Key parameters at a glance
- A radius of 1.62 Earth radii
- A mass of 3.26 Earth masses
- Surface gravity around 1.24 g
- An orbital period of 2.422 days
- Semi-major axis 0.0382 AU
- Equilibrium temperature 1,532 K (1259 °C)
- Distance from Earth 6,597.81 light-years
- Earth Similarity Index 0.180
- Travel time at Voyager 1 speed 116,352,368 years
1 sibling around Kepler-864
Kepler-864 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 |
|---|---|---|---|---|---|---|
| Kepler-864 c this | Super-Earth | 1.62 | 3.26 | 2.422 | 1,532 | 2023 |
| Kepler-864 b | Sub-Neptune | 2.40 | 6.35 | 5.834 | 1,143 | 2016 |
Kepler-864 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#532of 1176
top 45.2%
This planet
1.62R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-864 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.62 | 11.21 |
| Mass (M⊕) | 1.00 | 3.26 | 317.83 |
| Density (g/cm³) | 5.51 | 4.21 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.24 | 2.53 |
| Insolation (S⊕) | 1.00 | 1,305.04 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 164836049
Gaia DR2
Gaia DR2 2107279803471399168
Gaia DR3
Gaia DR3 2107279803471399168
System
Kepler-864
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 2.42 Earth days (0.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0382 AU.
Transit Fingerprint
Depth
0.017 %
Duration
2.965 h
Impact parameter b
0.550
Rp / R★
0.012380
Transit midpoint (BJD)
2,454,966.8352
Photometric dip
Transit produces a flux drop of 172 ppm lasting ≈ 2.97 h.
Extended Orbital Architecture
Planet / star radius ratio
0.012380
Semi-major axis / stellar radius
5.350
Impact parameter (b)
0.550
Transit mid-time (BJD)
2,454,966.8352
Angular separation (arcsec)
0.01890
Eq. Temperature
1,532K
(1259 °C)
Insolation (S⊕)
1,305.04
Earth = 1.00
Earth Similarity (ESI)
0.180
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
Discovery Paper
Primary reference
Valizadegan et al. 2023Instrument
Kepler CCD Array
Publication
2023-05
Observation locale
Space
Discovery cohort
Planets confirmed in 2023 at Kepler (12 shown).
Host System: Kepler-864
Spectral Class
F-type yellow-white
Effective Temperature
6,213 K — hotter than the Sun (5,778 K)
Estimated Age
0.30 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.195 R☉
Stellar Mass
1.270 M☉
Metallicity [Fe/H]
0.36
Extended Stellar Properties
Surface gravity (log g)
4.387 dex
Stellar density
0.495 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.464 mas
Total Proper Motion
8.497 mas/yr
PM Right Ascension
1.43 mas/yr
PM Declination
-8.38 mas/yr
Galactic Cartesian (pc)
x = 0.179 · y = -0.667 · z = 0.723
Equatorial (J2000)
RA 285.05709° · Dec 46.32061°
Galactic ℓ, b
76.468° · 17.831°
Ecliptic λ, β
298.956° · 68.252°
HTM-20 index
-1346453015
Similar Worlds
Kepler-750 c
Super-Earth · F-type yellow-white
Radius 1.62 R⊕ · 4,227.0 ly
Kepler-1900 b
Super-Earth · F-type yellow-white
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Kepler-1584 b
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Kepler-58 e
Super-Earth · F-type yellow-white
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Kepler-1620 b
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Kepler-208 b
Super-Earth · F-type yellow-white
Radius 1.63 R⊕ · 2,528.8 ly