Key parameters at a glance

A radius of 9.55 Earth radii
A mass of 66.20 Earth masses
Surface gravity around 0.73 g
An orbital period of 214.311 days
Semi-major axis 0.7524 AU
Equilibrium temperature 380 K (107 °C)
Distance from Earth 1,759.03 light-years
Earth Similarity Index 0.342
Travel time at Voyager 1 speed 31,020,454 years

Kepler-1515 b Planet Profile

Physical Specs

Radius

9.55 R⊕

Radius (Jupiter)

0.852 R♃

Mass

66.20 M⊕

Mass (Jupiter)

0.208 M♃

Density

0.42 g/cm³

Surface Gravity

0.73 g (Earth)

Classification

Planet Type

Neptune-like

ESI Score 0.342

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

#41of 574

top 7.0%

This planet

9.55R⊕

Neptune-like median

6.39R⊕

Nearest-size peers

TOI-954 b 9.55 R⊕ WASP-182 b 9.53 R⊕ WASP-144 b 9.53 R⊕

Metric	Earth	Kepler-1515 b	Jupiter
Radius (R⊕)	1.00	9.55	11.21
Mass (M⊕)	1.00	66.20	317.83
Density (g/cm³)	5.51	0.42	1.33
Surface Gravity (g)	1.00	0.73	2.53
Insolation (S⊕)	1.00	6.02	0.037

Star Catalogue Identifiers

TIC

TIC 417660218

Gaia DR2

Gaia DR2 2129311576952316544

Gaia DR3

Gaia DR3 2129311576952316544

System

Kepler-1515

Percentile among Neptune-like cohort

Radius 9.550 R⊕ · percentile 93 / cohort 574

Mass 66.200 M⊕ · percentile 82 / cohort 574

Orbital period 214.31 d · percentile 90 / cohort 524

Distance 539.32 pc · percentile 58 / cohort 572

ESI 0.342 · percentile 61 / cohort 574

Orbit & Habitability

Orbital Dynamics

Period

214.311 days

Semi-major axis

0.7524 AU

Eccentricity

0.000

Inclination

89.99 °

Year Length

A year here lasts approximately 214.31 Earth days (58.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.7523 AU.

Transit Fingerprint

Depth

0.454 %

Duration

16.173 h

Impact parameter b

0.059

Rp / R★

0.062147

Transit midpoint (BJD)

2,455,169.3313

Photometric dip

Transit produces a flux drop of 4,535 ppm lasting ≈ 16.17 h.

Extended Orbital Architecture

Planet / star radius ratio

0.062147

Semi-major axis / stellar radius

106.691

Impact parameter (b)

0.059

Transit mid-time (BJD)

2,455,169.3313

Angular separation (arcsec)

1.39000

Eq. Temperature

380K

(107 °C)

Insolation (S⊕)

6.02

Earth = 1.00

Earth Similarity (ESI)

0.342

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.

Detection Signatures

Transit photometry

A transit dip has been observed from at least one telescope.

Transit timing variations

Gravitational interactions from neighbours have been detected.

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-1515

Spectral Class

F-type yellow-white

Effective Temperature

6,511 K — hotter than the Sun (5,778 K)

Estimated Age

1.82 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.410 R☉

Stellar Mass

1.300 M☉

Metallicity [Fe/H]

0.07

Extended Stellar Properties

Surface gravity (log g)

4.260 dex

Stellar density

0.510 g/cm³

Metallicity ratio

[Fe/H]

Distance

539.32 parsec

Light-years 1,759.03 ly

V-band magnitude

12.10 mag

Voyager-speed travel 31,020,454 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.826 mas

Total Proper Motion

10.189 mas/yr

PM Right Ascension

-3.00 mas/yr

PM Declination

9.74 mas/yr

Galactic Cartesian (pc)

x = 0.239 · y = -0.623 · z = 0.745

Equatorial (J2000)

RA 290.97391° · Dec 48.17821°

Galactic ℓ, b

79.861° · 14.835°

Ecliptic λ, β

310.970° · 68.654°

HTM-20 index

-391825491