Exoplanet

HD 1397 b

Orbiting HD 1397

Overview

HD 1397 b is an exoplanet orbiting the star HD 1397, discovered in 2018 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

11.50

Earth radii

015 R⊕

Mass

131.90

Earth masses

0500 M⊕

Orbital Period

11.5

days

0.1d10,000d

Distance

79.6

parsecs

Nearby10,000 pc

Equilibrium Temp

1228

K

150 K3,500 K

Radius (Earth radii)

11.50

Mass (Earth masses)

131.90

Measured

Equilibrium Temperature

1228 K

Orbital Period

11.54 days

Distance from Earth

79.6 pc (~260 ly)

Spectral Type

Unknown

Temperature

5521 K

Mass (Solar)

1.32 M☉

Radius (Solar)

2.34 R☉

Luminosity

0.66 log L☉

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

4.4472°, -66.3589°

Discovery Method

Transit

Discovery Year

2018

Data Sources

Source ID: HD 1397 b

System Context

HD 1397 b orbits HD 1397 and was reported in 2018 and was detected with the Transit method.

Published measurements list a radius of 11.5 Earth radii, a mass of 131.9 Earth masses, an orbital period of 11.54 days, and an equilibrium temperature near 1,228 K.

Catalog data places the system at about 79.6 parsecs from Earth 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 HD 1397