Key parameters at a glance

A radius of 1.47 Earth radii
A mass of 2.77 Earth masses
Surface gravity around 1.27 g
An orbital period of 3.484 days
Semi-major axis 0.0453 AU
Equilibrium temperature 1,132 K (859 °C)
Distance from Earth 3,354.09 light-years
Earth Similarity Index 0.262
Travel time at Voyager 1 speed 59,149,382 years

Kepler-1901 b Planet Profile

Physical Specs

Radius

1.47 R⊕

Radius (Jupiter)

0.132 R♃

Mass

2.77 M⊕

Mass (Jupiter)

0.009 M♃

Density

4.75 g/cm³

Surface Gravity

1.27 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.262

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

#799of 1176

top 67.9%

This planet

1.47R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-1826 b 1.48 R⊕ K2-147 b 1.47 R⊕ Kepler-1756 b 1.47 R⊕

Metric	Earth	Kepler-1901 b	Jupiter
Radius (R⊕)	1.00	1.47	11.21
Mass (M⊕)	1.00	2.77	317.83
Density (g/cm³)	5.51	4.75	1.33
Surface Gravity (g)	1.00	1.27	2.53
Insolation (S⊕)	1.00	389.41	0.037

Star Catalogue Identifiers

TIC

TIC 159647219

Gaia DR2

Gaia DR2 2126648422351703168

Gaia DR3

Gaia DR3 2126648422351703168

System

Kepler-1901

Percentile among Super-Earth cohort

Radius 1.474 R⊕ · percentile 32 / cohort 1176

Mass 2.770 M⊕ · percentile 30 / cohort 1176

Orbital period 3.48 d · percentile 26 / cohort 1164

Distance 1,028.37 pc · percentile 82 / cohort 1171

ESI 0.262 · percentile 27 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

3.484 days

Semi-major axis

0.0453 AU

Eccentricity

0.000

Inclination

89.68 °

Year Length

A year here lasts approximately 3.48 Earth days (1.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0453 AU.

Transit Fingerprint

Depth

0.016 %

Duration

1.356 h

Impact parameter b

0.030

Rp / R★

0.011556

Transit midpoint (BJD)

2,454,967.5491

Photometric dip

Transit produces a flux drop of 162 ppm lasting ≈ 1.36 h.

Extended Orbital Architecture

Planet / star radius ratio

0.011556

Semi-major axis / stellar radius

18.840

Impact parameter (b)

0.030

Transit mid-time (BJD)

2,454,967.5491

Angular separation (arcsec)

0.04410

Eq. Temperature

1,132K

(859 °C)

Insolation (S⊕)

389.41

Earth = 1.00

Earth Similarity (ESI)

0.262

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

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-1901

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,696 K — cooler than the Sun (5,778 K)

Estimated Age

0.70 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.921 R☉

Stellar Mass

1.022 M☉

Metallicity [Fe/H]

0.14

Extended Stellar Properties

Surface gravity (log g)

4.519 dex

Stellar density

10.422 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,028.37 parsec

Light-years 3,354.09 ly

V-band magnitude

15.10 mag

Voyager-speed travel 59,149,382 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.944 mas

Total Proper Motion

2.960 mas/yr

PM Right Ascension

-1.44 mas/yr

PM Declination

2.59 mas/yr

Galactic Cartesian (pc)

x = 0.254 · y = -0.656 · z = 0.711

Equatorial (J2000)

RA 291.16436° · Dec 45.31831°

Galactic ℓ, b

77.237° · 13.522°

Ecliptic λ, β

308.528° · 65.950°

HTM-20 index

1586141555