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CONFIRMED EXOPLANET · Neptune-like

Kepler-145 b

Kepler-145 b orbits the star Kepler-145, 1,848.8 light-years from Earth. It completes an orbit in 22.951 Earth days.

DISCOVERED 2013 · Transit

Get to know this world ↓
Kepler-145 b
ORBITAL VISUALISATION
Neptune-likePlanet type

Size-based classification; composition may be uncertain.

2.65 × Earth’s radiusSize

Around 165% wider than Earth.

22.951 daysYear length

Time to complete one orbit.

1,848.8 light-yearsDistance

Its light travels for roughly 1,849 years to reach us.

2013Discovered

Transit

Overview

Kepler-145 b is one of the confirmed worlds in the NASA Exoplanet Archive. Recorded as discovered in 2013. The credited discovery facility is Kepler. Its Transit evidence gives us a way to study a planet that is usually too faint to see directly.

Its recorded radius is 2.65 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 37.1 Earth masses (Mass). Radius: 2.65 Earth radii.

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

Orbit & year

A year here lasts 22.951 Earth days. Its recorded semi-major axis is 0.173 AU. One AU is roughly the Earth–Sun distance.

Eccentricity: 0.43. Zero describes a circular orbit; increasing values describe more elongated ellipses.

Host star

Kepler-145.

Effective temperature: 6,022 K.

Mass: 1.32 times the Sun’s mass.

Planetary system

2 confirmed planets are stored for this star.

Kepler-145 b · 22.951-day orbit

Kepler-145 c · 42.882-day orbit

Discovery

Reported discovery year: 2013. Method: Transit. Facility: Kepler.

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.

The listed equilibrium temperature is 873 K. This is an estimated energy-balance temperature, not a measured surface temperature.

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

Radius2.65 Earth radii
Mass / minimum mass37.1 Earth masses (Mass)
Orbital period22.951 Earth days
Semi-major axis0.17308 AU
Eccentricity0.43
Equilibrium temperature873 K · estimated, not surface temperature
Host star temperature6,022 K
Host star mass1.32 Solar masses
Host star radius1.85 Solar radii
Distance566.85 parsecs
Discovery year2,013
Discovery methodTransit
Discovery facilityKepler
Discovery publication2014-02

Uncertainties and parameter provenance

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

ParameterUncertainty / source
Radius+0.08 / -0.08Xie 2014
Mass / minimum mass+11.6 / -11.6Xie 2014
Orbital periodUpper uncertainty unavailable / Lower uncertainty unavailableXie 2014
Equilibrium temperatureUpper uncertainty unavailable / Lower uncertainty unavailableQ1-Q17 DR25 KOI Table

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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