Key parameters at a glance
- A radius of 2.43 Earth radii
- A mass of 6.48 Earth masses
- Surface gravity around 1.10 g
- An orbital period of 3.909 days
- Semi-major axis 0.0418 AU
- Equilibrium temperature 787 K (514 °C)
- Distance from Earth 1,812.04 light-years
- Earth Similarity Index 0.325
- Travel time at Voyager 1 speed 31,955,287 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-1526 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1281of 1978
top 64.7%
This planet
2.43R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-1526 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.43 | 11.21 |
| Mass (M⊕) | 1.00 | 6.48 | 317.83 |
| Density (g/cm³) | 5.51 | 2.48 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.10 | 2.53 |
| Insolation (S⊕) | 1.00 | 99.10 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 120425617
Gaia DR2
Gaia DR2 2100148542853587840
Gaia DR3
Gaia DR3 2100148542853587840
System
Kepler-1526
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 3.91 Earth days (1.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0418 AU.
Transit Fingerprint
Depth
0.087 %
Duration
1.843 h
Impact parameter b
0.111
Rp / R★
0.032341
Transit midpoint (BJD)
2,454,966.9299
Photometric dip
Transit produces a flux drop of 867 ppm lasting ≈ 1.84 h.
Extended Orbital Architecture
Planet / star radius ratio
0.032341
Semi-major axis / stellar radius
17.210
Impact parameter (b)
0.111
Transit mid-time (BJD)
2,454,966.9299
Angular separation (arcsec)
0.07520
Eq. Temperature
787K
(514 °C)
Insolation (S⊕)
99.10
Earth = 1.00
Earth Similarity (ESI)
0.325
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-1526
Spectral Class
K-type orange
Effective Temperature
4,601 K — cooler than the Sun (5,778 K)
Estimated Age
4.68 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.690 R☉
Stellar Mass
0.730 M☉
Metallicity [Fe/H]
-0.01
Extended Stellar Properties
Surface gravity (log g)
4.620 dex
Stellar density
6.317 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 17 bands
Astrometric Data
Parallax
1.772 mas
Total Proper Motion
9.034 mas/yr
PM Right Ascension
6.94 mas/yr
PM Declination
5.78 mas/yr
Galactic Cartesian (pc)
x = 0.203 · y = -0.752 · z = 0.628
Equatorial (J2000)
RA 285.11973° · Dec 38.86646°
Galactic ℓ, b
69.279° · 14.999°
Ecliptic λ, β
294.772° · 61.012°
HTM-20 index
512833538
Similar Worlds
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Sub-Neptune · K-type orange
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Kepler-55 b
Sub-Neptune · K-type orange
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Kepler-786 b
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TOI-904 b
Sub-Neptune · K-type orange
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Kepler-1716 b
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Kepler-1858 b
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Radius 2.42 R⊕ · 2,717.1 ly