This page summarises the information held within TEPCat for the transiting planetary system NGTS-17. Please see here for descriptions of the quantities given below.
Quantity | Value | Unit |
---|---|---|
Reference of discovery paper | 2021MNRAS.504.6018T | |
Date of discovery paper | 2021 / 3 / 19 | y / m / d |
Data/telescope used for discovery | NGTS | |
Right ascension | 04 51 36.14 | h m s |
Declination | −34 13 34.4 | d m s |
Right ascension (decimal) | 72.90058 | degrees |
Declination (decimal) | -34.22622 | degrees |
V-band apparent magnitude | 14.33 | mag |
K-band apparent magnitude | 12.72 | mag |
Transit duration | 0.1413 ( 3.391 ) | day hour |
Transit depth | 1.0 | % |
Time of mid-transit | 2458442.5219 ± 0.0009 | HJD or BJD |
Orbital period | 3.24253 ± 0.00001 | days |
Reference for orbital ephemeris | 2021MNRAS.504.6018T |
Quantity | Value | Unit |
---|---|---|
Stellar effective temperature | 5650 ± 100 | K |
Stellar metal abundance ([Fe/H] or [M/H]) | +0.15 ± 0.1 | dex |
Stellar mass | 1.025 +0.034 −0.033 | Msun |
Stellar radius | 1.337 ± 0.042 | Rsun |
Stellar logarithmic surface gravity | 4.00 ± 0.12 | c.g.s. |
Stellar mean density | ρsun g cm-3 | |
Orbital eccentricity | 0.0 | |
Orbital semimajor axis | 0.0391 ± 0.0043 | AU |
Planetary mass | 0.76 +0.20 −0.16 ( 241 +63 −50 ) | Mjup Mearth |
Planetary radius | 1.24 ± 0.11 ( 13.9 ± 1.2 ) | Rjup Rearth |
Planetary surface gravity | m/s2 log(cgs) | |
Planetary mean density | 0.38 +0.20 −0.13 ( 0.50 +0.27 −0.17 ) | ρjup g cm-3 |
Planetary equilibrium temperature | 1457 ± 50 | K |
Reference of detailed study | 2021MNRAS.504.6018T |
NGTS-17 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/04/12 John Southworth (Keele University, UK)