This page summarises the information held within TEPCat for the transiting planetary system NGTS-20. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2022A+A...666A..46U | |
| Date of discovery paper | 2022 / 7 / 11 | y / m / d |
| Data/telescope used for discovery | NGTS | |
| Right ascension | 03 05 10.23 | h m s |
| Declination | −21 56 01.1 | d m s |
| Right ascension (decimal) | 46.29263 | degrees |
| Declination (decimal) | -21.93364 | degrees |
| V-band apparent magnitude | 11.23 | mag |
| K-band apparent magnitude | 9.83 | mag |
| Transit duration | 0.190 ( 4.56 ) | day hour |
| Transit depth | 0.4 | % |
| Time of mid-transit | 2458432.9798 ± 0.0025 | HJD or BJD |
| Orbital period | 54.18915 ± 0.00015 | days |
| Reference for orbital ephemeris | 2022A+A...666A..46U |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5980 ± 80 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.15 ± 0.08 | dex |
| Stellar mass | 1.47 ± 0.09 | Msun |
| Stellar radius | 1.78 ± 0.05 | Rsun |
| Stellar logarithmic surface gravity | 3.8 ± 0.2 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.432 ± 0.023 | |
| Orbital semimajor axis | 0.313 ± 0.013 | AU |
| Planetary mass | 2.98 +0.16 −0.15 ( 947 +50 −47 ) | Mjup Mearth |
| Planetary radius | 1.07 ± 0.04 ( 11.99 ± 0.45 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 688 +14 −13 | K |
| Reference of detailed study | 2022A+A...666A..46U |
NGTS-20 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2023/09/01 John Southworth (Keele University, UK)