Key parameters at a glance
- A radius of 10.09 Earth radii
- A mass of 508.53 Earth masses
- Surface gravity around 5.00 g
- An orbital period of 2.994 days
- Equilibrium temperature 1,272 K (999 °C)
- Distance from Earth 1,748.35 light-years
- Earth Similarity Index 0.137
- Travel time at Voyager 1 speed 30,832,083 years
- Almost certainly tidally locked to its host star given the close orbit
TOI-2337 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1767of 1771
top 99.7%
This planet
10.09R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-2337 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 10.09 | 11.21 |
| Mass (M⊕) | 1.00 | 508.53 | 317.83 |
| Density (g/cm³) | 5.51 | 2.72 | 1.33 |
| Surface Gravity (g) | 1.00 | 5.00 | 2.53 |
| Insolation (S⊕) | 1.00 | 619.58 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 508.525 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 230001847
Gaia DR2
Gaia DR2 2239684947894267392
Gaia DR3
Gaia DR3 2239684947894267392
System
TOI-2337
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 2.99 Earth days (0.8% of a terrestrial year) on a nearly circular orbit.
Transit Fingerprint
Depth
0.112 %
Duration
6.917 h
Impact parameter b
0.520
Transit midpoint (BJD)
2,458,793.8280
Photometric dip
Transit produces a flux drop of 1,121 ppm lasting ≈ 6.92 h.
Extended Orbital Architecture
Impact parameter (b)
0.520
RV semi-amplitude (K)
192.200 m/s
Transit mid-time (BJD)
2,458,793.8280
Long. of periastron (ω)
-0.34°
Eq. Temperature
1,272K
(999 °C)
Insolation (S⊕)
619.58
Earth = 1.00
Earth Similarity (ESI)
0.137
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched. Close-orbiting tidally-locked around a cool host.
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
Grunblatt et al. 2022Instrument
TESS CCD Array
Publication
2022-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2022 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-2337
Spectral Class
K-type orange
Effective Temperature
4,780 K — cooler than the Sun (5,778 K)
Estimated Age
4.90 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
3.220 R☉
Stellar Mass
1.325 M☉
Metallicity [Fe/H]
0.39
Extended Stellar Properties
Surface gravity (log g)
3.500 dex
Stellar density
0.055 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
1.837 mas
Total Proper Motion
14.268 mas/yr
PM Right Ascension
-10.34 mas/yr
PM Declination
9.84 mas/yr
Galactic Cartesian (pc)
x = 0.172 · y = -0.456 · z = 0.873
Equatorial (J2000)
RA 290.61989° · Dec 60.85390°
Galactic ℓ, b
92.062° · 19.860°
Ecliptic λ, β
337.563° · 79.306°
HTM-20 index
-366611771
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