Key parameters at a glance
- A radius of 1.67 Earth radii
- A mass of 3.43 Earth masses
- Surface gravity around 1.23 g
- An orbital period of 15.450 days
- Semi-major axis 0.0662 AU
- Equilibrium temperature 581 K (308 °C)
- Distance from Earth 2,076.62 light-years
- Earth Similarity Index 0.500
- Travel time at Voyager 1 speed 36,621,116 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around Kepler-1802
Kepler-1802 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-1802 b this | Super-Earth | 1.67 | 3.43 | 15.450 | 581 | 2021 |
| Kepler-1802 c | Sub-Neptune | 2.32 | 6.00 | 33.136 | 357 | 2021 |
Kepler-1802 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#451of 1176
top 38.3%
This planet
1.67R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-1802 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.67 | 11.21 |
| Mass (M⊕) | 1.00 | 3.43 | 317.83 |
| Density (g/cm³) | 5.51 | 4.04 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.23 | 2.53 |
| Insolation (S⊕) | 1.00 | 26.91 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 239291510
Gaia DR2
Gaia DR2 2076053604520641024
Gaia DR3
Gaia DR3 2076053604520641024
System
Kepler-1802
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 15.45 Earth days (4.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0662 AU.
Transit Fingerprint
Depth
0.038 %
Duration
2.042 h
Impact parameter b
0.470
Rp / R★
0.018704
Transit midpoint (BJD)
2,455,009.8020
Photometric dip
Transit produces a flux drop of 382 ppm lasting ≈ 2.04 h.
Extended Orbital Architecture
Planet / star radius ratio
0.018704
Semi-major axis / stellar radius
10.880
Impact parameter (b)
0.470
Transit mid-time (BJD)
2,455,009.8020
Angular separation (arcsec)
0.10400
Eq. Temperature
581K
(308 °C)
Insolation (S⊕)
26.91
Earth = 1.00
Earth Similarity (ESI)
0.500
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
Valizadegan et al. 2022Instrument
Kepler CCD Array
Publication
2022-02
Observation locale
Space
Discovery cohort
Planets confirmed in 2021 at Kepler (12 shown).
Host System: Kepler-1802
Spectral Class
K-type orange
Effective Temperature
4,245 K — cooler than the Sun (5,778 K)
Estimated Age
13.90 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.637 R☉
Stellar Mass
0.649 M☉
Metallicity [Fe/H]
0.00
Extended Stellar Properties
Surface gravity (log g)
4.641 dex
Stellar density
0.408 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 12 bands
Astrometric Data
Parallax
1.554 mas
Total Proper Motion
8.141 mas/yr
PM Right Ascension
-1.54 mas/yr
PM Declination
-7.99 mas/yr
Galactic Cartesian (pc)
x = 0.361 · y = -0.620 · z = 0.696
Equatorial (J2000)
RA 300.24209° · Dec 44.14129°
Galactic ℓ, b
79.269° · 7.282°
Ecliptic λ, β
321.083° · 62.321°
HTM-20 index
-1720396576
Similar Worlds
Kepler-763 d
Super-Earth · K-type orange
Radius 1.67 R⊕ · 3,139.1 ly
Kepler-1480 b
Super-Earth · K-type orange
Radius 1.67 R⊕ · 1,633.7 ly
HD 3167 b
Super-Earth · K-type orange
Radius 1.67 R⊕ · 154.2 ly
Kepler-1143 b
Super-Earth · K-type orange
Radius 1.67 R⊕ · 1,810.8 ly
Kepler-167 c
Super-Earth · K-type orange
Radius 1.67 R⊕ · 1,115.2 ly
TOI-871 b
Super-Earth · K-type orange
Radius 1.66 R⊕ · 221.9 ly