Key parameters at a glance

A radius of 3.55 Earth radii
A mass of 12.30 Earth masses
Surface gravity around 0.98 g
An orbital period of 16.005 days
Semi-major axis 0.1345 AU
Equilibrium temperature 1,040 K (767 °C)
Distance from Earth 2,411.46 light-years
Earth Similarity Index 0.208
Travel time at Voyager 1 speed 42,526,046 years

Kepler-1015 b Planet Profile

Physical Specs

Radius

3.55 R⊕

Radius (Jupiter)

0.317 R♃

Mass

12.30 M⊕

Mass (Jupiter)

0.039 M♃

Density

1.51 g/cm³

Surface Gravity

0.98 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.208

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

#155of 1978

top 7.8%

This planet

3.55R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-812 b 3.55 R⊕ Kepler-1562 b 3.55 R⊕ K2-178 b 3.56 R⊕

Metric	Earth	Kepler-1015 b	Jupiter
Radius (R⊕)	1.00	3.55	11.21
Mass (M⊕)	1.00	12.30	317.83
Density (g/cm³)	5.51	1.51	1.33
Surface Gravity (g)	1.00	0.98	2.53
Insolation (S⊕)	1.00	172.11	0.037

Star Catalogue Identifiers

TIC

TIC 63373862

Gaia DR2

Gaia DR2 2125896459478159360

Gaia DR3

Gaia DR3 2125896459478159360

System

Kepler-1015

Percentile among Sub-Neptune cohort

Radius 3.550 R⊕ · percentile 92 / cohort 1978

Mass 12.300 M⊕ · percentile 85 / cohort 1978

Orbital period 16.00 d · percentile 53 / cohort 1946

Distance 739.36 pc · percentile 62 / cohort 1975

ESI 0.208 · percentile 8 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

16.005 days

Semi-major axis

0.1345 AU

Eccentricity

0.000

Inclination

89.96 °

Year Length

A year here lasts approximately 16.00 Earth days (4.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1345 AU.

Transit Fingerprint

Depth

0.037 %

Duration

6.465 h

Impact parameter b

0.853

Rp / R★

0.017684

Transit midpoint (BJD)

2,454,968.2545

Photometric dip

Transit produces a flux drop of 366 ppm lasting ≈ 6.46 h.

Extended Orbital Architecture

Planet / star radius ratio

0.017684

Semi-major axis / stellar radius

19.140

Impact parameter (b)

0.853

Transit mid-time (BJD)

2,454,968.2545

Angular separation (arcsec)

0.18200

Eq. Temperature

1,040K

(767 °C)

Insolation (S⊕)

172.11

Earth = 1.00

Earth Similarity (ESI)

0.208

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-1015

Spectral Class

F-type yellow-white

Effective Temperature

6,769 K — hotter than the Sun (5,778 K)

Estimated Age

1.58 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.810 R☉

Stellar Mass

1.490 M☉

Metallicity [Fe/H]

0.06

Extended Stellar Properties

Surface gravity (log g)

4.090 dex

Stellar density

0.430 g/cm³

Metallicity ratio

[Fe/H]

Distance

739.36 parsec

Light-years 2,411.46 ly

V-band magnitude

12.83 mag

Voyager-speed travel 42,526,046 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.324 mas

Total Proper Motion

7.694 mas/yr

PM Right Ascension

-0.15 mas/yr

PM Declination

-7.69 mas/yr

Galactic Cartesian (pc)

x = 0.281 · y = -0.670 · z = 0.687

Equatorial (J2000)

RA 292.75731° · Dec 43.42684°

Galactic ℓ, b

75.999° · 11.675°

Ecliptic λ, β

309.479° · 63.779°

HTM-20 index

-600679712