Exoplanet

Kepler-1821 b

Orbiting Kepler-1821

Overview

Kepler-1821 b is an exoplanet orbiting the star Kepler-1821, discovered in 2021 using the Transit method. It is a Mini-Neptune world.

Key Measurements

Radius

2.59

Earth radii

015 R⊕

Mass (est.)

7.70

Earth masses

0500 M⊕

Orbital Period

16.5

days

0.1d10,000d

Distance

799.7

parsecs

Nearby10,000 pc

Radius (Earth radii)

2.59

Mass (Earth masses)

7.70

Estimated

Equilibrium Temperature

Unknown

Parameter source: Valizadegan et al. 2022

Orbital Period

16.458days

Distance from Earth

799.7 pc (~2608 ly)

Spectral Type

Unknown

Temperature

5475 K

Mass (Solar)

0.95 M☉

Radius (Solar)

0.88 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

294.5255°, 49.8725°

Discovery Method

Transit

Discovery Year

2021

Data Sources

Source ID: Kepler-1821 b

System Context

Kepler-1821 b orbits Kepler-1821 and was reported in 2021 and was detected with the Transit method.

Published measurements list a radius of 2.59 Earth radii, a mass of 7.7 Earth masses (estimated), and an orbital period of 16.46 days.

Catalog data places the system at about 799.7 parsecs from Earth and 1 known planet in the system.

Host star

Explore the stellar record for this system to compare temperature, spectral type, and known planets.

Open Kepler-1821