This page summarises the information held within TEPCat for the transiting planetary system MASCARA-4. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2020A+A...635A..60D | |
| Date of discovery paper | 2019 / 4 / 8 | y / m / d |
| Data/telescope used for discovery | MASCARA | |
| Right ascension | 09 50 19.20 | h m s |
| Declination | −66 06 49.9 | d m s |
| Right ascension (decimal) | 147.58000 | degrees |
| Declination (decimal) | -66.11386 | degrees |
| V-band apparent magnitude | 8.19 | mag |
| K-band apparent magnitude | 7.75 | mag |
| Transit duration | 0.1654 ( 3.970 ) | day hour |
| Transit depth | 0.5 | % |
| Time of mid-transit | 2458909.66419 ± 0.00046 | HJD or BJD |
| Orbital period | 2.8240932 ± 0.0000046 | days |
| Reference for orbital ephemeris | 2022A+A...666A..47Z |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 7810 ± 165 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.17 ± 0.12 | dex |
| Stellar mass | 1.75 ± 0.05 | Msun |
| Stellar radius | 1.79 ± 0.04 | Rsun |
| Stellar logarithmic surface gravity | 4.10 ± 0.05 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.0474 ± 0.0013 | AU |
| Planetary mass | 1.68 ± 0.24 ( 534 ± 76 ) | Mjup Mearth |
| Planetary radius | 1.515 ± 0.044 ( 16.98 ± 0.49 ) | Rjup Rearth |
| Planetary surface gravity | 18.1 ± 2.9 3.26 ± 0.06 | m/s2 log(cgs) |
| Planetary mean density | 0.481 +0.085 −0.079 ( 0.64 +0.11 −0.10 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 2250 ± 62 | K |
| Reference of detailed study | 2022A+A...666A..47Z |
| Reference | λ (degrees) |
|---|---|
| Dorval et al. (2020) | 247.5 + 1.5 - 1.7 |
| Ahlers et al. (2020) | 244 ± 15 |
| Zhang et al. (2022) | 250.34 ± 0.14 |
Page generated on 2025/03/24 John Southworth (Keele University, UK)