Key parameters at a glance
- A radius of 3.08 Earth radii
- A mass of 9.69 Earth masses
- Surface gravity around 1.02 g
- An orbital period of 4.431 days
- Semi-major axis 0.0540 AU
- Equilibrium temperature 1,104 K (831 °C)
- Distance from Earth 4,400.27 light-years
- Earth Similarity Index 0.207
- Travel time at Voyager 1 speed 77,598,730 years
1 sibling around Kepler-232
Kepler-232 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-232 b this | Sub-Neptune | 3.08 | 9.69 | 4.431 | 1,104 | 2014 |
| Kepler-232 c | Sub-Neptune | 3.83 | 14.00 | 11.379 | 806 | 2014 |
Kepler-232 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#448of 1978
top 22.6%
This planet
3.08R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-232 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.08 | 11.21 |
| Mass (M⊕) | 1.00 | 9.69 | 317.83 |
| Density (g/cm³) | 5.51 | 1.82 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.02 | 2.53 |
| Insolation (S⊕) | 1.00 | 410.58 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 27686898
Gaia DR2
Gaia DR2 2135595045386787200
Gaia DR3
Gaia DR3 2135595045386787200
System
Kepler-232
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 4.43 Earth days (1.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0540 AU.
Transit Fingerprint
Depth
0.101 %
Duration
3.172 h
Impact parameter b
0.350
Rp / R★
0.030227
Transit midpoint (BJD)
2,455,004.0155
Photometric dip
Transit produces a flux drop of 1,011 ppm lasting ≈ 3.17 h.
Extended Orbital Architecture
Planet / star radius ratio
0.030227
Semi-major axis / stellar radius
11.142
Impact parameter (b)
0.350
Transit mid-time (BJD)
2,455,004.0155
Angular separation (arcsec)
0.04000
Eq. Temperature
1,104K
(831 °C)
Insolation (S⊕)
410.58
Earth = 1.00
Earth Similarity (ESI)
0.207
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
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-232
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,847 K — hotter than the Sun (5,778 K)
Estimated Age
1.40 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.968 R☉
Stellar Mass
0.970 M☉
Metallicity [Fe/H]
0.03
Extended Stellar Properties
Surface gravity (log g)
4.495 dex
Stellar density
1.333 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.713 mas
Total Proper Motion
1.283 mas/yr
PM Right Ascension
0.88 mas/yr
PM Declination
0.93 mas/yr
Galactic Cartesian (pc)
x = 0.273 · y = -0.565 · z = 0.778
Equatorial (J2000)
RA 295.81617° · Dec 51.12172°
Galactic ℓ, b
83.993° · 13.281°
Ecliptic λ, β
322.629° · 69.884°
HTM-20 index
-211065649
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Kepler-1929 b
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