Key parameters at a glance
- A radius of 10.76 Earth radii
- A mass of 835.89 Earth masses
- Surface gravity around 7.22 g
- An orbital period of 2.719 days
- Semi-major axis 0.0394 AU
- Equilibrium temperature 1,388 K (1115 °C)
- Distance from Earth 900.17 light-years
- Earth Similarity Index 0.122
- Travel time at Voyager 1 speed 15,874,515 years
WASP-32 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1694of 1771
top 95.6%
This planet
10.76R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | WASP-32 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 10.76 | 11.21 |
| Mass (M⊕) | 1.00 | 835.89 | 317.83 |
| Density (g/cm³) | 5.51 | 3.24 | 1.33 |
| Surface Gravity (g) | 1.00 | 7.22 | 2.53 |
| Insolation (S⊕) | 1.00 | 616.33 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 835.893 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 427332229
Gaia DR2
Gaia DR2 2546413408888429696
Gaia DR3
Gaia DR3 2546413408888429696
System
WASP-32
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 2.72 Earth days (0.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0394 AU.
Transit Fingerprint
Depth
1.100 %
Duration
2.424 h
Rp / R★
0.109100
Transit midpoint (BJD)
2,456,523.9799
Photometric dip
Transit produces a flux drop of 11,000 ppm lasting ≈ 2.42 h.
Extended Orbital Architecture
Planet / star radius ratio
0.109100
Semi-major axis / stellar radius
7.720
RV semi-amplitude (K)
478.000 m/s
Transit mid-time (BJD)
2,456,523.9799
Long. of periastron (ω)
130.00°
Sky-projected obliquity (λ)
-2.00°
True obliquity (ψ)
2.00°
Angular separation (arcsec)
0.14300
Eq. Temperature
1,388K
(1115 °C)
Insolation (S⊕)
616.33
Earth = 1.00
Earth Similarity (ESI)
0.122
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
Maxted et al. 2010Instrument
iKon-L CCD Camera
Publication
2010-12
Observation locale
Ground
Discovery cohort
Planets confirmed in 2010 at SuperWASP (12 shown).
Host System: WASP-32
Spectral Class
F-type yellow-white
Effective Temperature
6,140 K — hotter than the Sun (5,778 K)
Estimated Age
2.22 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.950 R☉
Stellar Mass
0.720 M☉
Metallicity [Fe/H]
-0.13
Extended Stellar Properties
Surface gravity (log g)
4.400 dex
Stellar density
1.180 g/cm³
Systemic radial velocity
18.28 km/s
Rotational v·sin i
3.90 km/s
Rotation period
11.60 days
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
3.595 mas
Total Proper Motion
16.697 mas/yr
PM Right Ascension
1.90 mas/yr
PM Declination
16.59 mas/yr
Galactic Cartesian (pc)
x = 0.997 · y = 0.069 · z = 0.021
Equatorial (J2000)
RA 3.96171° · Dec 1.20051°
Galactic ℓ, b
104.685° · -60.404°
Ecliptic λ, β
4.108° · -0.473°
HTM-20 index
2079954741
Observation Record
RV measurements
1
Transmission spectra
1
Emission spectra
2
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