This page summarises the information held within TEPCat for the transiting planetary system KELT-8. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2015ApJ...810...30F | |
| Date of discovery paper | 2015 / 5 / 26 | y / m / d |
| Data/telescope used for discovery | KELT | |
| Right ascension | 18 53 13.32 | h m s |
| Declination | +24 07 38.5 | d m s |
| Right ascension (decimal) | 283.30550 | degrees |
| Declination (decimal) | 24.12736 | degrees |
| V-band apparent magnitude | 10.83 | mag |
| K-band apparent magnitude | 9.18 | mag |
| Transit duration | 0.1444 ( 3.466 ) | day hour |
| Transit depth | 1.3 | % |
| Time of mid-transit | 2457396.04496 ± 0.00055 | HJD or BJD |
| Orbital period | 3.2440796 ± 0.0000048 | days |
| Reference for orbital ephemeris | 2019A+A...622A..81M |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5754 +54 −55 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.272 ± 0.038 | dex |
| Stellar mass | 1.211 +0.078 −0.066 | Msun |
| Stellar radius | 1.67 +0.14 −0.12 | Rsun |
| Stellar logarithmic surface gravity | 4.078 +0.049 −0.054 | c.g.s. |
| Stellar mean density | 0.262 +0.052 −0.048 ( 0.370 +0.073 −0.068 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.035 +0.050 −0.025 | |
| Orbital semimajor axis | 0.04571 +0.00096 −0.00084 | AU |
| Planetary mass | 0.867 +0.065 −0.061 ( 275 +20 −19 ) | Mjup Mearth |
| Planetary radius | 1.86 +0.18 −0.16 ( 20.8 + 2.0 − 1.8 ) | Rjup Rearth |
| Planetary surface gravity | 6.2 +1.1 −1.0 2.79 +0.07 −0.08 | m/s2 log(cgs) |
| Planetary mean density | 0.126 +0.035 −0.029 ( 0.167 +0.046 −0.038 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1675 +61 −55 | K |
| Reference of detailed study | 2015ApJ...810...30F |
KELT-8 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/09/04 John Southworth (Keele University, UK)