Key parameters at a glance

A radius of 2.84 Earth radii
A mass of 8.45 Earth masses
Surface gravity around 1.05 g
An orbital period of 13.285 days
Semi-major axis 0.1165 AU
Equilibrium temperature 1,157 K (884 °C)
Distance from Earth 2,446.30 light-years
Earth Similarity Index 0.203
Travel time at Voyager 1 speed 43,140,506 years

Kepler-527 b Planet Profile

Physical Specs

Radius

2.84 R⊕

Radius (Jupiter)

0.253 R♃

Mass

8.45 M⊕

Mass (Jupiter)

0.027 M♃

Density

2.03 g/cm³

Surface Gravity

1.05 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.203

HZ Position Inner

Controversial No

Discovery

Year 2016

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#694of 1978

top 35.0%

This planet

2.84R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-133 c 2.84 R⊕ Kepler-701 b 2.84 R⊕ Kepler-599 b 2.84 R⊕

Metric	Earth	Kepler-527 b	Jupiter
Radius (R⊕)	1.00	2.84	11.21
Mass (M⊕)	1.00	8.45	317.83
Density (g/cm³)	5.51	2.03	1.33
Surface Gravity (g)	1.00	1.05	2.53
Insolation (S⊕)	1.00	147.05	0.037

Star Catalogue Identifiers

TIC

TIC 159642269

Gaia DR2

Gaia DR2 2129162283888866688

Gaia DR3

Gaia DR3 2129162283888866688

System

Kepler-527

Percentile among Sub-Neptune cohort

Radius 2.840 R⊕ · percentile 65 / cohort 1978

Mass 8.450 M⊕ · percentile 59 / cohort 1978

Orbital period 13.29 d · percentile 45 / cohort 1946

Distance 750.04 pc · percentile 62 / cohort 1975

ESI 0.203 · percentile 7 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

13.285 days

Semi-major axis

0.1165 AU

Eccentricity

0.000

Inclination

85.87 °

Year Length

A year here lasts approximately 13.29 Earth days (3.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1165 AU.

Transit Fingerprint

Depth

0.038 %

Duration

6.180 h

Impact parameter b

0.731

Rp / R★

0.018077

Transit midpoint (BJD)

2,455,002.8621

Photometric dip

Transit produces a flux drop of 383 ppm lasting ≈ 6.18 h.

Extended Orbital Architecture

Planet / star radius ratio

0.018077

Semi-major axis / stellar radius

11.570

Impact parameter (b)

0.731

Transit mid-time (BJD)

2,455,002.8621

Angular separation (arcsec)

0.15500

Eq. Temperature

1,157K

(884 °C)

Insolation (S⊕)

147.05

Earth = 1.00

Earth Similarity (ESI)

0.203

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

Discovery Paper

Primary reference

Morton et al. 2016

Instrument

Kepler CCD Array

Publication

2016-05

Observation locale

Space

Discovery cohort

Planets confirmed in 2016 at Kepler (12 shown).

Kepler-1512 b · Rocky Terrestrial Kepler-1410 b · Super-Earth Kepler-560 b · Super-Earth Kepler-1389 b · Super-Earth Kepler-1450 b · Super-Earth Kepler-1544 b · Super-Earth Kepler-1459 b · Super-Earth Kepler-1638 b · Super-Earth Kepler-737 b · Super-Earth Kepler-1185 b · Super-Earth Kepler-1178 b · Rocky Terrestrial Kepler-1040 b · Sub-Neptune

Host System: Kepler-527

Spectral Class

F-type yellow-white

Effective Temperature

6,388 K — hotter than the Sun (5,778 K)

Estimated Age

2.40 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.450 R☉

Stellar Mass

1.280 M☉

Metallicity [Fe/H]

0.03

Extended Stellar Properties

Surface gravity (log g)

4.220 dex

Stellar density

0.670 g/cm³

Metallicity ratio

[Fe/H]

Distance

750.04 parsec

Light-years 2,446.30 ly

V-band magnitude

13.47 mag

Voyager-speed travel 43,140,506 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.304 mas

Total Proper Motion

1.007 mas/yr

PM Right Ascension

-0.38 mas/yr

PM Declination

-0.93 mas/yr

Galactic Cartesian (pc)

x = 0.242 · y = -0.632 · z = 0.736

Equatorial (J2000)

RA 290.95791° · Dec 47.40627°

Galactic ℓ, b

79.130° · 14.527°

Ecliptic λ, β

310.139° · 67.946°

HTM-20 index

-164333112