Key parameters at a glance
- A radius of 1.90 Earth radii
- A mass of 4.27 Earth masses
- Surface gravity around 1.18 g
- An orbital period of 5.379 days
- Semi-major axis 0.0549 AU
- Equilibrium temperature 833 K (560 °C)
- Distance from Earth 1,352.98 light-years
- Earth Similarity Index 0.335
- Travel time at Voyager 1 speed 23,859,741 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-601 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#125of 1176
top 10.5%
This planet
1.90R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-601 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.90 | 11.21 |
| Mass (M⊕) | 1.00 | 4.27 | 317.83 |
| Density (g/cm³) | 5.51 | 3.42 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.18 | 2.53 |
| Insolation (S⊕) | 1.00 | 110.62 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 351801933
Gaia DR2
Gaia DR2 2104705193915993216
Gaia DR3
Gaia DR3 2104705193915993216
System
Kepler-601
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 5.38 Earth days (1.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0549 AU.
Transit Fingerprint
Depth
0.048 %
Duration
2.715 h
Impact parameter b
0.758
Rp / R★
0.022313
Transit midpoint (BJD)
2,455,002.6152
Photometric dip
Transit produces a flux drop of 483 ppm lasting ≈ 2.72 h.
Extended Orbital Architecture
Planet / star radius ratio
0.022313
Semi-major axis / stellar radius
11.700
Impact parameter (b)
0.758
Transit mid-time (BJD)
2,455,002.6152
Angular separation (arcsec)
0.13200
Eq. Temperature
833K
(560 °C)
Insolation (S⊕)
110.62
Earth = 1.00
Earth Similarity (ESI)
0.335
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-601
Spectral Class
K-type orange
Effective Temperature
5,160 K — cooler than the Sun (5,778 K)
Estimated Age
4.07 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.790 R☉
Stellar Mass
0.850 M☉
Metallicity [Fe/H]
-0.02
Extended Stellar Properties
Surface gravity (log g)
4.570 dex
Stellar density
1.740 g/cm³
Systemic radial velocity
-28.04 km/s
Rotational v·sin i
0.90 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
2.382 mas
Total Proper Motion
15.016 mas/yr
PM Right Ascension
11.58 mas/yr
PM Declination
-9.56 mas/yr
Galactic Cartesian (pc)
x = 0.154 · y = -0.725 · z = 0.671
Equatorial (J2000)
RA 282.00469° · Dec 42.17647°
Galactic ℓ, b
71.578° · 18.421°
Ecliptic λ, β
291.167° · 64.736°
HTM-20 index
-1866413112
Similar Worlds
K2-155 d
Super-Earth · K-type orange
Radius 1.90 R⊕ · 237.4 ly
Kepler-158 c
Super-Earth · K-type orange
Radius 1.90 R⊕ · 1,028.0 ly
Kepler-196 b
Super-Earth · K-type orange
Radius 1.90 R⊕ · 1,472.0 ly
Kepler-1669 c
Super-Earth · K-type orange
Radius 1.90 R⊕ · 1,772.5 ly
K2-47 b
Super-Earth · K-type orange
Radius 1.89 R⊕ · 1,141.2 ly
TOI-5789 d
Super-Earth · K-type orange
Radius 1.91 R⊕ · 66.7 ly