Key parameters at a glance
- A radius of 14.98 Earth radii
- A mass of 607.03 Earth masses
- Surface gravity around 2.71 g
- An orbital period of 1.306 days
- Semi-major axis 0.0228 AU
- Equilibrium temperature 1,638 K (1365 °C)
- Distance from Earth 754.52 light-years
- Earth Similarity Index 0.080
- Travel time at Voyager 1 speed 13,305,951 years
TrES-3 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#233of 1771
top 13.1%
This planet
14.98R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TrES-3 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 14.98 | 11.21 |
| Mass (M⊕) | 1.00 | 607.03 | 317.83 |
| Density (g/cm³) | 5.51 | 0.99 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.71 | 2.53 |
| Insolation (S⊕) | 1.00 | 1,025.50 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 607.030 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 116264089
Gaia DR2
Gaia DR2 4609131509318715136
Gaia DR3
Gaia DR3 4609131509318715136
System
TrES-3
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 1.31 Earth days (0.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0228 AU.
Transit Fingerprint
Depth
2.739 %
Duration
1.418 h
Impact parameter b
0.840
Rp / R★
0.165500
Transit midpoint (BJD)
2,454,185.9104
Photometric dip
Transit produces a flux drop of 27,390 ppm lasting ≈ 1.42 h.
Extended Orbital Architecture
Planet / star radius ratio
0.165500
Semi-major axis / stellar radius
5.926
Impact parameter (b)
0.840
RV semi-amplitude (K)
369.000 m/s
Transit mid-time (BJD)
2,454,185.9104
Long. of periastron (ω)
270.50°
Angular separation (arcsec)
0.09860
Eq. Temperature
1,638K
(1365 °C)
Insolation (S⊕)
1,025.50
Earth = 1.00
Earth Similarity (ESI)
0.080
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Radial velocity
Stellar wobble has been measured spectroscopically.
Transit timing variations
Gravitational interactions from neighbours have been detected.
Discovery Paper
Primary reference
O Donovan et al. 2007Instrument
2K CCD Sensor
Publication
2007-07
Observation locale
Ground
Host System: TrES-3
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,650 K — cooler than the Sun (5,778 K)
Estimated Age
0.90 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.829 R☉
Stellar Mass
0.928 M☉
Metallicity [Fe/H]
-0.19
Extended Stellar Properties
Surface gravity (log g)
4.400 dex
Stellar density
2.304 g/cm³
Systemic radial velocity
10.84 km/s
Rotational v·sin i
1.50 km/s
Activity index (log R'HK)
-4.540
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 12 bands
Astrometric Data
Parallax
4.294 mas
Total Proper Motion
42.583 mas/yr
PM Right Ascension
-24.53 mas/yr
PM Declination
34.81 mas/yr
Galactic Cartesian (pc)
x = -0.027 · y = -0.792 · z = 0.609
Equatorial (J2000)
RA 268.02911° · Dec 37.54633°
Galactic ℓ, b
63.340° · 27.290°
Ecliptic λ, β
266.776° · 60.964°
HTM-20 index
1543705633
Observation Record
Photometric series
64
RV measurements
2
Transmission spectra
3
Emission spectra
9
Archive notes
2
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