This page summarises the information held within TEPCat for the transiting planetary system MASCARA-1. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2017A+A...606A..73T | |
| Date of discovery paper | 2017 / 7 / 17 | y / m / d |
| Data/telescope used for discovery | MASCARA | |
| Right ascension | 21 10 12.37 | h m s |
| Declination | +10 44 19.9 | d m s |
| Right ascension (decimal) | 317.55154 | degrees |
| Declination (decimal) | 10.73886 | degrees |
| V-band apparent magnitude | 8.27 | mag |
| K-band apparent magnitude | 7.74 | mag |
| Transit duration | 0.1761 ( 4.226 ) | day hour |
| Transit depth | 0.62 | % |
| Time of mid-transit | 2458833.488151 ± 0.00009 | HJD or BJD |
| Orbital period | 2.14877381 ± 0.00000088 | days |
| Reference for orbital ephemeris | 2022A+A...658A..75H |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 7554 ± 150 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.15 ± 0.15 | dex |
| Stellar mass | 1.900 +0.078 −0.073 | Msun |
| Stellar radius | 2.082 +0.022 −0.024 | Rsun |
| Stellar logarithmic surface gravity | 4.099 +0.006 −0.007 | c.g.s. |
| Stellar mean density | 0.2104 +0.0019 −0.0017 ( 0.2969 +0.0027 −0.0024 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.00034 +0.00034 −0.00023 | |
| Orbital semimajor axis | 0.04035 ± 0.00005 | AU |
| Planetary mass | 3.7 ± 0.9 ( 11762 ± 2861 ) | Mjup Mearth |
| Planetary radius | 1.597 +0.018 −0.019 ( 17.90 + 0.20 − 0.21 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 1.1 ± 0.7 ( 1.46 ± 0.93 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 2594 ± 2 | K |
| Reference of detailed study | 2022A+A...658A..75H |
| Reference | λ (degrees) |
|---|---|
| Talens et al. (2017) | 69.5 ± 3 |
| Hooton et al. (2022) | 69.2 + 3.1 - 3.4 |
Page generated on 2025/01/01 John Southworth (Keele University, UK)