This page summarises the information held within TEPCat for the transiting planetary system NGTS-1. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2018MNRAS.475.4467B | |
| Date of discovery paper | 2017 / 10 / 31 | y / m / d |
| Data/telescope used for discovery | NGTS | |
| Right ascension | 05 30 51.45 | h m s |
| Declination | −36 37 50.8 | d m s |
| Right ascension (decimal) | 82.71438 | degrees |
| Declination (decimal) | -36.63078 | degrees |
| V-band apparent magnitude | 15.52 | mag |
| K-band apparent magnitude | 11.94 | mag |
| Transit duration | 0.0513 ( 1.231 ) | day hour |
| Transit depth | 2.3 | % |
| Time of mid-transit | 2457720.65939 ± 0.00067 | HJD or BJD |
| Orbital period | 2.647297 ± 0.000021 | days |
| Reference for orbital ephemeris | 2018MNRAS.475.4467B |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3916 +71 −63 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0 | dex |
| Stellar mass | 0.617 +0.023 −0.062 | Msun |
| Stellar radius | 0.573 ± 0.077 | Rsun |
| Stellar logarithmic surface gravity | 4.71 ± 0.23 | c.g.s. |
| Stellar mean density | 3.1 +1.7 −1.0 ( 4.4 +2.4 −1.4 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.016 +0.023 −0.016 | |
| Orbital semimajor axis | 0.0326 +0.0047 −0.0045 | AU |
| Planetary mass | 0.812 +0.066 −0.075 ( 258 +20 −23 ) | Mjup Mearth |
| Planetary radius | 1.33 +0.61 −0.33 ( 14.9 + 6.8 − 3.7 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 0.32 +0.44 −0.21 ( 0.42 +0.58 −0.28 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 790 ± 20 | K |
| Reference of detailed study | 2018MNRAS.475.4467B |
NGTS-1 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/09/04 John Southworth (Keele University, UK)