Key parameters at a glance
- A radius of 3.09 Earth radii
- A mass of 9.75 Earth masses
- Surface gravity around 1.02 g
- An orbital period of 22.184 days
- Semi-major axis 0.1418 AU
- Equilibrium temperature 546 K (273 °C)
- Distance from Earth 1,843.46 light-years
- Earth Similarity Index 0.422
- Travel time at Voyager 1 speed 32,509,354 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-563 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#443of 1978
top 22.3%
This planet
3.09R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-563 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.09 | 11.21 |
| Mass (M⊕) | 1.00 | 9.75 | 317.83 |
| Density (g/cm³) | 5.51 | 1.82 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.02 | 2.53 |
| Insolation (S⊕) | 1.00 | 18.74 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 63289401
Gaia DR2
Gaia DR2 2128258141734121600
Gaia DR3
Gaia DR3 2128258141734121600
System
Kepler-563
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 22.18 Earth days (6.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1418 AU.
Transit Fingerprint
Depth
0.159 %
Duration
3.056 h
Impact parameter b
0.032
Rp / R★
0.037242
Transit midpoint (BJD)
2,455,007.5975
Photometric dip
Transit produces a flux drop of 1,593 ppm lasting ≈ 3.06 h.
Extended Orbital Architecture
Planet / star radius ratio
0.037242
Semi-major axis / stellar radius
57.720
Impact parameter (b)
0.032
Transit mid-time (BJD)
2,455,007.5975
Angular separation (arcsec)
0.25100
Eq. Temperature
546K
(273 °C)
Insolation (S⊕)
18.74
Earth = 1.00
Earth Similarity (ESI)
0.422
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-563
Spectral Class
K-type orange
Effective Temperature
5,066 K — cooler than the Sun (5,778 K)
Estimated Age
5.37 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.770 R☉
Stellar Mass
0.800 M☉
Metallicity [Fe/H]
-0.08
Extended Stellar Properties
Surface gravity (log g)
4.580 dex
Stellar density
7.391 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.741 mas
Total Proper Motion
11.625 mas/yr
PM Right Ascension
-11.62 mas/yr
PM Declination
-0.38 mas/yr
Galactic Cartesian (pc)
x = 0.264 · y = -0.639 · z = 0.723
Equatorial (J2000)
RA 292.44618° · Dec 46.28975°
Galactic ℓ, b
78.532° · 13.131°
Ecliptic λ, β
311.476° · 66.526°
HTM-20 index
-963049266
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