Key parameters at a glance

A radius of 2.45 Earth radii
A mass of 6.57 Earth masses
Surface gravity around 1.09 g
An orbital period of 4.302 days
Semi-major axis 0.0497 AU
Equilibrium temperature 1,009 K (736 °C)
Distance from Earth 1,853.05 light-years
Earth Similarity Index 0.250
Travel time at Voyager 1 speed 32,678,514 years

Kepler-570 b Planet Profile

Physical Specs

Radius

2.45 R⊕

Radius (Jupiter)

0.219 R♃

Mass

6.57 M⊕

Mass (Jupiter)

0.021 M♃

Density

2.45 g/cm³

Surface Gravity

1.09 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.250

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

#1260of 1978

top 63.7%

This planet

2.45R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-1176 b 2.45 R⊕ TOI-2274 b 2.45 R⊕ Kepler-243 b 2.45 R⊕

Metric	Earth	Kepler-570 b	Jupiter
Radius (R⊕)	1.00	2.45	11.21
Mass (M⊕)	1.00	6.57	317.83
Density (g/cm³)	5.51	2.45	1.33
Surface Gravity (g)	1.00	1.09	2.53
Insolation (S⊕)	1.00	214.04	0.037

Star Catalogue Identifiers

TIC

TIC 407001624

Gaia DR2

Gaia DR2 2129531822874416640

Gaia DR3

Gaia DR3 2129531822874416640

System

Kepler-570

Percentile among Sub-Neptune cohort

Radius 2.450 R⊕ · percentile 36 / cohort 1978

Mass 6.570 M⊕ · percentile 34 / cohort 1978

Orbital period 4.30 d · percentile 10 / cohort 1946

Distance 568.15 pc · percentile 51 / cohort 1975

ESI 0.250 · percentile 16 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

4.302 days

Semi-major axis

0.0497 AU

Eccentricity

0.000

Inclination

87.69 °

Year Length

A year here lasts approximately 4.30 Earth days (1.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0497 AU.

Transit Fingerprint

Depth

0.076 %

Duration

2.070 h

Impact parameter b

0.179

Rp / R★

0.024992

Transit midpoint (BJD)

2,455,005.3103

Photometric dip

Transit produces a flux drop of 761 ppm lasting ≈ 2.07 h.

Extended Orbital Architecture

Planet / star radius ratio

0.024992

Semi-major axis / stellar radius

16.036

Impact parameter (b)

0.179

Transit mid-time (BJD)

2,455,005.3103

Angular separation (arcsec)

0.08750

Eq. Temperature

1,009K

(736 °C)

Insolation (S⊕)

214.04

Earth = 1.00

Earth Similarity (ESI)

0.250

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-570

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,496 K — cooler than the Sun (5,778 K)

Estimated Age

5.01 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.900 R☉

Stellar Mass

0.930 M☉

Metallicity [Fe/H]

0.06

Extended Stellar Properties

Surface gravity (log g)

4.500 dex

Stellar density

4.216 g/cm³

Metallicity ratio

[Fe/H]

Distance

568.15 parsec

Light-years 1,853.05 ly

V-band magnitude

14.45 mag

Voyager-speed travel 32,678,514 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.731 mas

Total Proper Motion

6.194 mas/yr

PM Right Ascension

1.19 mas/yr

PM Declination

-6.08 mas/yr

Galactic Cartesian (pc)

x = 0.230 · y = -0.617 · z = 0.752

Equatorial (J2000)

RA 290.43761° · Dec 48.79186°

Galactic ℓ, b

80.291° · 15.410°

Ecliptic λ, β

310.730° · 69.358°

HTM-20 index

399607929