This page summarises the information held within TEPCat for the transiting planetary system KELT-23. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2019AJ....158...78J | |
| Date of discovery paper | 2019 / 3 / 5 | y / m / d |
| Data/telescope used for discovery | KELT | |
| Right ascension | 15 28 35.19 | h m s |
| Declination | +66 21 31.5 | d m s |
| Right ascension (decimal) | 232.14663 | degrees |
| Declination (decimal) | 66.35875 | degrees |
| V-band apparent magnitude | 10.25 | mag |
| K-band apparent magnitude | 8.90 | mag |
| Transit duration | 0.09923 ( 2.3815 ) | day hour |
| Transit depth | 2.0 | % |
| Time of mid-transit | 2458683.911353 ± 0.000022 | HJD or BJD |
| Orbital period | 2.25528756 ± 0.00000064 | days |
| Reference for orbital ephemeris | arXiv:2407.20846 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5900 ± 49 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.105 ± 0.077 | dex |
| Stellar mass | 0.945 +0.060 −0.054 | Msun |
| Stellar radius | 0.995 ± 0.015 | Rsun |
| Stellar logarithmic surface gravity | 4.418 +0.026 −0.025 | c.g.s. |
| Stellar mean density | 0.957 +0.064 −0.059 ( 1.350 +0.090 −0.083 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.067 −0.0 | |
| Orbital semimajor axis | 0.03303 +0.00068 −0.00064 | AU |
| Planetary mass | 0.938 +0.045 −0.042 ( 298 +14 −13 ) | Mjup Mearth |
| Planetary radius | 1.322 ± 0.025 ( 14.82 ± 0.28 ) | Rjup Rearth |
| Planetary surface gravity | 13.30 +0.82 −0.77 3.12 +0.03 −0.03 | m/s2 log(cgs) |
| Planetary mean density | 0.380 +0.029 −0.026 ( 0.504 +0.038 −0.034 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1561 ± 20 | K |
| Reference of detailed study | 2019AJ....158...78J |
KELT-23 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/24 John Southworth (Keele University, UK)