Key parameters at a glance
- A radius of 22.31 Earth radii
- A mass of 266.97 Earth masses
- Surface gravity around 0.54 g
- An orbital period of 8.600 days
- Semi-major axis 0.0948 AU
- Equilibrium temperature 1,729 K (1456 °C)
- Distance from Earth 4,627.40 light-years
- Earth Similarity Index 0.047
- Travel time at Voyager 1 speed 81,604,256 years
Kepler-435 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#13of 1771
top 0.7%
This planet
22.31R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | Kepler-435 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 22.31 | 11.21 |
| Mass (M⊕) | 1.00 | 266.97 | 317.83 |
| Density (g/cm³) | 5.51 | 0.13 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.54 | 2.53 |
| Insolation (S⊕) | 1.00 | 677.92 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 266.970 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 63211674
Gaia DR2
Gaia DR2 2125913531966017408
Gaia DR3
Gaia DR3 2125913531966017408
System
Kepler-435
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 8.60 Earth days (2.4% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0948 AU.
Transit Fingerprint
Depth
0.451 %
Duration
9.003 h
Impact parameter b
0.448
Rp / R★
0.063840
Transit midpoint (BJD)
2,455,010.6424
Photometric dip
Transit produces a flux drop of 4,510 ppm lasting ≈ 9.00 h.
Extended Orbital Architecture
Planet / star radius ratio
0.063840
Semi-major axis / stellar radius
6.350
Impact parameter (b)
0.448
RV semi-amplitude (K)
64.000 m/s
Transit mid-time (BJD)
2,455,010.6424
Long. of periastron (ω)
104.00°
Angular separation (arcsec)
0.06680
Eq. Temperature
1,729K
(1456 °C)
Insolation (S⊕)
677.92
Earth = 1.00
Earth Similarity (ESI)
0.047
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Radial velocity
Stellar wobble has been measured spectroscopically.
Discovery Paper
Primary reference
Almenara et al. 2015Instrument
Kepler CCD Array
Publication
2015-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2015 at Kepler (12 shown).
Host System: Kepler-435
Spectral Class
F-type yellow-white
Effective Temperature
6,161 K — hotter than the Sun (5,778 K)
Estimated Age
2.25 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
3.210 R☉
Stellar Mass
1.538 M☉
Metallicity [Fe/H]
-0.18
Extended Stellar Properties
Surface gravity (log g)
3.613 dex
Stellar density
0.066 g/cm³
Systemic radial velocity
-26.37 km/s
Rotational v·sin i
6.00 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.676 mas
Total Proper Motion
3.693 mas/yr
PM Right Ascension
2.27 mas/yr
PM Declination
-2.92 mas/yr
Galactic Cartesian (pc)
x = 0.276 · y = -0.675 · z = 0.685
Equatorial (J2000)
RA 292.28730° · Dec 43.19725°
Galactic ℓ, b
75.634° · 11.879°
Ecliptic λ, β
308.575° · 63.682°
HTM-20 index
-708851007
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