Key parameters at a glance
- A radius of 10.18 Earth radii
- A mass of 73.80 Earth masses
- Surface gravity around 0.71 g
- An orbital period of 15.376 days
- Semi-major axis 0.1121 AU
- Equilibrium temperature 600 K (327 °C)
- Distance from Earth 3,755.72 light-years
- Earth Similarity Index 0.223
- Travel time at Voyager 1 speed 66,232,100 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-693 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1752of 1771
top 98.9%
This planet
10.18R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | Kepler-693 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 10.18 | 11.21 |
| Mass (M⊕) | 1.00 | 73.80 | 317.83 |
| Density (g/cm³) | 5.51 | 0.38 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.71 | 2.53 |
| Insolation (S⊕) | 1.00 | 31.64 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 237159318
Gaia DR2
Gaia DR2 2103572731299093376
Gaia DR3
Gaia DR3 2103572731299093376
System
Kepler-693
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 15.38 Earth days (4.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1121 AU.
Transit Fingerprint
Depth
1.534 %
Duration
3.267 h
Impact parameter b
0.692
Rp / R★
0.128578
Transit midpoint (BJD)
2,455,006.6133
Photometric dip
Transit produces a flux drop of 15,337 ppm lasting ≈ 3.27 h.
Extended Orbital Architecture
Planet / star radius ratio
0.128578
Semi-major axis / stellar radius
31.240
Impact parameter (b)
0.692
Transit mid-time (BJD)
2,455,006.6133
Angular separation (arcsec)
0.09740
Eq. Temperature
600K
(327 °C)
Insolation (S⊕)
31.64
Earth = 1.00
Earth Similarity (ESI)
0.223
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.
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-693
Spectral Class
K-type orange
Effective Temperature
4,881 K — cooler than the Sun (5,778 K)
Estimated Age
4.47 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.720 R☉
Stellar Mass
0.760 M☉
Metallicity [Fe/H]
-0.10
Extended Stellar Properties
Surface gravity (log g)
4.610 dex
Stellar density
2.439 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 17 bands
Astrometric Data
Parallax
0.841 mas
Total Proper Motion
5.342 mas/yr
PM Right Ascension
-4.52 mas/yr
PM Declination
-2.84 mas/yr
Galactic Cartesian (pc)
x = 0.175 · y = -0.742 · z = 0.648
Equatorial (J2000)
RA 283.25353° · Dec 40.35822°
Galactic ℓ, b
70.148° · 16.895°
Ecliptic λ, β
292.440° · 62.769°
HTM-20 index
-184137793
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