This page summarises the information held within TEPCat for the transiting planetary system XO-1. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2006ApJ...648.1228M | |
| Date of discovery paper | 2006 / 4 / 6 | y / m / d |
| Data/telescope used for discovery | XO | |
| Right ascension | 16 02 11.84 | h m s |
| Declination | +28 10 10.4 | d m s |
| Right ascension (decimal) | 240.54933 | degrees |
| Declination (decimal) | 28.16956 | degrees |
| V-band apparent magnitude | 11.14 | mag |
| K-band apparent magnitude | 9.53 | mag |
| Transit duration | 0.1238 ( 2.971 ) | day hour |
| Transit depth | 1.9 | % |
| Time of mid-transit | 2455314.572766 ± 0.000049 | HJD or BJD |
| Orbital period | 3.94150514 ± 0.00000020 | days |
| Reference for orbital ephemeris | 2018MNRAS.481.4261S |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5740 ± 50 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.03 ± 0.05 | dex |
| Stellar mass | 1.018 ± 0.044 | Msun |
| Stellar radius | 0.930 ± 0.015 | Rsun |
| Stellar logarithmic surface gravity | 4.509 ± 0.010 | c.g.s. |
| Stellar mean density | 1.265 ± 0.030 ( 1.785 ± 0.042 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.043 −0.0 | |
| Orbital semimajor axis | 0.04914 ± 0.00070 | AU |
| Planetary mass | 0.907 ± 0.030 ( 288.33 ± 9.54 ) | Mjup Mearth |
| Planetary radius | 1.199 ± 0.021 ( 13.44 ± 0.24 ) | Rjup Rearth |
| Planetary surface gravity | 15.65 ± 0.40 3.19 ± 0.01 | m/s2 log(cgs) |
| Planetary mean density | 0.492 ± 0.019 ( 0.653 ± 0.025 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1204 ± 11 | K |
| Reference of detailed study | 2018MNRAS.481.4261S |
XO-1 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)