Key parameters at a glance

A radius of 2.06 Earth radii
A mass of 4.90 Earth masses
Surface gravity around 1.15 g
An orbital period of 47.313 days
Semi-major axis 0.2788 AU
Equilibrium temperature 658 K (385 °C)
Distance from Earth 4,546.06 light-years
Earth Similarity Index 0.413
Travel time at Voyager 1 speed 80,169,767 years

Kepler-1615 b Planet Profile

Physical Specs

Radius

2.06 R⊕

Radius (Jupiter)

0.184 R♃

Mass

4.90 M⊕

Mass (Jupiter)

0.015 M♃

Density

3.08 g/cm³

Surface Gravity

1.15 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.413

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

#1875of 1978

top 94.7%

This planet

2.06R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-377 c 2.06 R⊕ TOI-1670 b 2.06 R⊕ K2-117 c 2.06 R⊕

Metric	Earth	Kepler-1615 b	Jupiter
Radius (R⊕)	1.00	2.06	11.21
Mass (M⊕)	1.00	4.90	317.83
Density (g/cm³)	5.51	3.08	1.33
Surface Gravity (g)	1.00	1.15	2.53
Insolation (S⊕)	1.00	31.17	0.037

Star Catalogue Identifiers

TIC

TIC 158217620

Gaia DR2

Gaia DR2 2105456160358298880

Gaia DR3

Gaia DR3 2105456160358298880

System

Kepler-1615

Percentile among Sub-Neptune cohort

Radius 2.060 R⊕ · percentile 5 / cohort 1978

Mass 4.900 M⊕ · percentile 6 / cohort 1978

Orbital period 47.31 d · percentile 84 / cohort 1946

Distance 1,393.83 pc · percentile 91 / cohort 1975

ESI 0.413 · percentile 55 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

47.313 days

Semi-major axis

0.2788 AU

Eccentricity

0.000

Inclination

84.51 °

Year Length

A year here lasts approximately 47.31 Earth days (13.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2788 AU.

Transit Fingerprint

Depth

0.022 %

Duration

10.652 h

Impact parameter b

0.966

Rp / R★

0.017710

Transit midpoint (BJD)

2,454,979.3247

Photometric dip

Transit produces a flux drop of 217 ppm lasting ≈ 10.65 h.

Extended Orbital Architecture

Planet / star radius ratio

0.017710

Semi-major axis / stellar radius

10.110

Impact parameter (b)

0.966

Transit mid-time (BJD)

2,454,979.3247

Angular separation (arcsec)

0.20000

Eq. Temperature

658K

(385 °C)

Insolation (S⊕)

31.17

Earth = 1.00

Earth Similarity (ESI)

0.413

0 = alien, 1 = Earth-identical

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

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-1615

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,865 K — hotter than the Sun (5,778 K)

Estimated Age

3.89 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.050 R☉

Stellar Mass

1.040 M☉

Metallicity [Fe/H]

0.06

Extended Stellar Properties

Surface gravity (log g)

4.420 dex

Stellar density

0.011 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,393.83 parsec

Light-years 4,546.06 ly

V-band magnitude

14.60 mag

Voyager-speed travel 80,169,767 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.689 mas

Total Proper Motion

10.052 mas/yr

PM Right Ascension

-4.25 mas/yr

PM Declination

-9.11 mas/yr

Galactic Cartesian (pc)

x = 0.209 · y = -0.711 · z = 0.672

Equatorial (J2000)

RA 286.35921° · Dec 42.22740°

Galactic ℓ, b

72.867° · 15.440°

Ecliptic λ, β

298.470° · 64.058°

HTM-20 index

1273501262