Key parameters at a glance

A radius of 2.76 Earth radii
A mass of 8.05 Earth masses
Surface gravity around 1.06 g
An orbital period of 47.987 days
Semi-major axis 0.2487 AU
Equilibrium temperature 493 K (220 °C)
Distance from Earth 1,775.76 light-years
Earth Similarity Index 0.483
Travel time at Voyager 1 speed 31,315,461 years

Kepler-1458 b Planet Profile

Physical Specs

Radius

2.76 R⊕

Radius (Jupiter)

0.246 R♃

Mass

8.05 M⊕

Mass (Jupiter)

0.025 M♃

Density

2.10 g/cm³

Surface Gravity

1.06 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.483

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

#794of 1978

top 40.1%

This planet

2.76R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-172 e 2.76 R⊕ TOI-1260 c 2.76 R⊕ Kepler-819 b 2.76 R⊕

Metric	Earth	Kepler-1458 b	Jupiter
Radius (R⊕)	1.00	2.76	11.21
Mass (M⊕)	1.00	8.05	317.83
Density (g/cm³)	5.51	2.10	1.33
Surface Gravity (g)	1.00	1.06	2.53
Insolation (S⊕)	1.00	8.29	0.037

Star Catalogue Identifiers

TIC

TIC 258349285

Gaia DR2

Gaia DR2 2104354690224334592

Gaia DR3

Gaia DR3 2104354690224334592

System

Kepler-1458

Percentile among Sub-Neptune cohort

Radius 2.760 R⊕ · percentile 60 / cohort 1978

Mass 8.050 M⊕ · percentile 55 / cohort 1978

Orbital period 47.99 d · percentile 85 / cohort 1946

Distance 544.45 pc · percentile 49 / cohort 1975

ESI 0.483 · percentile 68 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

47.987 days

Semi-major axis

0.2487 AU

Eccentricity

0.000

Inclination

88.67 °

Year Length

A year here lasts approximately 47.99 Earth days (13.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2487 AU.

Transit Fingerprint

Depth

0.091 %

Duration

4.756 h

Impact parameter b

0.053

Rp / R★

0.027347

Transit midpoint (BJD)

2,454,993.6508

Photometric dip

Transit produces a flux drop of 913 ppm lasting ≈ 4.76 h.

Extended Orbital Architecture

Planet / star radius ratio

0.027347

Semi-major axis / stellar radius

79.090

Impact parameter (b)

0.053

Transit mid-time (BJD)

2,454,993.6508

Angular separation (arcsec)

0.45700

Eq. Temperature

493K

(220 °C)

Insolation (S⊕)

8.29

Earth = 1.00

Earth Similarity (ESI)

0.483

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-1458

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,653 K — cooler than the Sun (5,778 K)

Estimated Age

4.17 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.940 R☉

Stellar Mass

0.960 M☉

Metallicity [Fe/H]

0.02

Extended Stellar Properties

Surface gravity (log g)

4.480 dex

Stellar density

1.640 g/cm³

Metallicity ratio

[Fe/H]

Distance

544.45 parsec

Light-years 1,775.76 ly

V-band magnitude

14.43 mag

Voyager-speed travel 31,315,461 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.808 mas

Total Proper Motion

10.578 mas/yr

PM Right Ascension

-0.99 mas/yr

PM Declination

-10.53 mas/yr

Galactic Cartesian (pc)

x = 0.172 · y = -0.734 · z = 0.657

Equatorial (J2000)

RA 283.21160° · Dec 41.03801°

Galactic ℓ, b

70.797° · 17.173°

Ecliptic λ, β

292.674° · 63.441°

HTM-20 index

-843743189