Key parameters at a glance
- A radius of 2.12 Earth radii
- A mass of 5.14 Earth masses
- Surface gravity around 1.14 g
- An orbital period of 6.070 days
- Semi-major axis 0.0615 AU
- Equilibrium temperature 789 K (516 °C)
- Distance from Earth 3,209.98 light-years
- Earth Similarity Index 0.341
- Travel time at Voyager 1 speed 56,608,081 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-1895 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1799of 1978
top 90.9%
This planet
2.12R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-1895 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.12 | 11.21 |
| Mass (M⊕) | 1.00 | 5.14 | 317.83 |
| Density (g/cm³) | 5.51 | 2.97 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.14 | 2.53 |
| Insolation (S⊕) | 1.00 | 91.45 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 26493559
Gaia DR2
Gaia DR2 2129716192930293888
Gaia DR3
Gaia DR3 2129716192930293888
System
Kepler-1895
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 6.07 Earth days (1.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0615 AU.
Transit Fingerprint
Depth
0.034 %
Duration
1.290 h
Impact parameter b
0.025
Rp / R★
0.016574
Transit midpoint (BJD)
2,454,968.3105
Photometric dip
Transit produces a flux drop of 344 ppm lasting ≈ 1.29 h.
Extended Orbital Architecture
Planet / star radius ratio
0.016574
Semi-major axis / stellar radius
36.540
Impact parameter (b)
0.025
Transit mid-time (BJD)
2,454,968.3105
Angular separation (arcsec)
0.06250
Eq. Temperature
789K
(516 °C)
Insolation (S⊕)
91.45
Earth = 1.00
Earth Similarity (ESI)
0.341
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-1895
Spectral Class
K-type orange
Effective Temperature
5,076 K — cooler than the Sun (5,778 K)
Estimated Age
1.20 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.763 R☉
Stellar Mass
0.860 M☉
Metallicity [Fe/H]
0.10
Extended Stellar Properties
Surface gravity (log g)
4.598 dex
Stellar density
15.963 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.988 mas
Total Proper Motion
3.891 mas/yr
PM Right Ascension
-2.75 mas/yr
PM Declination
-2.76 mas/yr
Galactic Cartesian (pc)
x = 0.243 · y = -0.613 · z = 0.752
Equatorial (J2000)
RA 291.67560° · Dec 48.76254°
Galactic ℓ, b
80.610° · 14.654°
Ecliptic λ, β
312.799° · 69.003°
HTM-20 index
687094268
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Kepler-1880 b
Sub-Neptune · K-type orange
Radius 2.12 R⊕ · 1,992.9 ly