The HIP 57274 System

3 planets 1 in habitable zone Ursa Major

HIP 57274 is a planetary system in the constellation Ursa Major hosting 3 confirmed exoplanets, about 84 light-years from Earth. One of its planets orbits within the habitable zone, where liquid water could exist on a planetary surface.

HIP 57274: Star and Habitable Zone

HIP 57274

Spectral type: K4 V
Surface temperature: 4,640 K (Sun: 5,772 K)
Mass: 0.73 M☉
Radius: 0.68 R☉
Luminosity: 1.5488 L☉
Age: 7.9 billion years (Sun: 4.6)

HIP 57274 b HIP 57274 c HIP 57274 d

Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of HIP 57274: 0.990–2.431 AU (conservative: 1.254–2.304 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 HZ	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?

One planet in the system orbits within the habitable zone, where liquid water could exist. Actual habitability depends on atmospheres and composition, which are not yet known.

How far away is HIP 57274?

HIP 57274 is about 84 light-years from Earth in the constellation Ursa Major.

Explore the HIP 57274 system in the app

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