Key parameters at a glance

A radius of 2.11 Earth radii
A mass of 5.10 Earth masses
Surface gravity around 1.15 g
An orbital period of 56.645 days
Semi-major axis 0.3357 AU
Equilibrium temperature 733 K (460 °C)
Distance from Earth 3,268.15 light-years
Earth Similarity Index 0.368
Travel time at Voyager 1 speed 57,633,793 years

Kepler-1580 b Planet Profile

Physical Specs

Radius

2.11 R⊕

Radius (Jupiter)

0.188 R♃

Mass

5.10 M⊕

Mass (Jupiter)

0.016 M♃

Density

2.98 g/cm³

Surface Gravity

1.15 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.368

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

#1806of 1978

top 91.3%

This planet

2.11R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

61 Vir b 2.11 R⊕ TOI-1238 c 2.11 R⊕ Kepler-1484 b 2.11 R⊕

Metric	Earth	Kepler-1580 b	Jupiter
Radius (R⊕)	1.00	2.11	11.21
Mass (M⊕)	1.00	5.10	317.83
Density (g/cm³)	5.51	2.98	1.33
Surface Gravity (g)	1.00	1.15	2.53
Insolation (S⊕)	1.00	83.09	0.037

Star Catalogue Identifiers

TIC

TIC 120688631

Gaia DR2

Gaia DR2 2103904302775007872

Gaia DR3

Gaia DR3 2103904302775007872

System

Kepler-1580

Percentile among Sub-Neptune cohort

Radius 2.110 R⊕ · percentile 8 / cohort 1978

Mass 5.100 M⊕ · percentile 9 / cohort 1978

Orbital period 56.64 d · percentile 88 / cohort 1946

Distance 1,002.02 pc · percentile 78 / cohort 1975

ESI 0.368 · percentile 45 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

56.645 days

Semi-major axis

0.3357 AU

Eccentricity

0.000

Inclination

88.47 °

Year Length

A year here lasts approximately 56.64 Earth days (15.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.3357 AU.

Transit Fingerprint

Depth

0.010 %

Duration

15.079 h

Impact parameter b

0.368

Rp / R★

0.009079

Transit midpoint (BJD)

2,454,971.7829

Photometric dip

Transit produces a flux drop of 96 ppm lasting ≈ 15.08 h.

Extended Orbital Architecture

Planet / star radius ratio

0.009079

Semi-major axis / stellar radius

26.970

Impact parameter (b)

0.368

Transit mid-time (BJD)

2,454,971.7829

Angular separation (arcsec)

0.33500

Eq. Temperature

733K

(460 °C)

Insolation (S⊕)

83.09

Earth = 1.00

Earth Similarity (ESI)

0.368

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-1580

Spectral Class

F-type yellow-white

Effective Temperature

6,228 K — hotter than the Sun (5,778 K)

Estimated Age

2.75 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

2.150 R☉

Stellar Mass

1.470 M☉

Metallicity [Fe/H]

0.12

Extended Stellar Properties

Surface gravity (log g)

3.940 dex

Stellar density

0.110 g/cm³

Systemic radial velocity

-9.01 km/s

Metallicity ratio

[Fe/H]

Distance

1,002.02 parsec

Light-years 3,268.15 ly

V-band magnitude

12.64 mag

Voyager-speed travel 57,633,793 yr

Multi-band Host Photometry — 15 bands

Astrometric Data

Parallax

0.969 mas

Total Proper Motion

7.517 mas/yr

PM Right Ascension

-0.19 mas/yr

PM Declination

-7.51 mas/yr

Galactic Cartesian (pc)

x = 0.206 · y = -0.722 · z = 0.661

Equatorial (J2000)

RA 285.96871° · Dec 41.36353°

Galactic ℓ, b

71.924° · 15.373°

Ecliptic λ, β

297.348° · 63.294°

HTM-20 index

1702984610