Key parameters at a glance
- A radius of 3.00 Earth radii
- A mass of 53.90 Earth masses
- Surface gravity around 5.99 g
- An orbital period of 84.687 days
- Semi-major axis 0.4172 AU
- Equilibrium temperature 611 K (338 °C)
- Distance from Earth 1,945.93 light-years
- Earth Similarity Index 0.380
- Travel time at Voyager 1 speed 34,316,443 years
1 sibling around Kepler-462
Kepler-462 b 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-462 b this | Sub-Neptune | 3.00 | 53.90 | 84.687 | 611 | 2016 |
| Kepler-462 c | Neptune-like | 4.00 | 6.00 | 207.620 | 453 | 2020 |
Kepler-462 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#521of 1978
top 26.3%
This planet
3.00R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-462 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.00 | 11.21 |
| Mass (M⊕) | 1.00 | 53.90 | 317.83 |
| Density (g/cm³) | 5.51 | 9.30 | 1.33 |
| Surface Gravity (g) | 1.00 | 5.99 | 2.53 |
| Insolation (S⊕) | 1.00 | 31.27 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 53.900 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 269263577
Gaia DR2
Gaia DR2 2075998903831657472
Gaia DR3
Gaia DR3 2075998903831657472
System
Kepler-462
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 84.69 Earth days (23.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.4172 AU.
Transit Fingerprint
Depth
0.035 %
Duration
10.025 h
Impact parameter b
-0.310
Rp / R★
0.017500
Transit midpoint (BJD)
2,454,983.5728
Photometric dip
Transit produces a flux drop of 348 ppm lasting ≈ 10.02 h.
Extended Orbital Architecture
Planet / star radius ratio
0.017500
Semi-major axis / stellar radius
65.554
Impact parameter (b)
-0.310
Transit mid-time (BJD)
2,454,983.5728
Long. of periastron (ω)
51.90°
Sky-projected obliquity (λ)
-32.00°
True obliquity (ψ)
72.00°
Angular separation (arcsec)
0.69900
Eq. Temperature
611K
(338 °C)
Insolation (S⊕)
31.27
Earth = 1.00
Earth Similarity (ESI)
0.380
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
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-462
Spectral Class
A-type white
Effective Temperature
7,500 K — hotter than the Sun (5,778 K)
Estimated Age
0.50 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.570 R☉
Stellar Mass
1.590 M☉
Metallicity [Fe/H]
0.05
Extended Stellar Properties
Surface gravity (log g)
4.220 dex
Stellar density
0.560 g/cm³
Rotational v·sin i
80.00 km/s
Rotation period
0.37 days
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.648 mas
Total Proper Motion
1.357 mas/yr
PM Right Ascension
-1.28 mas/yr
PM Declination
-0.44 mas/yr
Galactic Cartesian (pc)
x = 0.359 · y = -0.626 · z = 0.692
Equatorial (J2000)
RA 299.82115° · Dec 43.81428°
Galactic ℓ, b
78.829° · 7.373°
Ecliptic λ, β
320.195° · 62.155°
HTM-20 index
1713944515