Key parameters at a glance

A radius of 0.97 Earth radii
A mass of 0.87 Earth masses
Surface gravity around 0.93 g
An orbital period of 1.682 days
Semi-major axis 0.0283 AU
Equilibrium temperature 1,790 K (1517 °C)
Distance from Earth 4,694.92 light-years
Earth Similarity Index 0.165
Travel time at Voyager 1 speed 82,794,870 years

Kepler-1297 b Planet Profile

Physical Specs

Radius

0.97 R⊕

Radius (Jupiter)

0.087 R♃

Mass

0.87 M⊕

Mass (Jupiter)

0.003 M♃

Density

5.24 g/cm³

Surface Gravity

0.93 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.165

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

#362of 570

top 63.3%

This planet

0.97R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-1443 b 0.97 R⊕ Kepler-1285 b 0.97 R⊕ Kepler-1293 b 0.97 R⊕

Metric	Earth	Kepler-1297 b	Jupiter
Radius (R⊕)	1.00	0.97	11.21
Mass (M⊕)	1.00	0.87	317.83
Density (g/cm³)	5.51	5.24	1.33
Surface Gravity (g)	1.00	0.93	2.53
Insolation (S⊕)	1.00	2,760.59	0.037

Star Catalogue Identifiers

TIC

TIC 159225841

Gaia DR2

Gaia DR2 2127836719542510848

Gaia DR3

Gaia DR3 2127836719542510848

System

Kepler-1297

Percentile among Rocky Terrestrial cohort

Radius 0.970 R⊕ · percentile 36 / cohort 570

Mass 0.871 M⊕ · percentile 32 / cohort 570

Orbital period 1.68 d · percentile 19 / cohort 567

Distance 1,439.47 pc · percentile 98 / cohort 566

ESI 0.165 · percentile 7 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

1.682 days

Semi-major axis

0.0283 AU

Eccentricity

0.000

Inclination

84.06 °

Year Length

A year here lasts approximately 1.68 Earth days (0.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0283 AU.

Transit Fingerprint

Depth

0.008 %

Duration

3.000 h

Impact parameter b

0.831

Rp / R★

0.008654

Transit midpoint (BJD)

2,454,966.0818

Photometric dip

Transit produces a flux drop of 83 ppm lasting ≈ 3.00 h.

Extended Orbital Architecture

Planet / star radius ratio

0.008654

Semi-major axis / stellar radius

4.338

Impact parameter (b)

0.831

Transit mid-time (BJD)

2,454,966.0818

Angular separation (arcsec)

0.01970

Eq. Temperature

1,790K

(1517 °C)

Insolation (S⊕)

2,760.59

Earth = 1.00

Earth Similarity (ESI)

0.165

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-1297

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,818 K — hotter than the Sun (5,778 K)

Estimated Age

4.17 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.990 R☉

Stellar Mass

0.990 M☉

Metallicity [Fe/H]

-0.04

Extended Stellar Properties

Surface gravity (log g)

4.450 dex

Stellar density

0.546 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,439.47 parsec

Light-years 4,694.92 ly

V-band magnitude

14.87 mag

Voyager-speed travel 82,794,870 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.666 mas

Total Proper Motion

11.986 mas/yr

PM Right Ascension

-10.90 mas/yr

PM Declination

-4.98 mas/yr

Galactic Cartesian (pc)

x = 0.233 · y = -0.641 · z = 0.732

Equatorial (J2000)

RA 289.95644° · Dec 47.02035°

Galactic ℓ, b

78.477° · 14.989°

Ecliptic λ, β

308.081° · 67.838°

HTM-20 index

-428719407