Key parameters at a glance
- A radius of 1.64 Earth radii
- A mass of 3.33 Earth masses
- Surface gravity around 1.24 g
- An orbital period of 6.767 days
- Semi-major axis 0.0670 AU
- Equilibrium temperature 845 K (572 °C)
- Distance from Earth 2,534.43 light-years
- Earth Similarity Index 0.347
- Travel time at Voyager 1 speed 44,694,632 years
2 siblings around Kepler-46
Kepler-46 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-46 d this | Super-Earth | 1.64 | 3.33 | 6.767 | 845 | 2014 |
| Kepler-46 b | Neptune-like | 9.06 | 1,907.00 | 33.601 | 543 | 2012 |
| Kepler-46 c | Gas Giant | 13.50 | 119.50 | 57.011 | 455 | 2012 |
Kepler-46 d Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#495of 1176
top 42.0%
This planet
1.64R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-46 d | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.64 | 11.21 |
| Mass (M⊕) | 1.00 | 3.33 | 317.83 |
| Density (g/cm³) | 5.51 | 4.15 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.24 | 2.53 |
| Insolation (S⊕) | 1.00 | 92.35 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 158992508
Gaia DR2
Gaia DR2 2102700131386216576
Gaia DR3
Gaia DR3 2102700131386216576
System
Kepler-46
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 6.77 Earth days (1.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0670 AU.
Transit Fingerprint
Depth
0.045 %
Duration
2.598 h
Impact parameter b
0.240
Rp / R★
0.019382
Transit midpoint (BJD)
2,454,971.0589
Photometric dip
Transit produces a flux drop of 451 ppm lasting ≈ 2.60 h.
Extended Orbital Architecture
Planet / star radius ratio
0.019382
Semi-major axis / stellar radius
15.800
Impact parameter (b)
0.240
Transit mid-time (BJD)
2,454,971.0589
Angular separation (arcsec)
0.08620
Eq. Temperature
845K
(572 °C)
Insolation (S⊕)
92.35
Earth = 1.00
Earth Similarity (ESI)
0.347
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
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
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-46
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,309 K — cooler than the Sun (5,778 K)
Estimated Age
2.34 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.790 R☉
Stellar Mass
0.883 M☉
Metallicity [Fe/H]
0.17
Extended Stellar Properties
Surface gravity (log g)
4.583 dex
Stellar density
1.660 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.259 mas
Total Proper Motion
3.280 mas/yr
PM Right Ascension
3.16 mas/yr
PM Declination
0.89 mas/yr
Galactic Cartesian (pc)
x = 0.243 · y = -0.695 · z = 0.677
Equatorial (J2000)
RA 289.26874° · Dec 42.60418°
Galactic ℓ, b
74.114° · 13.624°
Ecliptic λ, β
303.407° · 63.825°
HTM-20 index
951086412
Similar Worlds
Kepler-262 c
Super-Earth · G-type yellow (Sun-like)
Radius 1.64 R⊕ · 1,999.8 ly
Kepler-1530 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.64 R⊕ · 1,597.8 ly
Kepler-764 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.64 R⊕ · 3,417.6 ly
Kepler-179 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.64 R⊕ · 1,975.5 ly
Kepler-1073 c
Super-Earth · G-type yellow (Sun-like)
Radius 1.64 R⊕ · 2,641.5 ly
Kepler-9 d
Super-Earth · G-type yellow (Sun-like)
Radius 1.64 R⊕ · 2,049.1 ly