Confirmed Exoplanet Discovered 2021

Kepler-1892 b

A super-earth orbiting the g-type yellow (sun-like) Kepler-1892, located approximately 2,777.5 light-years from Earth.

Key parameters at a glance

  • A radius of 1.84 Earth radii
  • A mass of 4.03 Earth masses
  • Surface gravity around 1.19 g
  • An orbital period of 6.331 days
  • Semi-major axis 0.0633 AU
  • Equilibrium temperature 822 K (549 °C)
  • Distance from Earth 2,777.53 light-years
  • Earth Similarity Index 0.344
  • Travel time at Voyager 1 speed 48,981,707 years

Kepler-1892 b Planet Profile

Physical Specs

Radius
1.84 R⊕
Radius (Jupiter)
0.164 R♃
Mass
4.03 M⊕
Mass (Jupiter)
0.013 M♃
Density
3.57 g/cm³
Surface Gravity
1.19 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.344
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

#218of 1176

top 18.5%

This planet

1.84R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-1892 b Jupiter
Radius (R⊕)1.001.8411.21
Mass (M⊕)1.004.03317.83
Density (g/cm³)5.513.571.33
Surface Gravity (g)1.001.192.53
Insolation (S⊕)1.00108.040.037

Star Catalogue Identifiers

TIC

TIC 268492383

Gaia DR2

Gaia DR2 2075381734212529792

Gaia DR3

Gaia DR3 2075381734212529792

System

Kepler-1892

Percentile among Super-Earth cohort

Radius 1.837 R⊕ · percentile 81 / cohort 1176
Mass 4.030 M⊕ · percentile 75 / cohort 1176
Orbital period 6.33 d · percentile 49 / cohort 1164
Distance 851.60 pc · percentile 72 / cohort 1171
ESI 0.344 · percentile 49 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
6.331 days
Semi-major axis
0.0633 AU
Eccentricity
0.000
Inclination
89.70 °

Year Length

A year here lasts approximately 6.33 Earth days (1.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0633 AU.

Transit Fingerprint

Depth

0.031 %

Duration

2.688 h

Impact parameter b

0.094

Rp / R★

0.015805

Transit midpoint (BJD)

2,454,970.1415

Photometric dip

Transit produces a flux drop of 307 ppm lasting ≈ 2.69 h.

Extended Orbital Architecture

Planet / star radius ratio

0.015805

Semi-major axis / stellar radius

18.210

Impact parameter (b)

0.094

Transit mid-time (BJD)

2,454,970.1415

Angular separation (arcsec)

0.07430

Eq. Temperature

822K

(549 °C)

Insolation (S⊕)

108.04

Earth = 1.00

Earth Similarity (ESI)

0.344

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

Host System: Kepler-1892

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,383 K — cooler than the Sun (5,778 K)

Estimated Age

0.50 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.759 R☉

Stellar Mass

0.851 M☉

Metallicity [Fe/H]

-0.22

Extended Stellar Properties

Surface gravity (log g)

4.603 dex

Stellar density

2.849 g/cm³

Metallicity ratio

[Fe/H]

Distance
851.60 parsec
Light-years 2,777.53 ly
V-band magnitude
15.59 mag
Voyager-speed travel 48,981,707 yr

Multi-band Host Photometry — 16 bands

8.917.117.07B15.59V15.40Gaia15.41Kepler14.83TESS16.04Sloan g15.36Sloan r15.14Sloan i15.04Sloan z14.07J13.57H13.56K13.52W113.73W212.66W38.90W4

Astrometric Data

Parallax

1.147 mas

Total Proper Motion

8.651 mas/yr

PM Right Ascension

1.27 mas/yr

PM Declination

-8.56 mas/yr

Galactic Cartesian (pc)

x = 0.361 · y = -0.649 · z = 0.669

Equatorial (J2000)

RA 299.08101° · Dec 42.01810°

Galactic ℓ, b

76.993° · 6.922°

Ecliptic λ, β

317.621° · 60.738°

HTM-20 index

-437261697

Similar Worlds

Explore Related Categories