Key parameters at a glance

A radius of 3.54 Earth radii
A mass of 12.30 Earth masses
Surface gravity around 0.98 g
An orbital period of 87.973 days
Semi-major axis 0.3977 AU
Equilibrium temperature 446 K (173 °C)
Distance from Earth 2,612.09 light-years
Earth Similarity Index 0.476
Travel time at Voyager 1 speed 46,064,184 years

Kepler-1316 b Planet Profile

Physical Specs

Radius

3.54 R⊕

Radius (Jupiter)

0.316 R♃

Mass

12.30 M⊕

Mass (Jupiter)

0.039 M♃

Density

1.52 g/cm³

Surface Gravity

0.98 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.476

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

#158of 1978

top 7.9%

This planet

3.54R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-802 b 3.54 R⊕ Kepler-1524 b 3.54 R⊕ HIP 41378 d 3.54 R⊕

Metric	Earth	Kepler-1316 b	Jupiter
Radius (R⊕)	1.00	3.54	11.21
Mass (M⊕)	1.00	12.30	317.83
Density (g/cm³)	5.51	1.52	1.33
Surface Gravity (g)	1.00	0.98	2.53
Insolation (S⊕)	1.00	10.71	0.037

Star Catalogue Identifiers

TIC

TIC 171502232

Gaia DR2

Gaia DR2 2073591420052466048

Gaia DR3

Gaia DR3 2073591420052466048

System

Kepler-1316

Percentile among Sub-Neptune cohort

Radius 3.540 R⊕ · percentile 92 / cohort 1978

Mass 12.300 M⊕ · percentile 85 / cohort 1978

Orbital period 87.97 d · percentile 93 / cohort 1946

Distance 800.87 pc · percentile 65 / cohort 1975

ESI 0.476 · percentile 67 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

87.973 days

Semi-major axis

0.3977 AU

Eccentricity

0.000

Inclination

89.98 °

Year Length

A year here lasts approximately 87.97 Earth days (24.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.3977 AU.

Transit Fingerprint

Depth

0.087 %

Duration

14.690 h

Impact parameter b

0.080

Rp / R★

0.029203

Transit midpoint (BJD)

2,455,001.2892

Photometric dip

Transit produces a flux drop of 867 ppm lasting ≈ 14.69 h.

Extended Orbital Architecture

Planet / star radius ratio

0.029203

Semi-major axis / stellar radius

47.140

Impact parameter (b)

0.080

Transit mid-time (BJD)

2,455,001.2892

Angular separation (arcsec)

0.49700

Eq. Temperature

446K

(173 °C)

Insolation (S⊕)

10.71

Earth = 1.00

Earth Similarity (ESI)

0.476

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-1316

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,884 K — hotter than the Sun (5,778 K)

Estimated Age

5.13 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.120 R☉

Stellar Mass

1.040 M☉

Metallicity [Fe/H]

0.03

Extended Stellar Properties

Surface gravity (log g)

4.360 dex

Stellar density

0.253 g/cm³

Metallicity ratio

[Fe/H]

Distance

800.87 parsec

Light-years 2,612.09 ly

V-band magnitude

14.12 mag

Voyager-speed travel 46,064,184 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.220 mas

Total Proper Motion

17.473 mas/yr

PM Right Ascension

-8.80 mas/yr

PM Declination

-15.09 mas/yr

Galactic Cartesian (pc)

x = 0.368 · y = -0.668 · z = 0.647

Equatorial (J2000)

RA 298.83583° · Dec 40.29307°

Galactic ℓ, b

75.404° · 6.202°

Ecliptic λ, β

315.953° · 59.217°

HTM-20 index

-548509771