The HD 147873 System
HD 147873 is a planetary system in the constellation Scorpius hosting 2 confirmed exoplanets around 2 stars, about 356 light-years from Earth.
Star HD 147873 and Its Habitable Zone
HD 147873
- Spectral type
- G1 V
- Surface temperature
- 5,972 K (Sun: 5,772 K)
- Mass
- 1.38 M☉
- Radius
- 2.29 R☉
- Luminosity
- 5.9900 L☉
- Age
- 4.0 billion years (Sun: 4.6)
Habitable zone of HD 147873: 1.815–4.256 AU (conservative: 2.299–4.035 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
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All 2 Planets in the HD 147873 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| HD 147873 b | Cold Gas Giant | 117 d | — | 0.11 | 2016 |
| HD 147873 c | Cold Gas Giant | 492 d | — | 0.28 | 2016 |
Discovery History
The first planet found here, HD 147873 b, was discovered in 2016 using the radial velocity method.
- 2016 — HD 147873 b (Radial Velocity)
- 2016 — HD 147873 c (Radial Velocity)
Frequently Asked Questions About HD 147873
How many planets does HD 147873 have?
HD 147873 has 2 confirmed exoplanets distributed around its 2 stars. More may await discovery.
Are any planets in the HD 147873 system habitable?
None of the known planets in HD 147873 orbit within the star's habitable zone.
How far away is HD 147873?
HD 147873 is about 356 light-years from Earth in the constellation Scorpius.
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