Key parameters at a glance
- A radius of 2.26 Earth radii
- A mass of 5.73 Earth masses
- Surface gravity around 1.12 g
- An orbital period of 12.124 days
- Semi-major axis 0.0965 AU
- Equilibrium temperature 675 K (402 °C)
- Distance from Earth 2,134.85 light-years
- Earth Similarity Index 0.390
- Travel time at Voyager 1 speed 37,648,092 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-1034 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1572of 1978
top 79.4%
This planet
2.26R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-1034 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.26 | 11.21 |
| Mass (M⊕) | 1.00 | 5.73 | 317.83 |
| Density (g/cm³) | 5.51 | 2.73 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.12 | 2.53 |
| Insolation (S⊕) | 1.00 | 36.79 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 120762990
Gaia DR2
Gaia DR2 2099851331117081600
Gaia DR3
Gaia DR3 2099851331117081600
System
Kepler-1034
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 12.12 Earth days (3.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0965 AU.
Transit Fingerprint
Depth
0.079 %
Duration
3.314 h
Impact parameter b
0.081
Rp / R★
0.026095
Transit midpoint (BJD)
2,454,967.9556
Photometric dip
Transit produces a flux drop of 788 ppm lasting ≈ 3.31 h.
Extended Orbital Architecture
Planet / star radius ratio
0.026095
Semi-major axis / stellar radius
28.683
Impact parameter (b)
0.081
Transit mid-time (BJD)
2,454,967.9556
Angular separation (arcsec)
0.14700
Eq. Temperature
675K
(402 °C)
Insolation (S⊕)
36.79
Earth = 1.00
Earth Similarity (ESI)
0.390
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-1034
Spectral Class
K-type orange
Effective Temperature
5,198 K — cooler than the Sun (5,778 K)
Estimated Age
4.79 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.800 R☉
Stellar Mass
0.830 M☉
Metallicity [Fe/H]
-0.06
Extended Stellar Properties
Surface gravity (log g)
4.570 dex
Stellar density
3.010 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 17 bands
Astrometric Data
Parallax
1.499 mas
Total Proper Motion
11.264 mas/yr
PM Right Ascension
5.63 mas/yr
PM Declination
-9.76 mas/yr
Galactic Cartesian (pc)
x = 0.219 · y = -0.757 · z = 0.615
Equatorial (J2000)
RA 286.11541° · Dec 37.96695°
Galactic ℓ, b
68.745° · 13.926°
Ecliptic λ, β
295.921° · 59.964°
HTM-20 index
657808868
Similar Worlds
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Sub-Neptune · K-type orange
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K2-346 b
Sub-Neptune · K-type orange
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Kepler-1261 b
Sub-Neptune · K-type orange
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Kepler-568 b
Sub-Neptune · K-type orange
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Kepler-1242 b
Sub-Neptune · K-type orange
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Kepler-1388 c
Sub-Neptune · K-type orange
Radius 2.26 R⊕ · 1,480.1 ly