This page summarises the information held within TEPCat for the transiting planetary system Qatar-7. Please see here for descriptions of the quantities given below.
Quantity | Value | Unit |
---|---|---|
Reference of discovery paper | 2019AJ....157...74A | |
Date of discovery paper | 2018 / 12 / 14 | y / m / d |
Data/telescope used for discovery | Qatar | |
Right ascension | 23 54 03.63 | h m s |
Declination | +37 01 18.6 | d m s |
Right ascension (decimal) | 358.51513 | degrees |
Declination (decimal) | 37.02183 | degrees |
V-band apparent magnitude | 13.03 | mag |
K-band apparent magnitude | 11.56 | mag |
Transit duration | 0.1491 ( 3.578 ) | day hour |
Transit depth | 1.2 | % |
Time of mid-transit | 2458043.32075 ± 0.00016 | HJD or BJD |
Orbital period | 2.032070 ± 0.0000017 | days |
Reference for orbital ephemeris | 2019AJ....157...74A |
Quantity | Value | Unit |
---|---|---|
Stellar effective temperature | 6387 ± 38 | K |
Stellar metal abundance ([Fe/H] or [M/H]) | +0.276 ± 0.071 | dex |
Stellar mass | 1.409 ± 0.026 | Msun |
Stellar radius | 1.564 ± 0.021 | Rsun |
Stellar logarithmic surface gravity | 4.196 ± 0.029 | c.g.s. |
Stellar mean density | 0.369 ± 0.011 ( 0.521 ± 0.016 ) | ρsun g cm-3 |
Orbital eccentricity | 0.0 | |
Orbital semimajor axis | 0.0352 ± 0.0002 | AU |
Planetary mass | 1.88 ± 0.25 ( 597 ± 79 ) | Mjup Mearth |
Planetary radius | 1.70 ± 0.03 ( 19.06 ± 0.34 ) | Rjup Rearth |
Planetary surface gravity | 16.7 +2.7 −2.4 3.22 +0.07 −0.07 | m/s2 log(cgs) |
Planetary mean density | 0.378 ± 0.054 ( 0.501 ± 0.072 ) | ρjup g cm-3 |
Planetary equilibrium temperature | 2053 ± 15 | K |
Reference of detailed study | 2019AJ....157...74A |
Qatar-7 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/02/12 John Southworth (Keele University, UK)