The HD 66428 System
2 planets
Monoceros
HD 66428 is a planetary system in the constellation Monoceros hosting 2 confirmed exoplanets, about 174 light-years from Earth.
HD 66428: Star and Habitable Zone
HD 66428
- Mass
- 1.01 M☉
All 2 Planets in the HD 66428 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| HD 66428 b | Cold Gas Giant | 2,270 d | — | 0.18 | 2005 |
| HD 66428 c | Cold Gas Giant | 10,479 d | — | 0.08 | 2021 |
Discovery History
The first planet found here, HD 66428 b, was discovered in 2005 using the radial velocity method. The most recent addition, HD 66428 c, followed in 2021.
- 2005 — HD 66428 b (Radial Velocity)
- 2021 — HD 66428 c (Radial Velocity)
Frequently Asked Questions About HD 66428
How many planets does HD 66428 have?
HD 66428 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the HD 66428 system habitable?
None of the known planets in HD 66428 orbit within the star's habitable zone.
How far away is HD 66428?
HD 66428 is about 174 light-years from Earth in the constellation Monoceros.
Explore the HD 66428 system in the app
Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.
