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  1. Home
  2. Exoplanets
  3. HD 100508 b
Exoplanet

HD 100508 b

Host star: HD 100508Discovered: 2026
Radial VelocityLas Campanas Observatory

Distance from Earth: 32.8 parsecs (106.8 light years)

Discovery Method: Radial Velocity

The radial velocity (Doppler) method detects the slight wobble a planet induces in its host star as both bodies orbit their common center of mass. By measuring tiny shifts in the star's spectral lines, astronomers can infer the planet's minimum mass and orbital period. This was the first technique to successfully detect exoplanets around Sun-like stars.

Physical Properties

Radius

Unknown

Mass

381.39 M⊕

2.28E27 kg

Orbital Period

5,681.00 days

15.554 years

Eq. Temperature

Unknown

Orbital Semi-major Axis

6.1100 AU

Density

Unknown

Compared to Earth

Mass

HD 100508 b381.39 M\u2295
Earth1.00 M\u2295

381.39x Earth

Orbital Period

HD 100508 b5,681.00 days
Earth365.25 days

15.55x Earth

Star System: HD 100508

Star Temperature

5,419 K

Star Radius

--

Star Mass

0.94 M☉

Planets in System

1

Stars in System

1

Habitability Assessment

Habitable Zone

This planet orbits outside the estimated habitable zone of its star.

Habitability assessments are rough estimates based on limited available data. True habitability depends on many additional factors including atmospheric composition, magnetic field presence, tidal locking, and stellar activity. These assessments should not be considered definitive.

Exoplanet ExplorerNASA Archive

All Exoplanets

Solar System

The Sun

Glossary

ISS Tracker

Eccentricity

0.4200

Insolation Flux

Unknown

Earth flux = 1.0