Confirmed Exoplanet Discovered 2021

Kepler-1900 b

A super-earth orbiting the f-type yellow-white Kepler-1900, located approximately 5,024.2 light-years from Earth.

Key parameters at a glance

  • A radius of 1.62 Earth radii
  • A mass of 3.27 Earth masses
  • Surface gravity around 1.24 g
  • An orbital period of 2.986 days
  • Semi-major axis 0.0420 AU
  • Equilibrium temperature 1,356 K (1083 °C)
  • Distance from Earth 5,024.20 light-years
  • Earth Similarity Index 0.207
  • Travel time at Voyager 1 speed 88,601,848 years

Kepler-1900 b Planet Profile

Physical Specs

Radius
1.62 R⊕
Radius (Jupiter)
0.145 R♃
Mass
3.27 M⊕
Mass (Jupiter)
0.010 M♃
Density
4.20 g/cm³
Surface Gravity
1.24 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.207
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

#531of 1176

top 45.1%

This planet

1.62R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-1900 b Jupiter
Radius (R⊕)1.001.6211.21
Mass (M⊕)1.003.27317.83
Density (g/cm³)5.514.201.33
Surface Gravity (g)1.001.242.53
Insolation (S⊕)1.00798.350.037

Star Catalogue Identifiers

TIC

TIC 63010445

Gaia DR2

Gaia DR2 2126561732730882432

Gaia DR3

Gaia DR3 2126561732730882432

System

Kepler-1900

Percentile among Super-Earth cohort

Radius 1.623 R⊕ · percentile 55 / cohort 1176
Mass 3.270 M⊕ · percentile 50 / cohort 1176
Orbital period 2.99 d · percentile 21 / cohort 1164
Distance 1,540.43 pc · percentile 95 / cohort 1171
ESI 0.207 · percentile 14 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
2.986 days
Semi-major axis
0.0420 AU
Eccentricity
0.000
Inclination
88.11 °

Year Length

A year here lasts approximately 2.99 Earth days (0.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0420 AU.

Transit Fingerprint

Depth

0.012 %

Duration

2.969 h

Impact parameter b

0.245

Rp / R★

0.010222

Transit midpoint (BJD)

2,454,966.4782

Photometric dip

Transit produces a flux drop of 123 ppm lasting ≈ 2.97 h.

Extended Orbital Architecture

Planet / star radius ratio

0.010222

Semi-major axis / stellar radius

7.550

Impact parameter (b)

0.245

Transit mid-time (BJD)

2,454,966.4782

Angular separation (arcsec)

0.02730

Eq. Temperature

1,356K

(1083 °C)

Insolation (S⊕)

798.35

Earth = 1.00

Earth Similarity (ESI)

0.207

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

Host System: Kepler-1900

Spectral Class

F-type yellow-white

Effective Temperature

6,173 K — hotter than the Sun (5,778 K)

Estimated Age

0.40 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.041 R☉

Stellar Mass

1.104 M☉

Metallicity [Fe/H]

-0.04

Extended Stellar Properties

Surface gravity (log g)

4.447 dex

Stellar density

0.913 g/cm³

Metallicity ratio

[Fe/H]

Distance
1,540.43 parsec
Light-years 5,024.20 ly
V-band magnitude
15.50 mag
Voyager-speed travel 88,601,848 yr

Multi-band Host Photometry — 16 bands

9.416.316.32B15.50V15.28Gaia15.33Kepler14.81TESS15.78Sloan g15.26Sloan r15.14Sloan i15.04Sloan z14.18J13.84H13.82K13.69W113.67W212.79W39.45W4

Astrometric Data

Parallax

0.621 mas

Total Proper Motion

6.062 mas/yr

PM Right Ascension

2.80 mas/yr

PM Declination

5.38 mas/yr

Galactic Cartesian (pc)

x = 0.266 · y = -0.662 · z = 0.701

Equatorial (J2000)

RA 291.88632° · Dec 44.47903°

Galactic ℓ, b

76.684° · 12.700°

Ecliptic λ, β

308.971° · 64.984°

HTM-20 index

593839369

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