![Kepler-24 b: 11.1 Earth Masses](https://cdn.slatesource.com/7/1/a/71ac1961-838c-4d9c-8a18-5bc9d19268a8.webp)

# Kepler-24 b: 11.1 Earth Masses

- [Made in Slatesource](https://slatesource.com/@steph/kepler-24-b-11-1-earth-masses)
- By [Steph](https://slatesource.com/@steph)
- Created on Sep 19, 2026

## Mini-neptune around Kepler-24

It is 2.35 times Earth's radius, closest in size to Neptune, and 11.1 times Earth's mass, at 4.69 g/cm3, less dense than Earth. A year there lasts 8.14 days. The host star Kepler-24 runs at 6028 K with 1.06 times the Sun's mass.

Radius

2.35 Earth radii

Mass

11.1 Earth masses

One year

8.14 days

Host star

Kepler-24 at 6028 K

Distance

3773 light-years

Starlight blocked

0.038% at each transit

🔭🪐📅01.01.2011 – 01.01.2014

01.01.2011Kepler-24 b, Kepler-24 c

01.01.2011

01.01.2014Kepler-24 d, Kepler-24 e

01.01.2014

The state of the record for this planet

0%

A radius from transit photometry. Yes.

A weight, not just a width. Yes.

A density, so rock and gas can be told apart. Yes.

How far out it orbits. No.

A measured temperature rather than a derived one. No.

An eccentricity, so the orbit shape is known. Yes.

What you get from the shadow

The fraction of starlight blocked sets the radius against the star's.

Kepler-24 has 4 known planets. Systems like this are the ones where architecture can be studied instead of guessed at.

Two independent measurements sit behind this page: a dip in starlight for the size, and something else entirely for the mass. Together they make a density.

Found by Kepler in 2011. Kepler watched a single field continuously, so it found the planets that come round often. A world with a long year simply never repeated within the mission.

[NASA Exoplanet Archive: every published measurement of this planet](https://exoplanetarchive.ipac.caltech.edu/overview/Kepler-24%20b?utm_source=slatesource)