Key parameters at a glance

A radius of 3.27 Earth radii
A mass of 10.70 Earth masses
Surface gravity around 1.00 g
An orbital period of 29.911 days
Semi-major axis 0.1790 AU
Equilibrium temperature 541 K (268 °C)
Distance from Earth 2,014.18 light-years
Earth Similarity Index 0.415
Travel time at Voyager 1 speed 35,519,998 years

Kepler-576 b Planet Profile

Physical Specs

Radius

3.27 R⊕

Radius (Jupiter)

0.292 R♃

Mass

10.70 M⊕

Mass (Jupiter)

0.034 M♃

Density

1.68 g/cm³

Surface Gravity

1.00 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.415

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

#297of 1978

top 15.0%

This planet

3.27R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

TOI-2076 d 3.27 R⊕ TOI-1117 d 3.27 R⊕ Kepler-1990 b 3.27 R⊕

Metric	Earth	Kepler-576 b	Jupiter
Radius (R⊕)	1.00	3.27	11.21
Mass (M⊕)	1.00	10.70	317.83
Density (g/cm³)	5.51	1.68	1.33
Surface Gravity (g)	1.00	1.00	2.53
Insolation (S⊕)	1.00	16.82	0.037

Star Catalogue Identifiers

TIC

TIC 139036554

Gaia DR2

Gaia DR2 2052140601018026496

Gaia DR3

Gaia DR3 2052140601018026496

System

Kepler-576

Percentile among Sub-Neptune cohort

Radius 3.270 R⊕ · percentile 85 / cohort 1978

Mass 10.700 M⊕ · percentile 78 / cohort 1978

Orbital period 29.91 d · percentile 73 / cohort 1946

Distance 617.55 pc · percentile 54 / cohort 1975

ESI 0.415 · percentile 55 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

29.911 days

Semi-major axis

0.1790 AU

Eccentricity

0.000

Inclination

89.93 °

Year Length

A year here lasts approximately 29.91 Earth days (8.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1790 AU.

Transit Fingerprint

Depth

0.094 %

Duration

6.836 h

Impact parameter b

0.680

Rp / R★

0.030525

Transit midpoint (BJD)

2,455,027.7070

Photometric dip

Transit produces a flux drop of 942 ppm lasting ≈ 6.84 h.

Extended Orbital Architecture

Planet / star radius ratio

0.030525

Semi-major axis / stellar radius

35.310

Impact parameter (b)

0.680

Transit mid-time (BJD)

2,455,027.7070

Angular separation (arcsec)

0.29000

Eq. Temperature

541K

(268 °C)

Insolation (S⊕)

16.82

Earth = 1.00

Earth Similarity (ESI)

0.415

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-576

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,672 K — cooler than the Sun (5,778 K)

Estimated Age

4.47 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.970 R☉

Stellar Mass

0.990 M☉

Metallicity [Fe/H]

0.09

Extended Stellar Properties

Surface gravity (log g)

4.460 dex

Stellar density

0.931 g/cm³

Metallicity ratio

[Fe/H]

Distance

617.55 parsec

Light-years 2,014.18 ly

V-band magnitude

14.63 mag

Voyager-speed travel 35,519,998 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.591 mas

Total Proper Motion

6.440 mas/yr

PM Right Ascension

-4.48 mas/yr

PM Declination

-4.63 mas/yr

Galactic Cartesian (pc)

x = 0.332 · y = -0.707 · z = 0.625

Equatorial (J2000)

RA 295.18289° · Dec 38.65420°

Galactic ℓ, b

72.565° · 7.844°

Ecliptic λ, β

309.718° · 58.670°

HTM-20 index

-1889364838