 0.34 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 0.66 ± 0.11 ( 0.88 ± 0.15 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 555 ± 11 | K |
| Reference of detailed study | arXiv:1702.00691 |
EPIC 218916923 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.
EPIC 218916923 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.
Page generated on 2018/03/01 John Southworth (Keele University, UK)