Key parameters at a glance

A radius of 1.30 Earth radii
A mass of 2.24 Earth masses
Surface gravity around 1.33 g
An orbital period of 2.543 days
Semi-major axis 0.0358 AU
Equilibrium temperature 1,319 K (1046 °C)
Distance from Earth 3,422.00 light-years
Earth Similarity Index 0.228
Travel time at Voyager 1 speed 60,346,899 years

Kepler-1098 b Planet Profile

Physical Specs

Radius

1.30 R⊕

Radius (Jupiter)

0.116 R♃

Mass

2.24 M⊕

Mass (Jupiter)

0.007 M♃

Density

5.60 g/cm³

Surface Gravity

1.33 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.228

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

#1090of 1176

top 92.6%

This planet

1.30R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-1568 b 1.30 R⊕ TOI-206 b 1.30 R⊕ Kepler-1254 c 1.30 R⊕

Metric	Earth	Kepler-1098 b	Jupiter
Radius (R⊕)	1.00	1.30	11.21
Mass (M⊕)	1.00	2.24	317.83
Density (g/cm³)	5.51	5.60	1.33
Surface Gravity (g)	1.00	1.33	2.53
Insolation (S⊕)	1.00	995.67	0.037

Star Catalogue Identifiers

TIC

TIC 271763415

Gaia DR2

Gaia DR2 2078019187720711424

Gaia DR3

Gaia DR3 2078019187720711424

System

Kepler-1098

Percentile among Super-Earth cohort

Radius 1.300 R⊕ · percentile 7 / cohort 1176

Mass 2.240 M⊕ · percentile 7 / cohort 1176

Orbital period 2.54 d · percentile 17 / cohort 1164

Distance 1,049.19 pc · percentile 83 / cohort 1171

ESI 0.228 · percentile 18 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

2.543 days

Semi-major axis

0.0358 AU

Eccentricity

0.000

Inclination

88.18 °

Year Length

A year here lasts approximately 2.54 Earth days (0.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0358 AU.

Transit Fingerprint

Depth

0.015 %

Duration

2.749 h

Impact parameter b

0.830

Rp / R★

0.011738

Transit midpoint (BJD)

2,454,965.6793

Photometric dip

Transit produces a flux drop of 152 ppm lasting ≈ 2.75 h.

Extended Orbital Architecture

Planet / star radius ratio

0.011738

Semi-major axis / stellar radius

7.166

Impact parameter (b)

0.830

Transit mid-time (BJD)

2,454,965.6793

Angular separation (arcsec)

0.03410

Eq. Temperature

1,319K

(1046 °C)

Insolation (S⊕)

995.67

Earth = 1.00

Earth Similarity (ESI)

0.228

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-1098

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,794 K — hotter than the Sun (5,778 K)

Estimated Age

3.98 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.990 R☉

Stellar Mass

0.990 M☉

Metallicity [Fe/H]

-0.02

Extended Stellar Properties

Surface gravity (log g)

4.450 dex

Stellar density

0.907 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,049.19 parsec

Light-years 3,422.00 ly

V-band magnitude

14.89 mag

Voyager-speed travel 60,346,899 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.925 mas

Total Proper Motion

18.846 mas/yr

PM Right Ascension

-2.19 mas/yr

PM Declination

-18.72 mas/yr

Galactic Cartesian (pc)

x = 0.314 · y = -0.658 · z = 0.685

Equatorial (J2000)

RA 295.50267° · Dec 43.23270°

Galactic ℓ, b

76.756° · 9.811°

Ecliptic λ, β

313.470° · 62.875°

HTM-20 index

-1342871060