Exoplanet

Kepler-451 c

Orbiting 2MASS J19383260+4603591

Overview

Kepler-451 c is an exoplanet orbiting the star 2MASS J19383260+4603591, discovered in 2022 using the Eclipse Timing Variations method.

Key Measurements

Minimum Mass (M sin i)

511.70

Earth masses

0500 M⊕

Orbital Period

1460.0

days

0.1d10,000d

Distance

396.3

parsecs

Nearby10,000 pc

What these measurements mean

These comparisons use the reported catalog values. They are interpretations and calculations, not additional observations.

A year on this world
One orbit lasts about 4 Earth years. This comparison uses the reported orbital period. It does not measure the planet's rotation or the length of its day.
What the mass can tell you
M sin i is a lower bound on the true mass because the viewing angle affects the radial-velocity measurement. Do not treat it as an exact mass or use it to claim a measured density.
Work through an exoplanet comparisonArchive measurement definitions

Radius (Earth radii)

Unknown

Minimum Mass, M sin(i) (Earth masses)

511.70

Radial-velocity minimum

Equilibrium Temperature

Unknown

Parameter source: Esmer et al. 2022

Orbital Period

1460.000+90.000−90.000days

M sin(i) (Earth masses)

511.70+44.50−44.50

M sin(i) (Jupiter masses)

1.6100+0.1400−0.1400

Eccentricity

0.2900+0.0700−0.0700

Epoch of Periastron

2456211.00+38.00−38.00days(BJD-TDB)

Argument of Periastron

7.0+14.0−14.0deg

Distance from Earth

396.3 pc (~1293 ly)

Spectral Type

Unknown

Temperature

29564 K

Mass (Solar)

0.48 M☉

Radius (Solar)

0.20 R☉

Luminosity

Unknown

Planets in System

3

Stars in System

2

Coordinates (RA, Dec)

294.6359°, 46.0664°

Discovery Method

Eclipse Timing Variations

Discovery Year

2022

Data Sources
NASA Exoplanet Archive

Source ID: Kepler-451 c

System Context

Kepler-451 c orbits 2MASS J19383260+4603591 and was reported in 2022 and was detected with the Eclipse Timing Variations method.

Published measurements list a minimum mass of 511.7 Earth masses (M sin i) and an orbital period of 1,460 days.

Catalog data places the system at about 396.3 parsecs from Earth and 3 known planets in the system.

Host star

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

Open 2MASS J19383260+4603591

More planets in this system

2MASS J19383260+4603591 bKepler-451 d