This page summarises the information held within TEPCat for the transiting planetary system NGTS-33. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2025MNRAS.536.1538A | |
| Date of discovery paper | 2024 / 11 / 15 | y / m / d |
| Data/telescope used for discovery | NGTS | |
| Right ascension | 07 11 20.00 | h m s |
| Declination | −35 51 01.9 | d m s |
| Right ascension (decimal) | 107.83333 | degrees |
| Declination (decimal) | -35.85053 | degrees |
| V-band apparent magnitude | 11.46 | mag |
| K-band apparent magnitude | 10.41 | mag |
| Transit duration | 0.109 ( 2.62 ) | day hour |
| Transit depth | 1.3 | % |
| Time of mid-transit | 2459986.4090 ± 0.0003 | HJD or BJD |
| Orbital period | 2.827972 ± 0.000001 | days |
| Reference for orbital ephemeris | 2025MNRAS.536.1538A |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 7437 ± 72 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.11 ± 0.17 | dex |
| Stellar mass | 1.60 ± 0.11 | Msun |
| Stellar radius | 1.47 ± 0.06 | Rsun |
| Stellar logarithmic surface gravity | 4.26 ± 0.28 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.048 ± 0.002 | AU |
| Planetary mass | 3.63 ± 0.27 ( 1153 ± 85 ) | Mjup Mearth |
| Planetary radius | 1.64 ± 0.07 ( 18.38 ± 0.78 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 0.14 ± 0.02 ( 0.186 ± 0.027 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1991 ± 21 | K |
| Reference of detailed study | 2025MNRAS.536.1538A |
NGTS-33 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)