This page summarises the information held within TEPCat for the transiting planetary system HAT-P-68. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2021AJ....161...64L | |
| Date of discovery paper | 2020 / 11 / 2 | y / m / d |
| Data/telescope used for discovery | HAT | |
| Right ascension | 07 53 55.98 | h m s |
| Declination | +23 56 17.6 | d m s |
| Right ascension (decimal) | 118.48325 | degrees |
| Declination (decimal) | 23.93822 | degrees |
| V-band apparent magnitude | 13.94 | mag |
| K-band apparent magnitude | 11.02 | mag |
| Transit duration | 0.08695 ( 2.0868 ) | day hour |
| Transit depth | 3.6 | % |
| Time of mid-transit | 2456614.20355 ± 0.00014 | HJD or BJD |
| Orbital period | 2.29840551 ± 0.00000052 | days |
| Reference for orbital ephemeris | 2021AJ....161...64L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4508 ± 43 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.059 ± 0.036 | dex |
| Stellar mass | 0.679 +0.029 −0.008 | Msun |
| Stellar radius | 0.6701 +0.0041 −0.0032 | Rsun |
| Stellar logarithmic surface gravity | 4.615 ± 0.013 | c.g.s. |
| Stellar mean density | 2.24 +0.13 −0.03 ( 3.161 +0.183 −0.042 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.041 −0.0 | |
| Orbital semimajor axis | 0.02996 +0.00043 −0.00012 | AU |
| Planetary mass | 0.724 ± 0.043 ( 230 ± 13 ) | Mjup Mearth |
| Planetary radius | 1.072 ± 0.012 ( 12.02 ± 0.13 ) | Rjup Rearth |
| Planetary surface gravity | 15.6 +1.1 −1.0 3.19 +0.03 −0.03 | m/s2 log(cgs) |
| Planetary mean density | 0.548 ± 0.038 ( 0.727 ± 0.050 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1028 ± 8 | K |
| Reference of detailed study | 2021AJ....161...64L |
HAT-P-68 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/09/04 John Southworth (Keele University, UK)