This page summarises the information held within TEPCat for the transiting planetary system TrES-4. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2007ApJ...667L.195M | |
| Date of discovery paper | 2007 / 6 / 18 | y / m / d |
| Data/telescope used for discovery | TrES | |
| Right ascension | 17 53 13.06 | h m s |
| Declination | +37 12 42.4 | d m s |
| Right ascension (decimal) | 268.30442 | degrees |
| Declination (decimal) | 37.21178 | degrees |
| V-band apparent magnitude | 11.59 | mag |
| K-band apparent magnitude | 10.33 | mag |
| Transit duration | 0.1524 ( 3.658 ) | day hour |
| Transit depth | 1.1 | % |
| Time of mid-transit | 2454230.90560 ± 0.00030 | HJD or BJD |
| Orbital period | 3.55392771 ± 0.00000047 | days |
| Reference for orbital ephemeris | 2015A+A...575L..15S |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6295 ± 65 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.28 ± 0.09 | dex |
| Stellar mass | 1.45 ± 0.05 | Msun |
| Stellar radius | 1.81 ± 0.08 | Rsun |
| Stellar logarithmic surface gravity | 4.09 ± 0.03 | c.g.s. |
| Stellar mean density | 0.246 +0.030 −0.022 ( 0.347 +0.042 −0.031 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.016 −0.0 | |
| Orbital semimajor axis | 0.0516 ± 0.0005 | AU |
| Planetary mass | 0.494 ± 0.035 ( 157 ± 11 ) | Mjup Mearth |
| Planetary radius | 1.838 +0.081 −0.090 ( 20.60 + 0.91 − 1.01 ) | Rjup Rearth |
| Planetary surface gravity | 2.82 +0.34 −0.31 2.45 +0.05 −0.05 | m/s2 log(cgs) |
| Planetary mean density | 0.075 +0.012 −0.010 ( 0.099 +0.016 −0.013 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1795 +35 −39 | K |
| Reference of detailed study | 2015A+A...575L..15S |
| Reference | λ (degrees) |
|---|---|
| Narita et al. (2010) | 6.3 ± 4.7 |
Page generated on 2025/03/17 John Southworth (Keele University, UK)