Key parameters at a glance
- A radius of 1.55 Earth radii
- A mass of 3.02 Earth masses
- Surface gravity around 1.26 g
- An orbital period of 4.096 days
- Semi-major axis 0.0457 AU
- Equilibrium temperature 851 K (578 °C)
- Distance from Earth 2,320.63 light-years
- Earth Similarity Index 0.351
- Travel time at Voyager 1 speed 40,924,295 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-1899 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#651of 1176
top 55.3%
This planet
1.55R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-1899 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.55 | 11.21 |
| Mass (M⊕) | 1.00 | 3.02 | 317.83 |
| Density (g/cm³) | 5.51 | 4.45 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.26 | 2.53 |
| Insolation (S⊕) | 1.00 | 124.30 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 137348756
Gaia DR2
Gaia DR2 2051903999855859712
Gaia DR3
Gaia DR3 2051903999855859712
System
Kepler-1899
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 4.10 Earth days (1.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0457 AU.
Transit Fingerprint
Depth
0.041 %
Duration
1.704 h
Impact parameter b
0.752
Rp / R★
0.020221
Transit midpoint (BJD)
2,454,964.6199
Photometric dip
Transit produces a flux drop of 406 ppm lasting ≈ 1.70 h.
Extended Orbital Architecture
Planet / star radius ratio
0.020221
Semi-major axis / stellar radius
10.000
Impact parameter (b)
0.752
Transit mid-time (BJD)
2,454,964.6199
Angular separation (arcsec)
0.06420
Eq. Temperature
851K
(578 °C)
Insolation (S⊕)
124.30
Earth = 1.00
Earth Similarity (ESI)
0.351
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-1899
Spectral Class
K-type orange
Effective Temperature
4,791 K — cooler than the Sun (5,778 K)
Estimated Age
13.90 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.742 R☉
Stellar Mass
0.759 M☉
Metallicity [Fe/H]
0.07
Extended Stellar Properties
Surface gravity (log g)
4.577 dex
Stellar density
2.299 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 17 bands
Astrometric Data
Parallax
1.378 mas
Total Proper Motion
23.378 mas/yr
PM Right Ascension
-13.62 mas/yr
PM Declination
-19.00 mas/yr
Galactic Cartesian (pc)
x = 0.296 · y = -0.731 · z = 0.615
Equatorial (J2000)
RA 292.03338° · Dec 37.97446°
Galactic ℓ, b
70.791° · 9.713°
Ecliptic λ, β
304.785° · 58.781°
HTM-20 index
1248598498
Similar Worlds
Kepler-1064 b
Super-Earth · K-type orange
Radius 1.55 R⊕ · 1,219.8 ly
Kepler-55 e
Super-Earth · K-type orange
Radius 1.55 R⊕ · 1,887.8 ly
Kepler-1254 b
Super-Earth · K-type orange
Radius 1.55 R⊕ · 2,031.4 ly
K2-165 c
Super-Earth · K-type orange
Radius 1.55 R⊕ · 439.0 ly
Kepler-1805 b
Super-Earth · K-type orange
Radius 1.55 R⊕ · 722.9 ly
TOI-238 b
Super-Earth · K-type orange
Radius 1.56 R⊕ · 262.7 ly