bet UMi planetary system
bet UMi is an orange main-sequence star of spectral type K4 III approximately 126 light-years from Earth (38.77 parsecs). It hosts 1 confirmed exoplanet.
Host star
- Name
- bet UMi
- Spectral type
- K4 III
- Effective temperature
- 4,126 K
- Mass
- 1.40 M☉ (solar masses)
- Radius
- 38.30 R☉ (solar radii)
- Distance
- 38.77 pc (126 ly)
- Hipparcos catalog
- HIP 72607
Confirmed planets (1)
| Planet | Class | Mass (M⊕) | Radius (R⊕) | Period (d) | Distance (AU) | Eq. temp (K) | Discovered |
|---|---|---|---|---|---|---|---|
| bet UMi b | Neptune-like | 1938.70 | 12.70 | 522.30 | 1.4000 | — | 2014 |
The planets in detail
bet UMi b is a Neptune-like world with about 12.70 Earth radii and 1938.70 Earth masses. It orbits bet UMi at 1.4000 AU with a 522-day year, and no published equilibrium temperature. It was confirmed in 2014 via radial velocity (Doppler) measurements.
Discovery
The single planet in the bet UMi system was confirmed in 2014 using radial velocity (Doppler) measurements. Detection facilities: Bohyunsan Optical Astronomical Observatory.
Observing from Earth
Exoplanets cannot be resolved visually with amateur telescopes — the host star's glare is overwhelming and even space-based direct imaging requires sophisticated coronagraphs. What you can observe is the host star itself at right ascension 222.6765°, declination 74.1555°. Use the 3D orrery above to inspect orbital geometry, planetary scale, and the habitable-zone overlay — the orbits are computed from the published Keplerian elements and animate at user-controlled time rates.
