Key parameters at a glance
- A radius of 12.89 Earth radii
- A mass of 136.67 Earth masses
- Surface gravity around 0.82 g
- An orbital period of 4.614 days
- Semi-major axis 0.0518 AU
- Equilibrium temperature 1,003 K (730 °C)
- Distance from Earth 617.96 light-years
- Earth Similarity Index 0.125
- Travel time at Voyager 1 speed 10,897,804 years
WASP-67 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1049of 1771
top 59.2%
This planet
12.89R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | WASP-67 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 12.89 | 11.21 |
| Mass (M⊕) | 1.00 | 136.67 | 317.83 |
| Density (g/cm³) | 5.51 | 0.39 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.82 | 2.53 |
| Insolation (S⊕) | 1.00 | 188.11 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 136.667 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 68952448
Gaia DR2
Gaia DR2 6868476691490044672
Gaia DR3
Gaia DR3 6868476691490044672
System
WASP-67
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 4.61 Earth days (1.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0518 AU.
Transit Fingerprint
Depth
1.800 %
Duration
1.896 h
Rp / R★
0.137900
Transit midpoint (BJD)
2,456,618.0537
Photometric dip
Transit produces a flux drop of 18,000 ppm lasting ≈ 1.90 h.
Extended Orbital Architecture
Planet / star radius ratio
0.137900
Semi-major axis / stellar radius
12.830
RV semi-amplitude (K)
56.000 m/s
Transit mid-time (BJD)
2,456,618.0537
Angular separation (arcsec)
0.27300
Eq. Temperature
1,003K
(730 °C)
Insolation (S⊕)
188.11
Earth = 1.00
Earth Similarity (ESI)
0.125
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.
Discovery Paper
Primary reference
Hellier et al. 2012Instrument
iKon-L CCD Camera
Publication
2012-10
Observation locale
Ground
Discovery cohort
Planets confirmed in 2012 at SuperWASP (12 shown).
Host System: WASP-67
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,200 K — cooler than the Sun (5,778 K)
Estimated Age
12.60 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.880 R☉
Stellar Mass
0.910 M☉
Metallicity [Fe/H]
-0.07
Extended Stellar Properties
Surface gravity (log g)
4.350 dex
Stellar density
1.880 g/cm³
Systemic radial velocity
-0.56 km/s
Rotational v·sin i
2.10 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
5.250 mas
Total Proper Motion
32.949 mas/yr
PM Right Ascension
1.76 mas/yr
PM Declination
-32.90 mas/yr
Galactic Cartesian (pc)
x = 0.408 · y = -0.847 · z = -0.341
Equatorial (J2000)
RA 295.74385° · Dec -19.94973°
Galactic ℓ, b
20.138° · -20.006°
Ecliptic λ, β
294.100° · 1.361°
HTM-20 index
1686761274
Observation Record
RV measurements
1
Transmission spectra
4
Emission spectra
4
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