The HD 87816 System
HD 87816 is a planetary system in the constellation Vela hosting 2 confirmed exoplanets, about 435 light-years from Earth. One of its planets orbits within the habitable zone, where liquid water could exist on a planetary surface.
HD 87816: Star and Habitable Zone
HD 87816
- Spectral type
- K0 III
- Surface temperature
- 4,989 K (Sun: 5,772 K)
- Mass
- 2.41 M☉
- Radius
- 9.00 R☉
- Luminosity
- 45.2002 L☉
Habitable zone of HD 87816: 5.269–12.744 AU (conservative: 6.674–12.083 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
See the full interactive habitable-zone view in the Exoplanet Explorer app ›
All 2 Planets in the HD 87816 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| HD 87816 b | Cold Gas Giant | 484 d | — | — | 2025 |
| HD 87816 c HZ | Cold Gas Giant | 7,596 d | — | — | 2025 |
Discovery History
The first planet found here, HD 87816 b, was discovered in 2025 using the radial velocity method.
- 2025 — HD 87816 b (Radial Velocity)
- 2025 — HD 87816 c (Radial Velocity)
Frequently Asked Questions About HD 87816
How many planets does HD 87816 have?
HD 87816 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the HD 87816 system habitable?
One planet in the system orbits within the habitable zone, where liquid water could exist. Actual habitability depends on atmospheres and composition, which are not yet known.
How far away is HD 87816?
HD 87816 is about 435 light-years from Earth in the constellation Vela.
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