Key parameters at a glance
- A radius of 1.57 Earth radii
- A mass of 3.09 Earth masses
- Surface gravity around 1.25 g
- An orbital period of 20.618 days
- Semi-major axis 0.1228 AU
- Equilibrium temperature 359 K (86 °C)
- Distance from Earth 1,045.62 light-years
- Earth Similarity Index 0.769
- Travel time at Voyager 1 speed 18,439,455 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around Kepler-2000
Kepler-2000 c 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-2000 b | Sub-Neptune | 2.73 | 7.90 | 6.383 | 530 | 2023 |
| Kepler-2000 c this | Super-Earth | 1.57 | 3.09 | 20.618 | 359 | 2023 |
Kepler-2000 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#618of 1176
top 52.5%
This planet
1.57R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-2000 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.57 | 11.21 |
| Mass (M⊕) | 1.00 | 3.09 | 317.83 |
| Density (g/cm³) | 5.51 | 4.39 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.25 | 2.53 |
| Insolation (S⊕) | 1.00 | 3.92 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 350814495
Gaia DR2
Gaia DR2 2132144056342471168
Gaia DR3
Gaia DR3 2132144056342471168
System
Kepler-2000
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 20.62 Earth days (5.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1228 AU.
Transit Fingerprint
Depth
0.077 %
Duration
3.267 h
Impact parameter b
0.155
Rp / R★
0.024893
Transit midpoint (BJD)
2,454,978.5123
Photometric dip
Transit produces a flux drop of 770 ppm lasting ≈ 3.27 h.
Extended Orbital Architecture
Planet / star radius ratio
0.024893
Semi-major axis / stellar radius
48.850
Impact parameter (b)
0.155
Transit mid-time (BJD)
2,454,978.5123
Angular separation (arcsec)
0.38300
Eq. Temperature
359K
(86 °C)
Insolation (S⊕)
3.92
Earth = 1.00
Earth Similarity (ESI)
0.769
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — liquid water is physically possible with adequate atmospheric pressure. Close-orbiting tidally-locked around a cool host.
Discovery Paper
Primary reference
Valizadegan et al. 2023Instrument
Kepler CCD Array
Publication
2023-05
Observation locale
Space
Discovery cohort
Planets confirmed in 2023 at Kepler (12 shown).
Host System: Kepler-2000
Spectral Class
K-type orange
Effective Temperature
3,757 K — cooler than the Sun (5,778 K)
Estimated Age
6.00 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.576 R☉
Stellar Mass
0.581 M☉
Metallicity [Fe/H]
0.48
Extended Stellar Properties
Surface gravity (log g)
4.681 dex
Stellar density
5.188 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
3.091 mas
Total Proper Motion
39.192 mas/yr
PM Right Ascension
-7.05 mas/yr
PM Declination
-38.55 mas/yr
Galactic Cartesian (pc)
x = 0.173 · y = -0.620 · z = 0.766
Equatorial (J2000)
RA 285.57430° · Dec 49.96212°
Galactic ℓ, b
80.188° · 18.783°
Ecliptic λ, β
303.191° · 71.611°
HTM-20 index
-503303062
Similar Worlds
Kepler-220 c
Super-Earth · K-type orange
Radius 1.57 R⊕ · 558.1 ly
K2-136 d
Super-Earth · K-type orange
Radius 1.57 R⊕ · 193.2 ly
K2-383 b
Super-Earth · K-type orange
Radius 1.56 R⊕ · 664.7 ly
K2-191 b
Super-Earth · K-type orange
Radius 1.58 R⊕ · 936.7 ly
TOI-5736 b
Super-Earth · K-type orange
Radius 1.56 R⊕ · 301.2 ly
K2-68 b
Super-Earth · K-type orange
Radius 1.58 R⊕ · 550.1 ly