Key parameters at a glance

A radius of 1.29 Earth radii
A mass of 2.21 Earth masses
Surface gravity around 1.33 g
An orbital period of 6.942 days
Semi-major axis 0.0743 AU
Equilibrium temperature 1,003 K (730 °C)
Distance from Earth 4,514.52 light-years
Earth Similarity Index 0.309
Travel time at Voyager 1 speed 79,613,571 years

Kepler-1574 b Planet Profile

Physical Specs

Radius

1.29 R⊕

Radius (Jupiter)

0.115 R♃

Mass

2.21 M⊕

Mass (Jupiter)

0.007 M♃

Density

5.66 g/cm³

Surface Gravity

1.33 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.309

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

#1100of 1176

top 93.5%

This planet

1.29R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-211 c 1.29 R⊕ Kepler-312 b 1.29 R⊕ Kepler-173 b 1.29 R⊕

Metric	Earth	Kepler-1574 b	Jupiter
Radius (R⊕)	1.00	1.29	11.21
Mass (M⊕)	1.00	2.21	317.83
Density (g/cm³)	5.51	5.66	1.33
Surface Gravity (g)	1.00	1.33	2.53
Insolation (S⊕)	1.00	289.78	0.037

Star Catalogue Identifiers

TIC

TIC 26583108

Gaia DR2

Gaia DR2 2129858412187969024

Gaia DR3

Gaia DR3 2129858412187969024

System

Kepler-1574

Percentile among Super-Earth cohort

Radius 1.290 R⊕ · percentile 6 / cohort 1176

Mass 2.210 M⊕ · percentile 6 / cohort 1176

Orbital period 6.94 d · percentile 52 / cohort 1164

Distance 1,384.16 pc · percentile 93 / cohort 1171

ESI 0.309 · percentile 39 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

6.942 days

Semi-major axis

0.0743 AU

Eccentricity

0.000

Inclination

87.95 °

Year Length

A year here lasts approximately 6.94 Earth days (1.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0743 AU.

Transit Fingerprint

Depth

0.016 %

Duration

3.390 h

Impact parameter b

0.343

Rp / R★

0.011298

Transit midpoint (BJD)

2,454,968.9598

Photometric dip

Transit produces a flux drop of 161 ppm lasting ≈ 3.39 h.

Extended Orbital Architecture

Planet / star radius ratio

0.011298

Semi-major axis / stellar radius

13.520

Impact parameter (b)

0.343

Transit mid-time (BJD)

2,454,968.9598

Angular separation (arcsec)

0.05370

Eq. Temperature

1,003K

(730 °C)

Insolation (S⊕)

289.78

Earth = 1.00

Earth Similarity (ESI)

0.309

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-1574

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,892 K — hotter than the Sun (5,778 K)

Estimated Age

3.80 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.080 R☉

Stellar Mass

1.060 M☉

Metallicity [Fe/H]

0.08

Extended Stellar Properties

Surface gravity (log g)

4.400 dex

Stellar density

0.969 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,384.16 parsec

Light-years 4,514.52 ly

V-band magnitude

15.19 mag

Voyager-speed travel 79,613,571 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.694 mas

Total Proper Motion

4.615 mas/yr

PM Right Ascension

2.50 mas/yr

PM Declination

3.88 mas/yr

Galactic Cartesian (pc)

x = 0.244 · y = -0.600 · z = 0.762

Equatorial (J2000)

RA 292.15867° · Dec 49.63779°

Galactic ℓ, b

81.569° · 14.733°

Ecliptic λ, β

314.654° · 69.664°

HTM-20 index

748604989