Key parameters at a glance
- A radius of 1.75 Earth radii
- A mass of 3.71 Earth masses
- Surface gravity around 1.21 g
- An orbital period of 13.751 days
- Semi-major axis 0.1120 AU
- Equilibrium temperature 725 K (452 °C)
- Distance from Earth 2,345.60 light-years
- Earth Similarity Index 0.397
- Travel time at Voyager 1 speed 41,364,708 years
2 siblings around Kepler-301
Kepler-301 d shares its host star with 2 other confirmed planets. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-301 b | Super-Earth | 1.35 | 2.39 | 2.509 | 1,278 | 2014 |
| Kepler-301 c | Super-Earth | 1.35 | 2.39 | 5.419 | 989 | 2014 |
| Kepler-301 d this | Super-Earth | 1.75 | 3.71 | 13.751 | 725 | 2014 |
Kepler-301 d Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#326of 1176
top 27.6%
This planet
1.75R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-301 d | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.75 | 11.21 |
| Mass (M⊕) | 1.00 | 3.71 | 317.83 |
| Density (g/cm³) | 5.51 | 3.80 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.21 | 2.53 |
| Insolation (S⊕) | 1.00 | 68.93 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 48419097
Gaia DR2
Gaia DR2 2131867357368794624
Gaia DR3
Gaia DR3 2131867357368794624
System
Kepler-301
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 13.75 Earth days (3.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1120 AU.
Transit Fingerprint
Depth
0.035 %
Duration
3.958 h
Impact parameter b
0.270
Rp / R★
0.017230
Transit midpoint (BJD)
2,454,977.6123
Photometric dip
Transit produces a flux drop of 349 ppm lasting ≈ 3.96 h.
Extended Orbital Architecture
Planet / star radius ratio
0.017230
Semi-major axis / stellar radius
19.400
Impact parameter (b)
0.270
Transit mid-time (BJD)
2,454,977.6123
Angular separation (arcsec)
0.15600
Eq. Temperature
725K
(452 °C)
Insolation (S⊕)
68.93
Earth = 1.00
Earth Similarity (ESI)
0.397
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
Discovery Paper
Primary reference
Rowe et al. 2014Instrument
Kepler CCD Array
Publication
2014-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2014 at Kepler (12 shown).
Host System: Kepler-301
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,815 K — hotter than the Sun (5,778 K)
Estimated Age
1.45 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.900 R☉
Stellar Mass
1.022 M☉
Metallicity [Fe/H]
0.19
Extended Stellar Properties
Surface gravity (log g)
4.525 dex
Stellar density
1.220 g/cm³
Metallicity ratio
[M/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.362 mas
Total Proper Motion
5.836 mas/yr
PM Right Ascension
-1.34 mas/yr
PM Declination
-5.68 mas/yr
Galactic Cartesian (pc)
x = 0.158 · y = -0.634 · z = 0.757
Equatorial (J2000)
RA 283.98290° · Dec 49.23295°
Galactic ℓ, b
79.094° · 19.509°
Ecliptic λ, β
299.390° · 71.248°
HTM-20 index
1772825040
Similar Worlds
HD 28471 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.75 R⊕ · 142.4 ly
Kepler-1516 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.75 R⊕ · 4,432.3 ly
Kepler-939 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.75 R⊕ · 6,828.5 ly
Kepler-430 c
Super-Earth · G-type yellow (Sun-like)
Radius 1.75 R⊕ · 2,992.4 ly
Kepler-215 e
Super-Earth · G-type yellow (Sun-like)
Radius 1.75 R⊕ · 1,585.1 ly
K2-244 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.75 R⊕ · 694.4 ly