Key parameters at a glance
- A radius of 12.25 Earth radii
- A mass of 400.45 Earth masses
- Surface gravity around 2.67 g
- An orbital period of 1.432 days
- Semi-major axis 0.0229 AU
- Equilibrium temperature 1,342 K (1069 °C)
- Distance from Earth 1,847.54 light-years
- Earth Similarity Index 0.110
- Travel time at Voyager 1 speed 32,581,366 years
- Almost certainly tidally locked to its host star given the close orbit
OGLE-TR-113 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1396of 1771
top 78.8%
This planet
12.25R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | OGLE-TR-113 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 12.25 | 11.21 |
| Mass (M⊕) | 1.00 | 400.45 | 317.83 |
| Density (g/cm³) | 5.51 | 1.20 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.67 | 2.53 |
| Insolation (S⊕) | 1.00 | 528.41 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 400.449 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 915110182
Gaia DR2
Gaia DR2 5242077854771196544
Gaia DR3
Gaia DR3 5242077854771196544
System
OGLE-TR-113
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 1.43 Earth days (0.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0229 AU.
Transit Fingerprint
Depth
2.103 %
Duration
2.072 h
Impact parameter b
0.400
Rp / R★
0.144360
Transit midpoint (BJD)
2,454,819.7385
Photometric dip
Transit produces a flux drop of 21,030 ppm lasting ≈ 2.07 h.
Extended Orbital Architecture
Planet / star radius ratio
0.144360
Semi-major axis / stellar radius
6.440
Impact parameter (b)
0.400
RV semi-amplitude (K)
294.000 m/s
Transit mid-time (BJD)
2,454,819.7385
Angular separation (arcsec)
0.04040
Eq. Temperature
1,342K
(1069 °C)
Insolation (S⊕)
528.41
Earth = 1.00
Earth Similarity (ESI)
0.110
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
Bouchy et al. 2004Instrument
OGLE CCD Array
Publication
2004-07
Observation locale
Ground
Discovery cohort
Planets confirmed in 2004 at OGLE (4 shown).
Host System: OGLE-TR-113
Spectral Class
K-type orange
Effective Temperature
4,790 K — cooler than the Sun (5,778 K)
Estimated Age
13.20 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.774 R☉
Stellar Mass
0.779 M☉
Metallicity [Fe/H]
0.09
Extended Stellar Properties
Surface gravity (log g)
4.552 dex
Stellar density
2.365 g/cm³
Systemic radial velocity
-7.94 km/s
Rotational v·sin i
9.00 km/s
Astrometric Data
Parallax
1.738 mas
Total Proper Motion
17.912 mas/yr
PM Right Ascension
-14.94 mas/yr
PM Declination
9.88 mas/yr
Galactic Cartesian (pc)
x = -0.457 · y = 0.139 · z = -0.878
Equatorial (J2000)
RA 163.10104° · Dec -61.44686°
Galactic ℓ, b
289.201° · -1.790°
Ecliptic λ, β
205.881° · -59.447°
HTM-20 index
-1714500069
Observation Record
Photometric series
6
RV measurements
3
Archive notes
1
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