This page summarises the information held within TEPCat for the transiting planetary system HAT-P-56. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2015AJ....150...85H | |
| Date of discovery paper | 2015 / 6 / 8 | y / m / d |
| Data/telescope used for discovery | HAT | |
| Right ascension | 06 43 23.53 | h m s |
| Declination | +27 15 08.2 | d m s |
| Right ascension (decimal) | 100.84804 | degrees |
| Declination (decimal) | 27.25228 | degrees |
| V-band apparent magnitude | 10.91 | mag |
| K-band apparent magnitude | 9.83 | mag |
| Transit duration | 0.09463 ( 2.2711 ) | day hour |
| Transit depth | 1.0 | % |
| Time of mid-transit | 2458822.55829 ± 0.00020 | HJD or BJD |
| Orbital period | 2.7908264 ± 0.0000012 | days |
| Reference for orbital ephemeris | 2022MNRAS.509.5102S |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6566 ± 50 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.077 ± 0.080 | dex |
| Stellar mass | 1.296 ± 0.036 | Msun |
| Stellar radius | 1.428 ± 0.030 | Rsun |
| Stellar logarithmic surface gravity | 4.240 ± 0.015 | c.g.s. |
| Stellar mean density | 0.444 ± 0.023 ( 0.626 ± 0.032 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.246 −0.0 | |
| Orbital semimajor axis | 0.04230 ± 0.00039 | AU |
| Planetary mass | 2.18 ± 0.25 ( 693 ± 79 ) | Mjup Mearth |
| Planetary radius | 1.466 +0.040 −0.04 ( 16.43 + 0.45 − 0.45 ) | Rjup Rearth |
| Planetary surface gravity | 25.2 +3.4 −3.0 3.40 +0.05 −0.06 | m/s2 log(cgs) |
| Planetary mean density | 0.65 ± 0.09 ( 0.86 ± 0.12 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1840 ± 21 | K |
| Reference of detailed study | 2015AJ....150...85H |
| Reference | λ (degrees) |
|---|---|
| Zhou et al. (2016) | 8 ± 2 |
Page generated on 2025/03/17 John Southworth (Keele University, UK)