The HIP 57274 System
3 planets
Ursa Major
HIP 57274 is a planetary system in the constellation Ursa Major hosting 3 confirmed exoplanets, about 84 light-years from Earth.
HIP 57274: Star and Habitable Zone
HIP 57274
- Surface temperature
- 4,510 K (Sun: 5,772 K)
- Mass
- 0.29 M☉
- Radius
- 0.78 R☉
Too hot
Optimistic habitable zone
Conservative habitable zone
Too cold
Habitable zone of HIP 57274: 0.380–0.938 AU (conservative: 0.481–0.889 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 3 Planets in the HIP 57274 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| HIP 57274 b | Super Earth | 8.1 d | — | 0.24 | 2011 |
| HIP 57274 c | Cold Gas Giant | 32 d | — | 0.08 | 2011 |
| HIP 57274 d | Cold Gas Giant | 432 d | — | 0.37 | 2011 |
Discovery History
The first planet found here, HIP 57274 b, was discovered in 2011 using the radial velocity method.
- 2011 — HIP 57274 b (Radial Velocity)
- 2011 — HIP 57274 c (Radial Velocity)
- 2011 — HIP 57274 d (Radial Velocity)
Frequently Asked Questions About HIP 57274
How many planets does HIP 57274 have?
HIP 57274 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the HIP 57274 system habitable?
None of the known planets in HIP 57274 orbit within the star's habitable zone.
How far away is HIP 57274?
HIP 57274 is about 84 light-years from Earth in the constellation Ursa Major.