Key parameters at a glance

A radius of 6.04 Earth radii
A mass of 30.40 Earth masses
Surface gravity around 0.83 g
An orbital period of 3.573 days
Semi-major axis 0.0457 AU
Equilibrium temperature 1,210 K (937 °C)
Distance from Earth 4,213.87 light-years
Earth Similarity Index 0.138
Travel time at Voyager 1 speed 74,311,598 years

Kepler-497 b Planet Profile

Physical Specs

Radius

6.04 R⊕

Radius (Jupiter)

0.539 R♃

Mass

30.40 M⊕

Mass (Jupiter)

0.096 M♃

Density

0.76 g/cm³

Surface Gravity

0.83 g (Earth)

Classification

Planet Type

Neptune-like

ESI Score 0.138

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

#281of 574

top 48.8%

This planet

6.04R⊕

Neptune-like median

6.39R⊕

Nearest-size peers

WASP-156 b 6.03 R⊕ TOI-2498 b 6.06 R⊕ Kepler-1625 b 6.06 R⊕

Metric	Earth	Kepler-497 b	Jupiter
Radius (R⊕)	1.00	6.04	11.21
Mass (M⊕)	1.00	30.40	317.83
Density (g/cm³)	5.51	0.76	1.33
Surface Gravity (g)	1.00	0.83	2.53
Insolation (S⊕)	1.00	1,129.27	0.037

Star Catalogue Identifiers

TIC

TIC 122605766

Gaia DR2

Gaia DR2 2052865419692829056

Gaia DR3

Gaia DR3 2052865419692829056

System

Kepler-497

Percentile among Neptune-like cohort

Radius 6.040 R⊕ · percentile 51 / cohort 574

Mass 30.400 M⊕ · percentile 50 / cohort 574

Orbital period 3.57 d · percentile 9 / cohort 524

Distance 1,291.98 pc · percentile 81 / cohort 572

ESI 0.138 · percentile 10 / cohort 574

Orbit & Habitability

Orbital Dynamics

Period

3.573 days

Semi-major axis

0.0457 AU

Eccentricity

0.000

Inclination

89.69 °

Year Length

A year here lasts approximately 3.57 Earth days (1.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0457 AU.

Transit Fingerprint

Depth

0.298 %

Duration

2.884 h

Impact parameter b

0.260

Rp / R★

0.050487

Transit midpoint (BJD)

2,454,967.9343

Photometric dip

Transit produces a flux drop of 2,975 ppm lasting ≈ 2.88 h.

Extended Orbital Architecture

Planet / star radius ratio

0.050487

Semi-major axis / stellar radius

9.951

Impact parameter (b)

0.260

Transit mid-time (BJD)

2,454,967.9343

Angular separation (arcsec)

0.03540

Eq. Temperature

1,210K

(937 °C)

Insolation (S⊕)

1,129.27

Earth = 1.00

Earth Similarity (ESI)

0.138

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-497

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,834 K — hotter than the Sun (5,778 K)

Estimated Age

3.55 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.110 R☉

Stellar Mass

1.090 M☉

Metallicity [Fe/H]

0.24

Extended Stellar Properties

Surface gravity (log g)

4.390 dex

Stellar density

1.436 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,291.98 parsec

Light-years 4,213.87 ly

V-band magnitude

14.95 mag

Voyager-speed travel 74,311,598 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.632 mas

Total Proper Motion

16.722 mas/yr

PM Right Ascension

8.63 mas/yr

PM Declination

-14.32 mas/yr

Galactic Cartesian (pc)

x = 0.276 · y = -0.727 · z = 0.628

Equatorial (J2000)

RA 290.76596° · Dec 38.92795°

Galactic ℓ, b

71.208° · 11.027°

Ecliptic λ, β

303.451° · 59.978°

HTM-20 index

1917402933