Key parameters at a glance
- A radius of 10.80 Earth radii
- A mass of 81.60 Earth masses
- Surface gravity around 0.70 g
- An orbital period of 39.644 days
- Semi-major axis 0.2238 AU
- Equilibrium temperature 514 K (241 °C)
- Distance from Earth 2,473.79 light-years
- Earth Similarity Index 0.249
- Travel time at Voyager 1 speed 43,625,322 years
1 sibling around Kepler-725
Kepler-725 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-725 b this | Gas Giant | 10.80 | 81.60 | 39.644 | 514 | 2016 |
| Kepler-725 c | Sub-Neptune | 3.08 | 9.70 | 207.541 | 268 | 2025 |
Kepler-725 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1686of 1771
top 95.1%
This planet
10.80R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | Kepler-725 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 10.80 | 11.21 |
| Mass (M⊕) | 1.00 | 81.60 | 317.83 |
| Density (g/cm³) | 5.51 | 0.36 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.70 | 2.53 |
| Insolation (S⊕) | 1.00 | 12.10 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 164652841
Gaia DR2
Gaia DR2 2106775024555031936
Gaia DR3
Gaia DR3 2106775024555031936
System
Kepler-725
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 39.64 Earth days (10.9% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.2238 AU.
Transit Fingerprint
Depth
1.266 %
Duration
6.504 h
Impact parameter b
0.140
Rp / R★
0.111685
Transit midpoint (BJD)
2,455,039.5974
Photometric dip
Transit produces a flux drop of 12,660 ppm lasting ≈ 6.50 h.
Extended Orbital Architecture
Planet / star radius ratio
0.111685
Semi-major axis / stellar radius
54.700
Impact parameter (b)
0.140
Transit mid-time (BJD)
2,455,039.5974
Long. of periastron (ω)
-90.10°
Angular separation (arcsec)
0.29500
Eq. Temperature
514K
(241 °C)
Insolation (S⊕)
12.10
Earth = 1.00
Earth Similarity (ESI)
0.249
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.
Transit timing variations
Gravitational interactions from neighbours have been detected.
Discovery Paper
Primary reference
Morton et al. 2016Instrument
Kepler CCD Array
Publication
2016-05
Observation locale
Space
Discovery cohort
Planets confirmed in 2016 at Kepler (12 shown).
Host System: Kepler-725
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,395 K — cooler than the Sun (5,778 K)
Estimated Age
1.60 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.880 R☉
Stellar Mass
0.950 M☉
Metallicity [Fe/H]
0.14
Extended Stellar Properties
Surface gravity (log g)
4.540 dex
Stellar density
1.974 g/cm³
Rotation period
17.46 days
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.290 mas
Total Proper Motion
5.046 mas/yr
PM Right Ascension
-0.62 mas/yr
PM Declination
5.01 mas/yr
Galactic Cartesian (pc)
x = 0.171 · y = -0.688 · z = 0.705
Equatorial (J2000)
RA 283.97749° · Dec 44.81156°
Galactic ℓ, b
74.704° · 18.002°
Ecliptic λ, β
296.000° · 66.993°
HTM-20 index
471983937
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