Key parameters at a glance

A radius of 1.20 Earth radii
A mass of 1.87 Earth masses
Surface gravity around 1.30 g
An orbital period of 15.033 days
Semi-major axis 0.1236 AU
Equilibrium temperature 928 K (655 °C)
Distance from Earth 3,971.99 light-years
Earth Similarity Index 0.337
Travel time at Voyager 1 speed 70,046,093 years

Kepler-1500 b Planet Profile

Physical Specs

Radius

1.20 R⊕

Radius (Jupiter)

0.107 R♃

Mass

1.87 M⊕

Mass (Jupiter)

0.006 M♃

Density

5.95 g/cm³

Surface Gravity

1.30 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.337

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

#75of 570

top 13.0%

This planet

1.20R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-225 b 1.20 R⊕ Kepler-282 c 1.20 R⊕ Kepler-367 c 1.20 R⊕

Metric	Earth	Kepler-1500 b	Jupiter
Radius (R⊕)	1.00	1.20	11.21
Mass (M⊕)	1.00	1.87	317.83
Density (g/cm³)	5.51	5.95	1.33
Surface Gravity (g)	1.00	1.30	2.53
Insolation (S⊕)	1.00	131.82	0.037

Star Catalogue Identifiers

TIC

TIC 121786521

Gaia DR2

Gaia DR2 2101229019187047040

Gaia DR3

Gaia DR3 2101229019187047040

System

Kepler-1500

Percentile among Rocky Terrestrial cohort

Radius 1.200 R⊕ · percentile 84 / cohort 570

Mass 1.870 M⊕ · percentile 77 / cohort 570

Orbital period 15.03 d · percentile 88 / cohort 567

Distance 1,217.82 pc · percentile 96 / cohort 566

ESI 0.337 · percentile 48 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

15.033 days

Semi-major axis

0.1236 AU

Eccentricity

0.000

Inclination

84.02 °

Year Length

A year here lasts approximately 15.03 Earth days (4.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1236 AU.

Transit Fingerprint

Depth

0.013 %

Duration

5.416 h

Impact parameter b

0.149

Rp / R★

0.010781

Transit midpoint (BJD)

2,454,964.9042

Photometric dip

Transit produces a flux drop of 132 ppm lasting ≈ 5.42 h.

Extended Orbital Architecture

Planet / star radius ratio

0.010781

Semi-major axis / stellar radius

8.600

Impact parameter (b)

0.149

Transit mid-time (BJD)

2,454,964.9042

Angular separation (arcsec)

0.10100

Eq. Temperature

928K

(655 °C)

Insolation (S⊕)

131.82

Earth = 1.00

Earth Similarity (ESI)

0.337

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-1500

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,845 K — hotter than the Sun (5,778 K)

Estimated Age

4.07 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.000 R☉

Stellar Mass

1.000 M☉

Metallicity [Fe/H]

-0.05

Extended Stellar Properties

Surface gravity (log g)

4.440 dex

Stellar density

0.053 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,217.82 parsec

Light-years 3,971.99 ly

V-band magnitude

14.73 mag

Voyager-speed travel 70,046,093 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.793 mas

Total Proper Motion

26.971 mas/yr

PM Right Ascension

19.58 mas/yr

PM Declination

18.55 mas/yr

Galactic Cartesian (pc)

x = 0.249 · y = -0.728 · z = 0.639

Equatorial (J2000)

RA 288.88347° · Dec 39.74465°

Galactic ℓ, b

71.321° · 12.693°

Ecliptic λ, β

301.057° · 61.163°

HTM-20 index

-95696009