Key parameters at a glance
- A radius of 12.89 Earth radii
- A mass of 317.83 Earth masses
- Surface gravity around 1.91 g
- An orbital period of 5.368 days
- Semi-major axis 0.0663 AU
- Equilibrium temperature 1,500 K (1227 °C)
- Distance from Earth 1,768.58 light-years
- Earth Similarity Index 0.090
- Travel time at Voyager 1 speed 31,188,980 years
WASP-190 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-190 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 12.89 | 11.21 |
| Mass (M⊕) | 1.00 | 317.83 | 317.83 |
| Density (g/cm³) | 5.51 | 0.82 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.91 | 2.53 |
| Insolation (S⊕) | 1.00 | 747.13 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 317.830 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 116156517
Gaia DR2
Gaia DR2 4994237247949280000
Gaia DR3
Gaia DR3 4994237247949280000
System
WASP-190
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 5.37 Earth days (1.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0663 AU.
Transit Fingerprint
Depth
0.620 %
Duration
4.464 h
Impact parameter b
0.450
Rp / R★
0.078700
Transit midpoint (BJD)
2,457,799.1256
Photometric dip
Transit produces a flux drop of 6,200 ppm lasting ≈ 4.46 h.
Extended Orbital Architecture
Planet / star radius ratio
0.078700
Semi-major axis / stellar radius
9.050
Impact parameter (b)
0.450
RV semi-amplitude (K)
99.000 m/s
Transit mid-time (BJD)
2,457,799.1256
Sky-projected obliquity (λ)
21.00°
Angular separation (arcsec)
0.12200
Eq. Temperature
1,500K
(1227 °C)
Insolation (S⊕)
747.13
Earth = 1.00
Earth Similarity (ESI)
0.090
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
Temple et al. 2019Instrument
iKon-L CCD Camera
Publication
2019-04
Observation locale
Ground
Discovery cohort
Planets confirmed in 2019 at WASP-South (9 shown).
Host System: WASP-190
Spectral Class
F-type yellow-white
Effective Temperature
6,400 K — hotter than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
1.600 R☉
Stellar Mass
1.350 M☉
Metallicity [Fe/H]
-0.02
Extended Stellar Properties
Surface gravity (log g)
4.170 dex
Stellar density
0.480 g/cm³
Systemic radial velocity
0.82 km/s
Rotational v·sin i
13.30 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
1.816 mas
Total Proper Motion
39.307 mas/yr
PM Right Ascension
38.23 mas/yr
PM Declination
-9.14 mas/yr
Galactic Cartesian (pc)
x = 0.753 · y = 0.102 · z = -0.650
Equatorial (J2000)
RA 7.70953° · Dec -40.57346°
Galactic ℓ, b
319.182° · -75.898°
Ecliptic λ, β
347.615° · -39.590°
HTM-20 index
1083962363
Similar Worlds
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HD 67087 c
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