Key parameters at a glance

A mass of 344.00 Earth masses
An orbital period of 789.000 days
Distance from Earth 1,307.58 light-years
Travel time at Voyager 1 speed 23,059,211 years

1 sibling around Kepler-97

Kepler-97 c shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
Kepler-97 b	Super-Earth	1.48	3.51	2.587	1,328	2014
Kepler-97 c this	Unclassified	—	344.00	789.000	—	2014

Kepler-97 c Planet Profile

Physical Specs

Radius

— R⊕

Radius (Jupiter)

— R♃

Mass

344.00 M⊕

Mass (Jupiter)

1.080 M♃

Density

— g/cm³

Surface Gravity

— g (Earth)

Classification

Planet Type

Unclassified

ESI Score —

HZ Position Unknown

Controversial No

Discovery

Year 2014

Method Radial Velocity

Facility W. M. Keck Observatory

Telescope 10 m Keck I Telescope

Metric	Earth	Kepler-97 c	Jupiter
Radius (R⊕)	1.00	—	11.21
Mass (M⊕)	1.00	344.00	317.83
Density (g/cm³)	5.51	—	1.33
Surface Gravity (g)	1.00	—	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	344.000 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 399951991

Gaia DR2

Gaia DR2 2131216137248338304

Gaia DR3

Gaia DR3 2131216137248338304

System

Kepler-97

Percentile among Unclassified cohort

Mass 344.000 M⊕ · percentile 5 / cohort 42

Orbital period 789.00 d · percentile 74 / cohort 43

Distance 400.91 pc · percentile 93 / cohort 43

Orbit & Habitability

Orbital Dynamics

Period

789.000 days

Semi-major axis

— AU

Eccentricity

—

Inclination

— °

Year Length

A year here lasts about 2.16 Earth years.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

—

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Marcy et al. 2014

Instrument

HIRES Spectrometer

Publication

2014-02

Observation locale

Ground

Discovery cohort

Planets confirmed in 2014 at W. M. Keck Observatory (11 shown).

HAT-P-44 c · Gas Giant Kepler-94 c · Gas Giant HD 4203 c · Gas Giant Kepler-48 e · Gas Giant Kepler-407 c · Gas Giant HD 10442 b · Gas Giant HD 5319 c · Gas Giant GJ 849 c · Gas Giant HD 75784 b · Gas Giant Kepler-25 d · Gas Giant Kepler-93 c · Unclassified

Host System: Kepler-97

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,779 K — hotter than the Sun (5,778 K)

Estimated Age

8.42 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.980 R☉

Stellar Mass

0.940 M☉

Metallicity [Fe/H]

-0.20

Extended Stellar Properties

Surface gravity (log g)

4.430 dex

Stellar density

1.530 g/cm³

Systemic radial velocity

3.14 km/s

Rotational v·sin i

0.50 km/s

Metallicity ratio

[Fe/H]

Distance

400.91 parsec

Light-years 1,307.58 ly

V-band magnitude

12.99 mag

Voyager-speed travel 23,059,211 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

2.466 mas

Total Proper Motion

24.825 mas/yr

PM Right Ascension

-13.17 mas/yr

PM Declination

-21.04 mas/yr

Galactic Cartesian (pc)

x = 0.197 · y = -0.630 · z = 0.751

Equatorial (J2000)

RA 287.32653° · Dec 48.67334°

Galactic ℓ, b

79.351° · 17.257°

Ecliptic λ, β

305.112° · 70.008°

HTM-20 index

-703157730