Key parameters at a glance
- A radius of 2.02 Earth radii
- A mass of 4.74 Earth masses
- Surface gravity around 1.16 g
- An orbital period of 13.324 days
- Semi-major axis 0.0862 AU
- Equilibrium temperature 378 K (105 °C)
- Distance from Earth 2,067.62 light-years
- Earth Similarity Index 0.679
- Travel time at Voyager 1 speed 36,462,539 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-834 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1927of 1978
top 97.4%
This planet
2.02R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-834 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.02 | 11.21 |
| Mass (M⊕) | 1.00 | 4.74 | 317.83 |
| Density (g/cm³) | 5.51 | 3.16 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.16 | 2.53 |
| Insolation (S⊕) | 1.00 | 11.85 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 158392088
Gaia DR2
Gaia DR2 2106246984096567552
Gaia DR3
Gaia DR3 2106246984096567552
System
Kepler-834
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 13.32 Earth days (3.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0862 AU.
Transit Fingerprint
Depth
0.078 %
Duration
3.277 h
Impact parameter b
0.073
Rp / R★
0.027567
Transit midpoint (BJD)
2,454,968.2445
Photometric dip
Transit produces a flux drop of 781 ppm lasting ≈ 3.28 h.
Extended Orbital Architecture
Planet / star radius ratio
0.027567
Semi-major axis / stellar radius
32.330
Impact parameter (b)
0.073
Transit mid-time (BJD)
2,454,968.2445
Angular separation (arcsec)
0.13600
Eq. Temperature
378K
(105 °C)
Insolation (S⊕)
11.85
Earth = 1.00
Earth Similarity (ESI)
0.679
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
Morton et al. 2016Instrument
Kepler CCD Array
Publication
2016-05
Observation locale
Space
Discovery cohort
Planets confirmed in 2016 at Kepler (12 shown).
Host System: Kepler-834
Spectral Class
K-type orange
Effective Temperature
4,554 K — cooler than the Sun (5,778 K)
Estimated Age
2.69 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.660 R☉
Stellar Mass
0.700 M☉
Metallicity [Fe/H]
-0.13
Extended Stellar Properties
Surface gravity (log g)
4.640 dex
Stellar density
3.602 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.550 mas
Total Proper Motion
6.553 mas/yr
PM Right Ascension
-3.06 mas/yr
PM Declination
-5.80 mas/yr
Galactic Cartesian (pc)
x = 0.207 · y = -0.674 · z = 0.709
Equatorial (J2000)
RA 287.05447° · Dec 45.18034°
Galactic ℓ, b
75.900° · 16.114°
Ecliptic λ, β
301.589° · 66.759°
HTM-20 index
-2058929806
Similar Worlds
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K2-62 b
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Kepler-833 b
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K2-16 b
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TOI-544 b
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Kepler-1461 b
Sub-Neptune · K-type orange
Radius 2.03 R⊕ · 2,214.9 ly