Key parameters at a glance

A radius of 1.82 Earth radii
A mass of 3.98 Earth masses
Surface gravity around 1.20 g
An orbital period of 7.017 days
Semi-major axis 0.0712 AU
Equilibrium temperature 984 K (711 °C)
Distance from Earth 4,212.21 light-years
Earth Similarity Index 0.285
Travel time at Voyager 1 speed 74,282,264 years

Kepler-1751 b Planet Profile

Physical Specs

Radius

1.82 R⊕

Radius (Jupiter)

0.163 R♃

Mass

3.98 M⊕

Mass (Jupiter)

0.013 M♃

Density

3.60 g/cm³

Surface Gravity

1.20 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.285

HZ Position Inner

Controversial No

Discovery

Year 2021

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#233of 1176

top 19.7%

This planet

1.82R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

TOI-2068 b 1.82 R⊕ Kepler-1938 b 1.83 R⊕ Kepler-283 c 1.82 R⊕

Metric	Earth	Kepler-1751 b	Jupiter
Radius (R⊕)	1.00	1.82	11.21
Mass (M⊕)	1.00	3.98	317.83
Density (g/cm³)	5.51	3.60	1.33
Surface Gravity (g)	1.00	1.20	2.53
Insolation (S⊕)	1.00	221.46	0.037

Star Catalogue Identifiers

TIC

TIC 48451491

Gaia DR2

Gaia DR2 2132220334960823552

Gaia DR3

Gaia DR3 2132220334960823552

System

Kepler-1751

Percentile among Super-Earth cohort

Radius 1.824 R⊕ · percentile 80 / cohort 1176

Mass 3.980 M⊕ · percentile 73 / cohort 1176

Orbital period 7.02 d · percentile 52 / cohort 1164

Distance 1,291.47 pc · percentile 91 / cohort 1171

ESI 0.285 · percentile 33 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

7.017 days

Semi-major axis

0.0712 AU

Eccentricity

0.000

Inclination

87.34 °

Year Length

A year here lasts approximately 7.02 Earth days (1.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0712 AU.

Transit Fingerprint

Depth

0.026 %

Duration

3.567 h

Impact parameter b

0.581

Rp / R★

0.015214

Transit midpoint (BJD)

2,454,966.9059

Photometric dip

Transit produces a flux drop of 256 ppm lasting ≈ 3.57 h.

Extended Orbital Architecture

Planet / star radius ratio

0.015214

Semi-major axis / stellar radius

12.530

Impact parameter (b)

0.581

Transit mid-time (BJD)

2,454,966.9059

Angular separation (arcsec)

0.05510

Eq. Temperature

984K

(711 °C)

Insolation (S⊕)

221.46

Earth = 1.00

Earth Similarity (ESI)

0.285

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

Valizadegan et al. 2022

Instrument

Kepler CCD Array

Publication

2022-02

Observation locale

Space

Discovery cohort

Planets confirmed in 2021 at Kepler (12 shown).

Kepler-1816 b · Super-Earth Kepler-1705 c · Sub-Neptune Kepler-1948 b · Rocky Terrestrial Kepler-196 d · Sub-Neptune Kepler-1853 b · Super-Earth Kepler-1840 b · Sub-Neptune Kepler-1881 b · Sub-Neptune Kepler-1858 b · Sub-Neptune Kepler-1874 b · Sub-Neptune Kepler-1802 c · Sub-Neptune Kepler-1749 b · Super-Earth Kepler-1849 b · Sub-Neptune

Host System: Kepler-1751

Spectral Class

F-type yellow-white

Effective Temperature

6,052 K — hotter than the Sun (5,778 K)

Estimated Age

1.90 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.967 R☉

Stellar Mass

0.974 M☉

Metallicity [Fe/H]

-0.26

Extended Stellar Properties

Surface gravity (log g)

4.456 dex

Stellar density

0.756 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,291.47 parsec

Light-years 4,212.21 ly

V-band magnitude

15.46 mag

Voyager-speed travel 74,282,264 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.746 mas

Total Proper Motion

13.983 mas/yr

PM Right Ascension

-9.45 mas/yr

PM Declination

-10.31 mas/yr

Galactic Cartesian (pc)

x = 0.166 · y = -0.625 · z = 0.763

Equatorial (J2000)

RA 284.84655° · Dec 49.69234°

Galactic ℓ, b

79.751° · 19.133°

Ecliptic λ, β

301.508° · 71.511°

HTM-20 index

-292789200