Key parameters at a glance

A radius of 11.65 Earth radii
An orbital period of 3.269 days
Semi-major axis 0.0453 AU
Equilibrium temperature 1,597 K (1324 °C)
Distance from Earth 4,967.36 light-years
Earth Similarity Index 0.022
Travel time at Voyager 1 speed 87,599,316 years

Kepler-490 b Planet Profile

Physical Specs

Radius

11.65 R⊕

Radius (Jupiter)

1.039 R♃

Mass

— M⊕

Mass (Jupiter)

— M♃

Density

— g/cm³

Surface Gravity

— g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.022

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

#1573of 1771

top 88.8%

This planet

11.65R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

K2-30 b 11.65 R⊕ HATS-14 b 11.65 R⊕ WASP-83 b 11.66 R⊕

Metric	Earth	Kepler-490 b	Jupiter
Radius (R⊕)	1.00	11.65	11.21
Mass (M⊕)	1.00	—	317.83
Density (g/cm³)	5.51	—	1.33
Surface Gravity (g)	1.00	—	2.53
Insolation (S⊕)	1.00	1,059.52	0.037

Star Catalogue Identifiers

TIC

TIC 271424111

Gaia DR2

Gaia DR2 2128525460498487424

Gaia DR3

Gaia DR3 2128525460498487424

System

Kepler-490

Percentile among Gas Giant cohort

Radius 11.650 R⊕ · percentile 11 / cohort 1771

Orbital period 3.27 d · percentile 19 / cohort 1533

Distance 1,523.00 pc · percentile 90 / cohort 1759

ESI 0.022 · percentile 0 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

3.269 days

Semi-major axis

0.0453 AU

Eccentricity

0.000

Inclination

89.53 °

Year Length

A year here lasts approximately 3.27 Earth days (0.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0453 AU.

Transit Fingerprint

Depth

1.009 %

Duration

3.453 h

Impact parameter b

0.051

Rp / R★

0.094855

Transit midpoint (BJD)

2,454,970.4817

Photometric dip

Transit produces a flux drop of 10,091 ppm lasting ≈ 3.45 h.

Extended Orbital Architecture

Planet / star radius ratio

0.094855

Semi-major axis / stellar radius

7.934

Impact parameter (b)

0.051

Transit mid-time (BJD)

2,454,970.4817

Angular separation (arcsec)

0.02970

Eq. Temperature

1,597K

(1324 °C)

Insolation (S⊕)

1,059.52

Earth = 1.00

Earth Similarity (ESI)

0.022

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-490

Spectral Class

F-type yellow-white

Effective Temperature

6,045 K — hotter than the Sun (5,778 K)

Estimated Age

3.47 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.120 R☉

Stellar Mass

1.080 M☉

Metallicity [Fe/H]

-0.02

Extended Stellar Properties

Surface gravity (log g)

4.370 dex

Stellar density

0.876 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,523.00 parsec

Light-years 4,967.36 ly

V-band magnitude

14.84 mag

Voyager-speed travel 87,599,316 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.628 mas

Total Proper Motion

8.722 mas/yr

PM Right Ascension

-1.91 mas/yr

PM Declination

-8.51 mas/yr

Galactic Cartesian (pc)

x = 0.289 · y = -0.618 · z = 0.731

Equatorial (J2000)

RA 295.02566° · Dec 46.95595°

Galactic ℓ, b

79.952° · 11.843°

Ecliptic λ, β

316.212° · 66.425°

HTM-20 index

-1136460683