This page summarises the information held within TEPCat for the transiting planetary system WASP-78. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2012A+A...547A..61S | |
| Date of discovery paper | 2012 / 6 / 7 | y / m / d |
| Data/telescope used for discovery | WASP | |
| Right ascension | 04 15 01.51 | h m s |
| Declination | −22 06 59.1 | d m s |
| Right ascension (decimal) | 63.75629 | degrees |
| Declination (decimal) | -22.11642 | degrees |
| V-band apparent magnitude | 11.96 | mag |
| K-band apparent magnitude | 11.01 | mag |
| Transit duration | 0.1953 ( 4.687 ) | day hour |
| Transit depth | 0.7 | % |
| Time of mid-transit | 2455882.35952 ± 0.00054 | HJD or BJD |
| Orbital period | 2.17518429 ± 0.00000078 | days |
| Reference for orbital ephemeris | 2020AJ....160..155W |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6100 ± 150 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.35 ± 0.14 | dex |
| Stellar mass | 1.39 +0.09 −0.08 | Msun |
| Stellar radius | 2.35 +0.10 −0.09 | Rsun |
| Stellar logarithmic surface gravity | 3.840 ± 0.024 | c.g.s. |
| Stellar mean density | 0.108 ± 0.010 ( 0.152 ± 0.014 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.24 −0.0 | |
| Orbital semimajor axis | 0.0367 ± 0.0008 | AU |
| Planetary mass | 0.86 ± 0.08 ( 273 ± 25 ) | Mjup Mearth |
| Planetary radius | 2.06 ± 0.10 ( 23.1 ± 1.1 ) | Rjup Rearth |
| Planetary surface gravity | 4.69 ± 0.48 2.67 ± 0.04 | m/s2 log(cgs) |
| Planetary mean density | 0.099 ± 0.014 ( 0.131 ± 0.019 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 2470 +54 −56 | K |
| Reference of detailed study | 2017MNRAS.464..810B |
| Reference | λ (degrees) |
|---|---|
| Brown et al. (2017) | −6.4 ± 5.9 |
Page generated on 2025/03/17 John Southworth (Keele University, UK)