Key parameters at a glance
- A radius of 12.52 Earth radii
- A mass of 617.23 Earth masses
- Surface gravity around 3.94 g
- An orbital period of 15.169 days
- Semi-major axis 0.1207 AU
- Equilibrium temperature 974 K (701 °C)
- Distance from Earth 998.24 light-years
- Earth Similarity Index 0.166
- Travel time at Voyager 1 speed 17,604,011 years
TIC 237913194 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1232of 1771
top 69.5%
This planet
12.52R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TIC 237913194 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 12.52 | 11.21 |
| Mass (M⊕) | 1.00 | 617.23 | 317.83 |
| Density (g/cm³) | 5.51 | 1.85 | 1.33 |
| Surface Gravity (g) | 1.00 | 3.94 | 2.53 |
| Insolation (S⊕) | 1.00 | 83.39 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 617.226 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 237913194
Gaia DR2
Gaia DR2 4715813347286590080
Gaia DR3
Gaia DR3 4715813347286590080
System
TIC 237913194
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 15.17 Earth days (4.2% of a terrestrial year) on a highly eccentric trajectory at a mean orbital distance of 0.1207 AU.
Transit Fingerprint
Depth
0.782 %
Duration
2.063 h
Impact parameter b
0.900
Rp / R★
0.103100
Transit midpoint (BJD)
2,458,319.1506
Photometric dip
Transit produces a flux drop of 7,819 ppm lasting ≈ 2.06 h.
Extended Orbital Architecture
Planet / star radius ratio
0.103100
Semi-major axis / stellar radius
23.850
Impact parameter (b)
0.900
RV semi-amplitude (K)
191.300 m/s
Transit mid-time (BJD)
2,458,319.1506
Long. of periastron (ω)
24.10°
Angular separation (arcsec)
0.39400
Eq. Temperature
974K
(701 °C)
Insolation (S⊕)
83.39
Earth = 1.00
Earth Similarity (ESI)
0.166
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
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
Schlecker et al. 2020Instrument
TESS CCD Array
Publication
2020-12
Observation locale
Space
Discovery cohort
Planets confirmed in 2020 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TIC 237913194
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,788 K — hotter than the Sun (5,778 K)
Estimated Age
5.70 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.088 R☉
Stellar Mass
1.026 M☉
Metallicity [Fe/H]
0.14
Extended Stellar Properties
Surface gravity (log g)
4.376 dex
Stellar density
1.076 g/cm³
Systemic radial velocity
30.03 km/s
Rotational v·sin i
2.18 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
3.239 mas
Total Proper Motion
20.896 mas/yr
PM Right Ascension
18.05 mas/yr
PM Declination
10.52 mas/yr
Galactic Cartesian (pc)
x = 0.452 · y = 0.187 · z = -0.872
Equatorial (J2000)
RA 22.44581° · Dec -60.73991°
Galactic ℓ, b
294.613° · -55.765°
Ecliptic λ, β
338.732° · -61.004°
HTM-20 index
-346268724
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