Exoplanet

HAT-P-47 b

Orbiting HAT-P-47

Overview

HAT-P-47 b is an exoplanet orbiting the star HAT-P-47, discovered in 2026 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

14.72

Earth radii

015 R⊕

Mass

65.47

Earth masses

0500 M⊕

Orbital Period

4.7

days

0.1d10,000d

Distance

282.1

parsecs

Nearby10,000 pc

Equilibrium Temp

1605

K

150 K3,500 K

What these measurements mean

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

Size in perspective
At the reported radius, a spherical model gives about 3,190 times Earth's volume. This is the radius ratio cubed, not a mass comparison. The radius alone cannot establish whether this world has a rocky surface or a thick gaseous envelope.
A year on this world
A 365.25-day Earth year spans about 77.2 of these orbits. 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
Mass describes how much material the planet contains. Inspect the published uncertainty and reference before combining it with a radius to estimate density. Catalog values can come from different studies.
Temperature has limits
Equilibrium temperature describes a model of absorbed and emitted energy, not a measured surface temperature. Atmosphere and reflectivity affect the interpretation. This value alone cannot establish liquid water, a habitable surface, or life.
Work through an exoplanet comparisonArchive measurement definitions

Radius (Earth radii)

14.72

Mass (Earth masses)

65.47

Measured

Equilibrium Temperature

1605 K

Parameter source: Wang et al. 2026

Orbital Period

4.732+0.000−0.000days

Planet Mass (Earth masses)

65.47+12.40−12.40

Planet Mass (Jupiter masses)

0.2060+0.0390−0.0390

Distance from Earth

282.1 pc (~920 ly)

Spectral Type

F

Temperature

6703 K

Mass (Solar)

1.39 M☉

Radius (Solar)

1.51 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

38.3081°, 30.3605°

Discovery Method

Transit

Discovery Year

2026

Data Sources
NASA Exoplanet Archive

Source ID: HAT-P-47 b

System Context

HAT-P-47 b orbits HAT-P-47 and was reported in 2026 and was detected with the Transit method.

Published measurements list a radius of 14.72 Earth radii, a mass of 65.47 Earth masses, an orbital period of 4.73 days, and an equilibrium temperature near 1,605 K.

Catalog data places the system at about 282.1 parsecs from Earth, a host star classified as F, 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 HAT-P-47