Key parameters at a glance
- A radius of 17.71 Earth radii
- A mass of 158.92 Earth masses
- Surface gravity around 0.51 g
- An orbital period of 3.950 days
- Semi-major axis 0.0550 AU
- Equilibrium temperature 1,604 K (1331 °C)
- Distance from Earth 688.88 light-years
- Earth Similarity Index 0.052
- Travel time at Voyager 1 speed 12,148,351 years
WASP-94 A b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#85of 1771
top 4.7%
This planet
17.71R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | WASP-94 A b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 17.71 | 11.21 |
| Mass (M⊕) | 1.00 | 158.92 | 317.83 |
| Density (g/cm³) | 5.51 | 0.12 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.51 | 2.53 |
| Insolation (S⊕) | 1.00 | 1,009.38 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 158.915 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 92352620
Gaia DR2
Gaia DR2 6780546169633475456
Gaia DR3
Gaia DR3 6780546169634170496
System
WASP-94
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 3.95 Earth days (1.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0550 AU.
Transit Fingerprint
Depth
1.200 %
Duration
4.488 h
Impact parameter b
0.170
Rp / R★
0.109400
Transit midpoint (BJD)
2,458,300.6476
Photometric dip
Transit produces a flux drop of 12,000 ppm lasting ≈ 4.49 h.
Extended Orbital Architecture
Planet / star radius ratio
0.109400
Semi-major axis / stellar radius
8.440
Impact parameter (b)
0.170
RV semi-amplitude (K)
45.400 m/s
Transit mid-time (BJD)
2,458,300.6476
Sky-projected obliquity (λ)
151.00°
Angular separation (arcsec)
0.26000
Eq. Temperature
1,604K
(1331 °C)
Insolation (S⊕)
1,009.38
Earth = 1.00
Earth Similarity (ESI)
0.052
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
Neveu Vanmalle et al. 2014Instrument
iKon-L CCD Camera
Publication
2014-12
Observation locale
Ground
Discovery cohort
Planets confirmed in 2014 at SuperWASP (12 shown).
Host System: WASP-94 A
Spectral Class
F-type yellow-white
Effective Temperature
6,170 K — hotter than the Sun (5,778 K)
Estimated Age
2.70 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.480 R☉
Stellar Mass
1.670 M☉
Metallicity [Fe/H]
0.26
Extended Stellar Properties
Surface gravity (log g)
4.270 dex
Stellar density
0.730 g/cm³
Systemic radial velocity
-8.82 km/s
Rotational v·sin i
4.20 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
4.707 mas
Total Proper Motion
52.115 mas/yr
PM Right Ascension
26.38 mas/yr
PM Declination
-44.95 mas/yr
Galactic Cartesian (pc)
x = 0.573 · y = -0.598 · z = -0.561
Equatorial (J2000)
RA 313.78324° · Dec -34.13575°
Galactic ℓ, b
9.655° · -39.379°
Ecliptic λ, β
306.585° · -16.090°
HTM-20 index
732342747
Observation Record
Transmission spectra
4
Emission spectra
3
Archive notes
2
Similar Worlds
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