Key parameters at a glance
- A radius of 1.93 Earth radii
- A mass of 4.38 Earth masses
- Surface gravity around 1.18 g
- An orbital period of 5.608 days
- Semi-major axis 0.0550 AU
- Equilibrium temperature 766 K (493 °C)
- Distance from Earth 823.86 light-years
- Earth Similarity Index 0.364
- Travel time at Voyager 1 speed 14,528,718 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around K2-35
K2-35 c 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 |
|---|---|---|---|---|---|---|
| K2-35 b | Super-Earth | 1.32 | 2.30 | 2.400 | 979 | 2016 |
| K2-35 c this | Super-Earth | 1.93 | 4.38 | 5.608 | 766 | 2016 |
K2-35 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#85of 1176
top 7.1%
This planet
1.93R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | K2-35 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.93 | 11.21 |
| Mass (M⊕) | 1.00 | 4.38 | 317.83 |
| Density (g/cm³) | 5.51 | 3.35 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.18 | 2.53 |
| Insolation (S⊕) | 1.00 | 68.00 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 363478257
Gaia DR2
Gaia DR2 3810609819552494976
Gaia DR3
Gaia DR3 3810609819552494976
System
K2-35
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 5.61 Earth days (1.5% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0550 AU.
Transit Fingerprint
Depth
0.094 %
Duration
1.798 h
Impact parameter b
0.660
Rp / R★
0.028494
Transit midpoint (BJD)
2,456,812.1190
Photometric dip
Transit produces a flux drop of 938 ppm lasting ≈ 1.80 h.
Extended Orbital Architecture
Planet / star radius ratio
0.028494
Semi-major axis / stellar radius
19.100
Impact parameter (b)
0.660
Transit mid-time (BJD)
2,456,812.1190
Long. of periastron (ω)
41.16°
Angular separation (arcsec)
0.21800
Eq. Temperature
766K
(493 °C)
Insolation (S⊕)
68.00
Earth = 1.00
Earth Similarity (ESI)
0.364
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water. Close-orbiting tidally-locked around a cool host.
Discovery Paper
Primary reference
Sinukoff et al. 2016Instrument
Kepler CCD Array
Publication
2016-08
Observation locale
Space
Discovery cohort
Planets confirmed in 2016 at K2 (12 shown).
Host System: K2-35
Spectral Class
K-type orange
Effective Temperature
4,403 K — cooler than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
0.620 R☉
Stellar Mass
0.702 M☉
Metallicity [Fe/H]
0.04
Extended Stellar Properties
Surface gravity (log g)
4.697 dex
Stellar density
2.027 g/cm³
Rotational v·sin i
3.00 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 17 bands
Astrometric Data
Parallax
3.930 mas
Total Proper Motion
19.966 mas/yr
PM Right Ascension
4.41 mas/yr
PM Declination
-19.47 mas/yr
Galactic Cartesian (pc)
x = -0.985 · y = 0.172 · z = 0.022
Equatorial (J2000)
RA 170.10310° · Dec 1.28587°
Galactic ℓ, b
258.929° · 56.174°
Ecliptic λ, β
170.396° · -2.738°
HTM-20 index
136658859
Similar Worlds
K2-49 b
Super-Earth · K-type orange
Radius 1.93 R⊕ · 1,490.9 ly
Kepler-298 c
Super-Earth · K-type orange
Radius 1.93 R⊕ · 1,690.2 ly
Kepler-329 c
Super-Earth · K-type orange
Radius 1.93 R⊕ · 1,434.2 ly
Kepler-878 b
Super-Earth · K-type orange
Radius 1.93 R⊕ · 2,581.9 ly
K2-414 c
Super-Earth · K-type orange
Radius 1.93 R⊕ · 848.1 ly
K2-339 b
Super-Earth · K-type orange
Radius 1.92 R⊕ · 1,175.3 ly