Key parameters at a glance

A radius of 2.70 Earth radii
A mass of 7.75 Earth masses
Surface gravity around 1.06 g
An orbital period of 42.914 days
Semi-major axis 0.2576 AU
Equilibrium temperature 810 K (537 °C)
Distance from Earth 3,249.56 light-years
Earth Similarity Index 0.303
Travel time at Voyager 1 speed 57,305,943 years

Kepler-1452 b Planet Profile

Physical Specs

Radius

2.70 R⊕

Radius (Jupiter)

0.241 R♃

Mass

7.75 M⊕

Mass (Jupiter)

0.024 M♃

Density

2.16 g/cm³

Surface Gravity

1.06 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.303

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

#865of 1978

top 43.7%

This planet

2.70R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-259 c 2.70 R⊕ Kepler-668 b 2.70 R⊕ Kepler-32 d 2.70 R⊕

Metric	Earth	Kepler-1452 b	Jupiter
Radius (R⊕)	1.00	2.70	11.21
Mass (M⊕)	1.00	7.75	317.83
Density (g/cm³)	5.51	2.16	1.33
Surface Gravity (g)	1.00	1.06	2.53
Insolation (S⊕)	1.00	73.50	0.037

Star Catalogue Identifiers

TIC

TIC 137635103

Gaia DR2

Gaia DR2 2051937638040407808

Gaia DR3

Gaia DR3 2051937638040407808

System

Kepler-1452

Percentile among Sub-Neptune cohort

Radius 2.700 R⊕ · percentile 56 / cohort 1978

Mass 7.750 M⊕ · percentile 51 / cohort 1978

Orbital period 42.91 d · percentile 82 / cohort 1946

Distance 996.32 pc · percentile 78 / cohort 1975

ESI 0.303 · percentile 28 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

42.914 days

Semi-major axis

0.2576 AU

Eccentricity

0.000

Inclination

89.60 °

Year Length

A year here lasts approximately 42.91 Earth days (11.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2576 AU.

Transit Fingerprint

Depth

0.016 %

Duration

5.121 h

Impact parameter b

0.403

Rp / R★

0.012281

Transit midpoint (BJD)

2,454,972.8885

Photometric dip

Transit produces a flux drop of 161 ppm lasting ≈ 5.12 h.

Extended Orbital Architecture

Planet / star radius ratio

0.012281

Semi-major axis / stellar radius

63.100

Impact parameter (b)

0.403

Transit mid-time (BJD)

2,454,972.8885

Angular separation (arcsec)

0.25900

Eq. Temperature

810K

(537 °C)

Insolation (S⊕)

73.50

Earth = 1.00

Earth Similarity (ESI)

0.303

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-1452

Spectral Class

F-type yellow-white

Effective Temperature

6,101 K — hotter than the Sun (5,778 K)

Estimated Age

3.24 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

2.060 R☉

Stellar Mass

1.410 M☉

Metallicity [Fe/H]

0.14

Extended Stellar Properties

Surface gravity (log g)

3.950 dex

Stellar density

0.150 g/cm³

Metallicity ratio

[Fe/H]

Distance

996.32 parsec

Light-years 3,249.56 ly

V-band magnitude

13.22 mag

Voyager-speed travel 57,305,943 yr

Multi-band Host Photometry — 17 bands

Astrometric Data

Parallax

0.975 mas

Total Proper Motion

8.226 mas/yr

PM Right Ascension

-4.72 mas/yr

PM Declination

-6.74 mas/yr

Galactic Cartesian (pc)

x = 0.299 · y = -0.726 · z = 0.619

Equatorial (J2000)

RA 292.42279° · Dec 38.26628°

Galactic ℓ, b

71.196° · 9.573°

Ecliptic λ, β

305.517° · 58.971°

HTM-20 index

1291818598