This page summarises the information held within TEPCat for the transiting planetary system HAT-P-34. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2012AJ....144...19B | |
| Date of discovery paper | 2012 / 1 / 4 | y / m / d |
| Data/telescope used for discovery | HAT | |
| Right ascension | 20 12 46.88 | h m s |
| Declination | +18 06 17.5 | d m s |
| Right ascension (decimal) | 303.19533 | degrees |
| Declination (decimal) | 18.10486 | degrees |
| V-band apparent magnitude | 10.16 | mag |
| K-band apparent magnitude | 9.25 | mag |
| Transit duration | 0.1455 ( 3.492 ) | day hour |
| Transit depth | 0.8 | % |
| Time of mid-transit | 2458686.82646 ± 0.00025 | HJD or BJD |
| Orbital period | 5.4526482 ± 0.0000018 | days |
| Reference for orbital ephemeris | arXiv:2407.20846 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6442 ± 88 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.22 ± 0.04 | dex |
| Stellar mass | 1.392 ± 0.047 | Msun |
| Stellar radius | 1.535 +0.135 −0.102 | Rsun |
| Stellar logarithmic surface gravity | 4.21 ± 0.06 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.441 ± 0.032 | |
| Orbital semimajor axis | 0.0677 ± 0.0008 | AU |
| Planetary mass | 3.328 ± 0.211 ( 1057 ± 67 ) | Mjup Mearth |
| Planetary radius | 1.197 +0.128 −0.092 ( 13.4 + 1.4 − 1.0 ) | Rjup Rearth |
| Planetary surface gravity | 58 ± 11 3.76 ± 0.08 | m/s2 log(cgs) |
| Planetary mean density | 1.81 ± 0.47 ( 2.40 ± 0.62 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1520 ± 60 | K |
| Reference of detailed study | 2012AJ....144...19B |
| Reference | λ (degrees) |
|---|---|
| Albrecht et al. (2012) | 0 ± 14 |
Page generated on 2025/03/24 John Southworth (Keele University, UK)