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CONFIRMED EXOPLANET · Rocky-size

EPIC 201497682 b

EPIC 201497682 b orbits the star EPIC 201497682, 825.3 light-years from Earth. It completes an orbit in 2.132 Earth days.

DISCOVERED 2019 · Transit

Get to know this world ↓
EPIC 201497682 b
ORBITAL VISUALISATION
Rocky-sizePlanet type

Size-based classification; composition may be uncertain.

0.69 × Earth’s radiusSize

Around 31% smaller in radius than Earth.

2.132 daysYear length

Time to complete one orbit.

825.3 light-yearsDistance

Its light travels for roughly 825 years to reach us.

2019Discovered

Transit

Overview

EPIC 201497682 b is one of the confirmed worlds in the NASA Exoplanet Archive. Recorded as discovered in 2019. The credited discovery facility is K2. Its Transit evidence gives us a way to study a planet that is usually too faint to see directly.

Its recorded radius is 0.69 times Earth's radius. Size is useful for comparison, but it cannot establish surface conditions by itself.

The planet

The archive lists a mass or minimum-mass value of 0.26 Earth masses (M-R relationship). Radius: 0.69 Earth radii.

Mass and radius constrain possible interiors; multiple compositions can fit a given set of measurements.

Orbit & year

A year here lasts 2.132 Earth days.

Host star

EPIC 201497682.

Effective temperature: 4,991 K.

Mass: 0.78 times the Sun’s mass.

Planetary system

1 confirmed planets are stored for this star.

EPIC 201497682 b · 2.132-day orbit

Discovery

Reported discovery year: 2019. Method: Transit. Facility: K2.

First stored in this atlas: 04/10/2026. This is an ingestion date, not a confirmation date.

How these methods work ↗

Potential habitability

The data here does not establish habitability, liquid water, or life. An appropriate atmosphere and many other conditions would be needed.

Understand the habitable zone ↗

What do we actually know?

Observed

The underlying light, motion or timing signal. Usually not a photograph of the planet.

Measured

Parameters derived from observations, with instrument and model uncertainty.

Calculated

Our light-year conversion and browsing class are calculated from archive values.

Estimated

Equilibrium temperature is an energy-balance estimate, not surface weather.

Inferred

Possible composition depends on models and may not be unique.

Unknown

Surface conditions and the presence of life are not established here.

Measured signals are interpreted through models. The archive’s composite table combines published values and may include calculated estimates. Values do not necessarily form one self-consistent solution.

Radius and mass can be estimated or inferred, orbital period comes from recurring observations, and size classification is calculated by this site. Atmospheric and surface conditions remain unknown unless established by specific observations.

Consult the archive for individual parameter references and uncertainty intervals before scientific use.

Scientific data

Radius0.692 Earth radii
Mass / minimum mass0.26 Earth masses (M-R relationship)
Orbital period2.13174 Earth days
Host star temperature4,991 K
Host star mass0.78 Solar masses
Host star radius0.554 Solar radii
Distance253.026 parsecs
Discovery year2,019
Discovery methodTransit
Discovery facilityK2
Discovery publication2019-07

Uncertainties and parameter provenance

Archive uncertainty ranges and published references, where available. A missing uncertainty does not imply an exact value.

ParameterUncertainty / source
Radius+0.059 / -0.048Heller et al. 2019
Mass / minimum massUpper uncertainty unavailable / Lower uncertainty unavailableCalculated Value
Orbital period+0.00022 / -0.00022Heller et al. 2019

Sources

NASA Exoplanet Archive · Planetary Systems Composite Parameters (PSCompPars).

Open the scientific archive record ↗

Last changed in this atlas: 04/10/2026, 11:39:41. Read our methodology.

Spotted something wrong? Report an error ↗

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