This page summarises the information held within TEPCat for the transiting planetary system HATS-20. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:1607.00322 | |
| Date of discovery paper | 2016 / 7 / 4 | y / m / d |
| Data/telescope used for discovery | HATS | |
| Right ascension | 13 12 32.04 | h m s |
| Declination | −45 35 26.0 | d m s |
| Right ascension (decimal) | 198.13350 | degrees |
| Declination (decimal) | -45.59056 | degrees |
| V-band apparent magnitude | 13.77 | mag |
| K-band apparent magnitude | 11.86 | mag |
| Transit duration | 0.1022 ( 2.453 ) | day hour |
| Transit depth | 1.0 | % |
| Time of mid-transit | 2457121.16516 ± 0.00055 | HJD or BJD |
| Orbital period | 3.7992969 ± 0.0000079 | days |
| Reference for orbital ephemeris | arXiv:1607.00322 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5406 ± 49 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.030 ± 0.050 | dex |
| Stellar mass | 0.910 ± 0.026 | Msun |
| Stellar radius | 0.892 +0.057 −0.040 | Rsun |
| Stellar logarithmic surface gravity | 4.497 ± 0.052 | c.g.s. |
| Stellar mean density | 1.28 ± 0.21 ( 1.81 ± 0.30 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.501 −0.0 | |
| Orbital semimajor axis | 0.04619 ± 0.00044 | AU |
| Planetary mass | 0.273 ± 0.035 ( 86 ± 11 ) | Mjup Mearth |
| Planetary radius | 0.776 ± 0.055 ( 8.70 ± 0.62 ) | Rjup Rearth |
| Planetary surface gravity | 11.2 +2.4 −2.0 3.05 +0.08 −0.09 | m/s2 log(cgs) |
| Planetary mean density | 0.55 ± 0.14 ( 0.73 ± 0.19 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1147 ± 36 | K |
| Reference of detailed study | arXiv:1607.00322 |
HATS-20 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/12 John Southworth (Keele University, UK)