Key parameters at a glance
- A radius of 13.02 Earth radii
- An orbital period of 1.974 days
- Semi-major axis 0.0250 AU
- Equilibrium temperature 753 K (480 °C)
- Distance from Earth 2,094.09 light-years
- Earth Similarity Index 0.110
- Travel time at Voyager 1 speed 36,929,237 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-785 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#958of 1771
top 54.0%
This planet
13.02R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | Kepler-785 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.02 | 11.21 |
| Mass (M⊕) | 1.00 | — | 317.83 |
| Density (g/cm³) | 5.51 | — | 1.33 |
| Surface Gravity (g) | 1.00 | — | 2.53 |
| Insolation (S⊕) | 1.00 | 163.86 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 137402055
Gaia DR2
Gaia DR2 2052722689341030656
Gaia DR3
Gaia DR3 2052722689341030656
System
Kepler-785
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 1.97 Earth days (0.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0250 AU.
Transit Fingerprint
Depth
3.022 %
Duration
1.829 h
Impact parameter b
0.286
Rp / R★
0.167411
Transit midpoint (BJD)
2,455,011.6894
Photometric dip
Transit produces a flux drop of 30,222 ppm lasting ≈ 1.83 h.
Extended Orbital Architecture
Planet / star radius ratio
0.167411
Semi-major axis / stellar radius
9.357
Impact parameter (b)
0.286
Transit mid-time (BJD)
2,455,011.6894
Angular separation (arcsec)
0.03890
Eq. Temperature
753K
(480 °C)
Insolation (S⊕)
163.86
Earth = 1.00
Earth Similarity (ESI)
0.110
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water. Close-orbiting tidally-locked around a cool host.
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-785
Spectral Class
K-type orange
Effective Temperature
4,739 K — cooler than the Sun (5,778 K)
Estimated Age
2.82 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.710 R☉
Stellar Mass
0.770 M☉
Metallicity [Fe/H]
-0.02
Extended Stellar Properties
Surface gravity (log g)
4.620 dex
Stellar density
3.979 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.530 mas
Total Proper Motion
14.472 mas/yr
PM Right Ascension
-1.83 mas/yr
PM Declination
-14.36 mas/yr
Galactic Cartesian (pc)
x = 0.293 · y = -0.722 · z = 0.627
Equatorial (J2000)
RA 292.06831° · Dec 38.84220°
Galactic ℓ, b
71.589° · 10.082°
Ecliptic λ, β
305.331° · 59.604°
HTM-20 index
2070241971
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