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Pi-2

Its story

Pi-2 Ursae Majoris, also catalogued as 4 Ursae Majoris, is an orange K2 giant 256 light-years away, swollen beyond eighteen solar radii. In 2006 a giant planet was confirmed in orbit: 4 UMa b, at least seven times the mass of Jupiter, completes one revolution every 270 days at 0.88 astronomical units. It is one of the better-known planetary systems around an ageing giant.

Constellation
Ursa Major
Apparent magnitude
4.59
Distance
256.0 light years
Coordinates (J2000)
RA 130.054° · Dec 64.328°
Catalogue
HIP 42527 · HD 73108

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