The HD 81817 System
2 planets
Draco
HD 81817 is a planetary system in the constellation Draco hosting 2 confirmed exoplanets, about 878 light-years from Earth.
HD 81817: Star and Habitable Zone
HD 81817
- Mass
- 4.30 M☉
All 2 Planets in the HD 81817 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| HD 81817 b | — | 1,021 d | — | 0.08 | 2020 |
| HD 81817 c | — | 623 d | — | 0.08 | 2022 |
Discovery History
The first planet found here, HD 81817 b, was discovered in 2020 using the radial velocity method. The most recent addition, HD 81817 c, followed in 2022.
- 2020 — HD 81817 b (Radial Velocity)
- 2022 — HD 81817 c (Radial Velocity)
Frequently Asked Questions About HD 81817
How many planets does HD 81817 have?
HD 81817 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the HD 81817 system habitable?
None of the known planets in HD 81817 orbit within the star's habitable zone.
How far away is HD 81817?
HD 81817 is about 878 light-years from Earth in the constellation Draco.
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