This page summarises the information held within TEPCat for the transiting planetary system NGTS-39. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:2607.02061 | |
| Date of discovery paper | 2026 / 7 / 3 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 07 19 45.29 | h m s |
| Declination | +09 56 28.6 | d m s |
| Right ascension (decimal) | 109.93871 | degrees |
| Declination (decimal) | 9.94128 | degrees |
| V-band apparent magnitude | 11.52 | mag |
| K-band apparent magnitude | 10.20 | mag |
| Transit duration | 0.193 ( 4.63 ) | day hour |
| Transit depth | 1.0 | % |
| Time of mid-transit | 2460157.03626 ± 0.00055 | HJD or BJD |
| Orbital period | 58.204720 ± 0.000040 | days |
| Reference for orbital ephemeris | arXiv:2607.02061 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6053 +67 −30 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.196 ± 0.023 | dex |
| Stellar mass | 1.16 ± 0.05 | Msun |
| Stellar radius | 1.16 ± 0.01 | Rsun |
| Stellar logarithmic surface gravity | 4.419 ± 0.042 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.386 ± 0.019 | |
| Orbital semimajor axis | 0.3077 +0.0055 −0.005 | AU |
| Planetary mass | 1.467 ± 0.081 ( 466 ± 25 ) | Mjup Mearth |
| Planetary radius | 1.088 ± 0.012 ( 12.20 ± 0.13 ) | Rjup Rearth |
| Planetary surface gravity | 30.4 +1.5 −1.4 3.48 +0.02 −0.02 | m/s2 log(cgs) |
| Planetary mean density | 1.064 ± 0.069 ( 1.411 ± 0.092 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 519 +6 −5 | K |
| Reference of detailed study | arXiv:2607.02061 |
NGTS-39 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2026/07/07 John Southworth (Keele University, UK)