Key parameters at a glance
- A radius of 1.12 Earth radii
- A mass of 1.46 Earth masses
- Surface gravity around 1.16 g
- An orbital period of 8.167 days
- Semi-major axis 0.0798 AU
- Equilibrium temperature 865 K (592 °C)
- Distance from Earth 368.64 light-years
- Earth Similarity Index 0.370
- Travel time at Voyager 1 speed 6,500,928 years
1 sibling around Kepler-1869
Kepler-1869 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-1869 c | Rocky Terrestrial | 0.74 | 0.33 | 1.717 | 1,455 | 2023 |
| Kepler-1869 b this | Rocky Terrestrial | 1.12 | 1.46 | 8.167 | 865 | 2021 |
Kepler-1869 b Planet Profile
Physical Specs
Classification
Planet Type
Rocky Terrestrial
Discovery
Size rank in cohort
Rank by radius
#204of 570
top 35.6%
This planet
1.12R⊕
Rocky Terrestrial median
1.01R⊕
Nearest-size peers
| Metric | Earth | Kepler-1869 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.12 | 11.21 |
| Mass (M⊕) | 1.00 | 1.46 | 317.83 |
| Density (g/cm³) | 5.51 | 5.72 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.16 | 2.53 |
| Insolation (S⊕) | 1.00 | 138.50 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 63368895
Gaia DR2
Gaia DR2 2125751461382627840
Gaia DR3
Gaia DR3 2125751461382627840
System
Kepler-1869
Percentile among Rocky Terrestrial cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 8.17 Earth days (2.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0798 AU.
Transit Fingerprint
Depth
0.011 %
Duration
3.286 h
Impact parameter b
0.279
Rp / R★
0.009413
Transit midpoint (BJD)
2,454,969.2031
Photometric dip
Transit produces a flux drop of 105 ppm lasting ≈ 3.29 h.
Extended Orbital Architecture
Planet / star radius ratio
0.009413
Semi-major axis / stellar radius
6.000
Impact parameter (b)
0.279
Transit mid-time (BJD)
2,454,969.2031
Angular separation (arcsec)
0.70600
Eq. Temperature
865K
(592 °C)
Insolation (S⊕)
138.50
Earth = 1.00
Earth Similarity (ESI)
0.370
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
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-1869
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,808 K — hotter than the Sun (5,778 K)
Estimated Age
1.29 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.902 R☉
Stellar Mass
0.987 M☉
Metallicity [Fe/H]
-0.06
Extended Stellar Properties
Surface gravity (log g)
4.522 dex
Stellar density
0.438 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
8.819 mas
Total Proper Motion
28.831 mas/yr
PM Right Ascension
-19.44 mas/yr
PM Declination
21.29 mas/yr
Galactic Cartesian (pc)
x = 0.282 · y = -0.678 · z = 0.679
Equatorial (J2000)
RA 292.61500° · Dec 42.76434°
Galactic ℓ, b
75.346° · 11.472°
Ecliptic λ, β
308.750° · 63.193°
HTM-20 index
-45944324
Similar Worlds
Kepler-1695 b
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 1.12 R⊕ · 2,580.5 ly
Kepler-1082 b
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 1.12 R⊕ · 2,412.1 ly
Kepler-334 b
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 1.12 R⊕ · 1,391.3 ly
Kepler-756 b
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 1.12 R⊕ · 2,778.8 ly
Kepler-285 c
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 1.12 R⊕ · 2,688.5 ly
Kepler-384 b
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 1.12 R⊕ · 2,921.3 ly