The HD 50554 System
3 planets
Gemini
HD 50554 is a planetary system in the constellation Gemini hosting 3 confirmed exoplanets, about 102 light-years from Earth.
Size Comparison: The Planets of HD 50554
Planets without a measured radius are not shown.
HD 50554: Star and Habitable Zone
HD 50554
- Spectral type
- F8 V
- Surface temperature
- 6,050 K (Sun: 5,772 K)
- Mass
- 1.10 M☉
All 3 Planets in the HD 50554 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| HD 50554 b | Cold Gas Giant | 1,240 d | — | 0.28 | 2002 |
| HD 50554 c | Super Earth | 6.0 d | 1.31 R⊕ | — | 2026 |
| HD 50554 d | Super Earth | 28 d | 1.41 R⊕ | — | 2026 |
Discovery History
The first planet found here, HD 50554 b, was discovered in 2002 using the radial velocity method. The most recent addition, HD 50554 d, followed in 2026.
- 2002 — HD 50554 b (Radial Velocity)
- 2026 — HD 50554 c (Transit)
- 2026 — HD 50554 d (Transit)
Frequently Asked Questions About HD 50554
How many planets does HD 50554 have?
HD 50554 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the HD 50554 system habitable?
None of the known planets in HD 50554 orbit within the star's habitable zone.
How far away is HD 50554?
HD 50554 is about 102 light-years from Earth in the constellation Gemini.
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