The HD 153557 System
3 planets
Hercules
HD 153557 is a planetary system in the constellation Hercules hosting 3 confirmed exoplanets, about 59 light-years from Earth.
HD 153557: Star and Habitable Zone
HD 153557
- Mass
- 0.79 M☉
All 3 Planets in the HD 153557 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| HD 153557 b | Neptune-like | 7.3 d | — | 0.17 | 2022 |
| HD 153557 c | Neptune-like | 15 d | — | 0.21 | 2022 |
| HD 153557 d | — | 40,655 d | — | 0.07 | 2022 |
Discovery History
The first planet found here, HD 153557 b, was discovered in 2022 using the radial velocity method.
- 2022 — HD 153557 b (Radial Velocity)
- 2022 — HD 153557 c (Radial Velocity)
- 2022 — HD 153557 d (Radial Velocity)
Frequently Asked Questions About HD 153557
How many planets does HD 153557 have?
HD 153557 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the HD 153557 system habitable?
None of the known planets in HD 153557 orbit within the star's habitable zone.
How far away is HD 153557?
HD 153557 is about 59 light-years from Earth in the constellation Hercules.
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