This page summarises the information held within TEPCat for the transiting planetary system HATS-9. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2015AJ....150...33B | |
| Date of discovery paper | 2015 / 3 / 3 | y / m / d |
| Data/telescope used for discovery | HATS | |
| Right ascension | 19 23 14.28 | h m s |
| Declination | −20 09 58.7 | d m s |
| Right ascension (decimal) | 290.80950 | degrees |
| Declination (decimal) | -20.16631 | degrees |
| V-band apparent magnitude | 13.28 | mag |
| K-band apparent magnitude | 11.48 | mag |
| Transit duration | 0.14618 ( 3.5083 ) | day hour |
| Transit depth | 0.7 | % |
| Time of mid-transit | 2457380.702470 ± 0.000036 | HJD or BJD |
| Orbital period | 1.91531100 ± 0.00000094 | days |
| Reference for orbital ephemeris | 2018AJ....155..119B |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5366 ± 70 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.340 ± 0.050 | dex |
| Stellar mass | 1.030 ± 0.039 | Msun |
| Stellar radius | 1.503 +0.101 −0.043 | Rsun |
| Stellar logarithmic surface gravity | 4.095 ± 0.038 | c.g.s. |
| Stellar mean density | 0.303 +0.021 −0.050 ( 0.428 +0.030 −0.071 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.129 −0.0 | |
| Orbital semimajor axis | 0.03048 ± 0.00038 | AU |
| Planetary mass | 0.816 ± 0.038 ( 259 ± 12 ) | Mjup Mearth |
| Planetary radius | 1.1724 ± 0.0098 ( 13.14 ± 0.11 ) | Rjup Rearth |
| Planetary surface gravity | 17.9 +3.0 −2.6 3.25 +0.07 −0.07 | m/s2 log(cgs) |
| Planetary mean density | 0.472 ± 0.022 ( 0.626 ± 0.029 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1823 +52 −35 | K |
| Reference of detailed study | 2018AJ....155..119B |
HATS-9 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)