This page summarises the information held within TEPCat for the transiting planetary system NGTS-25. 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 | 20 29 40.38 | h m s |
| Declination | −39 01 55.5 | d m s |
| Right ascension (decimal) | 307.41825 | degrees |
| Declination (decimal) | -39.03208 | degrees |
| V-band apparent magnitude | 14.27 | mag |
| K-band apparent magnitude | 12.32 | mag |
| Transit duration | 0.1028 ( 2.467 ) | day hour |
| Transit depth | 2.0 | % |
| Time of mid-transit | 2458204.26373 ± 0.00050 | HJD or BJD |
| Orbital period | 2.8230930 ± 0.0000033 | days |
| Reference for orbital ephemeris | 2023MNRAS.518.4845J |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5321 ± 58 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.37 ± 0.07 | dex |
| Stellar mass | 0.91 +0.03 −0.04 | Msun |
| Stellar radius | 0.86 +0.02 −0.05 | Rsun |
| Stellar logarithmic surface gravity | 4.48 ± 0.14 | c.g.s. |
| Stellar mean density | 1.573 +0.060 −0.078 ( 2.220 +0.085 −0.110 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.0388 +0.0014 −0.0020 | AU |
| Planetary mass | 0.639 +0.058 −0.052 ( 203 +18 −16 ) | Mjup Mearth |
| Planetary radius | 1.023 +0.035 −0.052 ( 11.47 + 0.39 − 0.58 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 0.672 +0.075 −0.067 ( 0.891 +0.099 −0.089 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1101 +15 −14 | K |
| Reference of detailed study | 2023MNRAS.518.4845J |
NGTS-25 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)