This page summarises the information held within TEPCat for the transiting planetary system HAT-P-11. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2010ApJ...710.1724B | |
| Date of discovery paper | 2009 / 1 / 2 | y / m / d |
| Data/telescope used for discovery | HAT | |
| Right ascension | 19 50 50.25 | h m s |
| Declination | +48 04 51.1 | d m s |
| Right ascension (decimal) | 297.70938 | degrees |
| Declination (decimal) | 48.08086 | degrees |
| V-band apparent magnitude | 9.47 | mag |
| K-band apparent magnitude | 7.01 | mag |
| Transit duration | 0.0980 ( 2.352 ) | day hour |
| Transit depth | 0.43 | % |
| Time of mid-transit | 2454957.813207 ± 0.000005 | HJD or BJD |
| Orbital period | 4.887802443 ± 0.000000034 | days |
| Reference for orbital ephemeris | 2024A+A...686A.127B |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4780 ± 50 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.31 ± 0.05 | dex |
| Stellar mass | 0.86 ± 0.06 | Msun |
| Stellar radius | 0.76 ± 0.01 | Rsun |
| Stellar logarithmic surface gravity | 4.563 +0.092 −0.080 | c.g.s. |
| Stellar mean density | 1.915 ± 0.081 ( 2.70 ± 0.11 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.2577 +0.0033 −0.0025 | |
| Orbital semimajor axis | 0.0532 ± 0.0010 | AU |
| Planetary mass | 0.0787 ± 0.0048 ( 25.0 ± 1.5 ) | Mjup Mearth |
| Planetary radius | 0.4466 ± 0.0059 ( 5.006 ± 0.066 ) | Rjup Rearth |
| Planetary surface gravity | 13.2 ± 1.1 3.12 ± 0.03 | m/s2 log(cgs) |
| Planetary mean density | 0.884 ± 0.064 ( 1.173 ± 0.085 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 847 +46 −54 | K |
| Reference of detailed study | 2024A+A...686A.127B |
| Reference | λ (degrees) |
|---|---|
| Winn et al. (2010) | 103 + 26 - 10 |
| Hirano et al. (2011) | 103 + 22 - 18 |
| Sanchis-Ojeda et al. (2011) solution 1 | 106 + 15 - 12 |
| Sanchis-Ojeda et al. (2011) solution 2 | 121 + 24 - 21 |
| Deming et al. (2011) | almost polar orbit |
| Bourrier et al. (2023) | 133.9 + 7.1 - 8.3 |
Page generated on 2024/09/04 John Southworth (Keele University, UK)