The HD 12661 System
HD 12661 is a planetary system in the constellation Aries hosting 2 confirmed exoplanets, about 123 light-years from Earth.
HD 12661: Star and Habitable Zone
HD 12661
- Surface temperature
- 5,645 K (Sun: 5,772 K)
- Mass
- 1.20 M☉
- Radius
- 1.20 R☉
Habitable zone of HD 12661: 0.866–2.049 AU (conservative: 1.097–1.942 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 12661 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| HD 12661 b | Cold Gas Giant | 263 d | — | 0.34 | 2000 |
| HD 12661 c | Cold Gas Giant | 1,708 d | — | 0.19 | 2002 |
Discovery History
The first planet found here, HD 12661 b, was discovered in 2000 using the radial velocity method. The most recent addition, HD 12661 c, followed in 2002.
- 2000 — HD 12661 b (Radial Velocity)
- 2002 — HD 12661 c (Radial Velocity)
Frequently Asked Questions About HD 12661
How many planets does HD 12661 have?
HD 12661 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the HD 12661 system habitable?
None of the known planets in HD 12661 orbit within the star's habitable zone.
How far away is HD 12661?
HD 12661 is about 123 light-years from Earth in the constellation Aries.
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