This page summarises the information held within TEPCat for the transiting planetary system KELT-4. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2016AJ....151...45E | |
| Date of discovery paper | 2015 / 10 / 2 | y / m / d |
| Data/telescope used for discovery | KELT | |
| Right ascension | 10 28 15.01 | h m s |
| Declination | +25 34 23.5 | d m s |
| Right ascension (decimal) | 157.06254 | degrees |
| Declination (decimal) | 25.57319 | degrees |
| V-band apparent magnitude | 9.98 | mag |
| K-band apparent magnitude | 8.69 | mag |
| Transit duration | 0.1443 ( 3.463 ) | day hour |
| Transit depth | 1.3 | % |
| Time of mid-transit | 2459610.39041 ± 0.00022 | HJD or BJD |
| Orbital period | 2.989582 ± 0.000044 | days |
| Reference for orbital ephemeris | 2023ApJS..268....2S |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6206 ± 75 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.116 +0.065 −0.069 | dex |
| Stellar mass | 1.201 +0.067 −0.061 | Msun |
| Stellar radius | 1.603 +0.039 −0.038 | Rsun |
| Stellar logarithmic surface gravity | 4.108 ± 0.014 | c.g.s. |
| Stellar mean density | 0.291 ± 0.012 ( 0.411 ± 0.017 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.138 −0.0 | |
| Orbital semimajor axis | 0.04317 +0.00079 −0.00074 | AU |
| Planetary mass | 0.902 +0.060 −0.059 ( 286 +19 −18 ) | Mjup Mearth |
| Planetary radius | 1.699 +0.046 −0.045 ( 19.04 + 0.52 − 0.50 ) | Rjup Rearth |
| Planetary surface gravity | 7.74 +0.53 −0.52 2.89 +0.03 −0.03 | m/s2 log(cgs) |
| Planetary mean density | 0.172 ± 0.014 ( 0.228 ± 0.019 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1823 ± 27 | K |
| Reference of detailed study | 2016AJ....151...45E |
KELT-4 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/24 John Southworth (Keele University, UK)