This page summarises the information held within TEPCat for the transiting planetary system NGTS-23. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2023MNRAS.518.4845J | |
| Date of discovery paper | 2022 / 11 / 3 | y / m / d |
| Data/telescope used for discovery | NGTS | |
| Right ascension | 04 41 43.74 | h m s |
| Declination | −40 02 40.4 | d m s |
| Right ascension (decimal) | 70.43225 | degrees |
| Declination (decimal) | -40.04456 | degrees |
| V-band apparent magnitude | 14.01 | mag |
| K-band apparent magnitude | 12.73 | mag |
| Transit duration | 0.1633 ( 3.919 ) | day hour |
| Transit depth | 1.0 | % |
| Time of mid-transit | 2458431.77134 ± 0.00048 | HJD or BJD |
| Orbital period | 4.0764326 ± 0.0000041 | days |
| Reference for orbital ephemeris | 2023MNRAS.518.4845J |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6057 ± 64 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.26 ± 0.11 | dex |
| Stellar mass | 1.01 +0.06 −0.07 | Msun |
| Stellar radius | 1.24 ± 0.03 | Rsun |
| Stellar logarithmic surface gravity | 4.04 ± 0.15 | c.g.s. |
| Stellar mean density | 0.535 +0.019 −0.024 ( 0.755 +0.027 −0.034 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.0504 ± 0.0012 | AU |
| Planetary mass | 0.613 ± 0.097 ( 194 ± 30 ) | Mjup Mearth |
| Planetary radius | 1.267 +0.030 −0.03 ( 14.20 + 0.34 − 0.34 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 0.282 +0.053 −0.048 ( 0.374 +0.070 −0.064 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1327 +17 −16 | K |
| Reference of detailed study | 2023MNRAS.518.4845J |
NGTS-23 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/24 John Southworth (Keele University, UK)