The HD 159243 System
HD 159243 is a planetary system in the constellation Ophiuchus hosting 2 confirmed exoplanets, about 239 light-years from Earth.
HD 159243: Star and Habitable Zone
HD 159243
- Spectral type
- G0 V
- Surface temperature
- 6,123 K (Sun: 5,772 K)
- Mass
- 1.13 M☉
- Radius
- 1.12 R☉
- Luminosity
- 1.3002 L☉
- Age
- 1.3 billion years (Sun: 4.6)
Habitable zone of HD 159243: 0.838–1.958 AU (conservative: 1.061–1.857 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 159243 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| HD 159243 b | Cold Gas Giant | 13 d | — | 0.08 | 2013 |
| HD 159243 c | Cold Gas Giant | 248 d | — | 0.34 | 2013 |
Discovery History
The first planet found here, HD 159243 b, was discovered in 2013 using the radial velocity method.
- 2013 — HD 159243 b (Radial Velocity)
- 2013 — HD 159243 c (Radial Velocity)
Frequently Asked Questions About HD 159243
How many planets does HD 159243 have?
HD 159243 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the HD 159243 system habitable?
None of the known planets in HD 159243 orbit within the star's habitable zone.
How far away is HD 159243?
HD 159243 is about 239 light-years from Earth in the constellation Ophiuchus.
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