This page summarises the information held within TEPCat for the transiting planetary system LTT 9779. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2020NatAs...4.1148J | |
| Date of discovery paper | 2020 / 9 / 29 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 23 54 40.60 | h m s |
| Declination | −37 37 42.2 | d m s |
| Right ascension (decimal) | 358.66917 | degrees |
| Declination (decimal) | -37.62839 | degrees |
| V-band apparent magnitude | 9.76 | mag |
| K-band apparent magnitude | 8.02 | mag |
| Transit duration | 0.035 ( 0.84 ) | day hour |
| Transit depth | 0.2 | % |
| Time of mid-transit | 2459043.310602 ± 0.000090 | HJD or BJD |
| Orbital period | 0.79206410 ± 0.00000014 | days |
| Reference for orbital ephemeris | arXiv:2306.13645 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5445 ± 84 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.25 ± 0.08 | dex |
| Stellar mass | 1.03 +0.03 −0.04 | Msun |
| Stellar radius | 0.95 ± 0.01 | Rsun |
| Stellar logarithmic surface gravity | 4.43 ± 0.31 | c.g.s. |
| Stellar mean density | 1.28 +0.04 −0.05 ( 1.806 +0.056 −0.071 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.01679 +0.00014 −0.00012 | AU |
| Planetary mass | 0.0922 ± 0.0025 ( 29.31 ± 0.79 ) | Mjup Mearth |
| Planetary radius | 0.421 ± 0.021 ( 4.72 ± 0.24 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 1.158 ± 0.093 ( 1.54 ± 0.12 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1978 ± 19 | K |
| Reference of detailed study | 2020NatAs...4.1148J |
LTT 9779 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/11/22 John Southworth (Keele University, UK)