Key parameters at a glance

A radius of 1.33 Earth radii
A mass of 2.33 Earth masses
Surface gravity around 1.32 g
An orbital period of 68.886 days
Semi-major axis 0.3144 AU
Equilibrium temperature 501 K (228 °C)
Distance from Earth 1,678.15 light-years
Earth Similarity Index 0.613
Travel time at Voyager 1 speed 29,594,189 years

Kepler-1253 b Planet Profile

Physical Specs

Radius

1.33 R⊕

Radius (Jupiter)

0.119 R♃

Mass

2.33 M⊕

Mass (Jupiter)

0.007 M♃

Density

5.44 g/cm³

Surface Gravity

1.32 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.613

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

#1022of 1176

top 86.8%

This planet

1.33R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-393 c 1.33 R⊕ Kepler-286 d 1.33 R⊕ Kepler-220 e 1.33 R⊕

Metric	Earth	Kepler-1253 b	Jupiter
Radius (R⊕)	1.00	1.33	11.21
Mass (M⊕)	1.00	2.33	317.83
Density (g/cm³)	5.51	5.44	1.33
Surface Gravity (g)	1.00	1.32	2.53
Insolation (S⊕)	1.00	21.62	0.037

Star Catalogue Identifiers

TIC

TIC 164557694

Gaia DR2

Gaia DR2 2131628282308860288

Gaia DR3

Gaia DR3 2131628282308860288

System

Kepler-1253

Percentile among Super-Earth cohort

Radius 1.330 R⊕ · percentile 11 / cohort 1176

Mass 2.330 M⊕ · percentile 11 / cohort 1176

Orbital period 68.89 d · percentile 98 / cohort 1164

Distance 514.52 pc · percentile 48 / cohort 1171

ESI 0.613 · percentile 81 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

68.886 days

Semi-major axis

0.3144 AU

Eccentricity

0.000

Inclination

89.84 °

Year Length

A year here lasts approximately 68.89 Earth days (18.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.3144 AU.

Transit Fingerprint

Depth

0.014 %

Duration

5.950 h

Impact parameter b

0.241

Rp / R★

0.011343

Transit midpoint (BJD)

2,454,993.2980

Photometric dip

Transit produces a flux drop of 145 ppm lasting ≈ 5.95 h.

Extended Orbital Architecture

Planet / star radius ratio

0.011343

Semi-major axis / stellar radius

76.900

Impact parameter (b)

0.241

Transit mid-time (BJD)

2,454,993.2980

Angular separation (arcsec)

0.61100

Eq. Temperature

501K

(228 °C)

Insolation (S⊕)

21.62

Earth = 1.00

Earth Similarity (ESI)

0.613

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-1253

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,850 K — hotter than the Sun (5,778 K)

Estimated Age

7.08 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.100 R☉

Stellar Mass

0.970 M☉

Metallicity [Fe/H]

-0.14

Extended Stellar Properties

Surface gravity (log g)

4.330 dex

Stellar density

0.270 g/cm³

Systemic radial velocity

-44.55 km/s

Metallicity ratio

[Fe/H]

Distance

514.52 parsec

Light-years 1,678.15 ly

V-band magnitude

12.59 mag

Voyager-speed travel 29,594,189 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.915 mas

Total Proper Motion

21.803 mas/yr

PM Right Ascension

9.74 mas/yr

PM Declination

-19.51 mas/yr

Galactic Cartesian (pc)

x = 0.162 · y = -0.654 · z = 0.739

Equatorial (J2000)

RA 283.88522° · Dec 47.63715°

Galactic ℓ, b

77.477° · 19.038°

Ecliptic λ, β

297.831° · 69.738°

HTM-20 index

-920116482