This page summarises the information held within TEPCat for the transiting brown dwarf system NGTS-19. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2021MNRAS.505.2741A | |
| Date of discovery paper | 2021 / 5 / 19 | y / m / d |
| Data/telescope used for discovery | NGTS | |
| Right ascension | 15 16 31.60 | h m s |
| Declination | −25 42 17.2 | d m s |
| Right ascension (decimal) | 229.13167 | degrees |
| Declination (decimal) | -25.70478 | degrees |
| V-band apparent magnitude | 14.12 | mag |
| K-band apparent magnitude | 11.70 | mag |
| Transit duration | 0.17 ( 4.1 ) | day hour |
| Transit depth | 1.4 | % |
| Time of mid-transit | 2458533.0207 ± 0.0011 | HJD or BJD |
| Orbital period | 17.839654 ± 0.000038 | days |
| Reference for orbital ephemeris | 2021MNRAS.505.2741A |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4716 +39 −28 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.11 +0.074 −0.070 | dex |
| Stellar mass | 0.807 +0.038 −0.043 | Msun |
| Stellar radius | 0.896 +0.040 −0.035 | Rsun |
| Stellar logarithmic surface gravity | 4.571 +0.102 −0.093 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.3767 ± 0.0061 | |
| Orbital semimajor axis | 0.1296 +0.074 −0.072 | AU |
| Planetary mass | 69.5 +5.7 −5.4 ( 22093 +1812 −1717 ) | Mjup Mearth |
| Planetary radius | 1.034 +0.055 −0.053 ( 11.59 + 0.62 − 0.59 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 58 +13 −10 ( 76 +17 −13 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 543 +17 −16 | K |
| Reference of detailed study | 2021MNRAS.505.2741A |
NGTS-19 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)