This page summarises the information held within TEPCat for the transiting planetary system TOI-677. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2020AJ....159..145J | |
| Date of discovery paper | 2019 / 11 / 14 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 09 36 28.69 | h m s |
| Declination | −50 27 47.8 | d m s |
| Right ascension (decimal) | 144.11954 | degrees |
| Declination (decimal) | -50.46328 | degrees |
| V-band apparent magnitude | 9.74 | mag |
| K-band apparent magnitude | 8.43 | mag |
| Transit duration | 0.1056 ( 2.534 ) | day hour |
| Transit depth | 0.9 | % |
| Time of mid-transit | 2458547.47449 ± 0.00016 | HJD or BJD |
| Orbital period | 11.2365985 ± 0.000019 | days |
| Reference for orbital ephemeris | 2024AJ....167..175H |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6295 ± 80 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.02 ± 0.05 | dex |
| Stellar mass | 1.181 ± 0.058 | Msun |
| Stellar radius | 1.28 ± 0.03 | Rsun |
| Stellar logarithmic surface gravity | 4.286 +0.016 −0.015 | c.g.s. |
| Stellar mean density | 0.57 ± 0.04 ( 0.804 ± 0.056 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.460 +0.019 −0.018 | |
| Orbital semimajor axis | 0.1041 +0.0035 −0.0034 | AU |
| Planetary mass | 1.234 +0.083 −0.084 ( 392 +26 −26 ) | Mjup Mearth |
| Planetary radius | 1.179 +0.029 −0.030 ( 13.22 + 0.33 − 0.34 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 1252 ± 21 | K |
| Reference of detailed study | 2024AJ....167..175H |
| Reference | λ (degrees) |
|---|---|
| Sedaghati et al. (2023) | 0.3 ± 1.3 |
| Hu et al. (2024) | 3.2 + 1.6 - 1.5 |
| Prinoth et al. (2024) | 0 ± 1 |
Page generated on 2025/03/24 John Southworth (Keele University, UK)