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Pi-1
Variable starIts story
Pi-1 Ursae Majoris is a discreet solar neighbour: a G0.5 yellow dwarf only 47 light-years away, with 90% of the Sun's mass and a radius nearly identical. Young —about 200 million years— it shows perceptible chromospheric activity that places it among the gentle variables of the catalogue. To look at it is to look at a Sun like ours, only much younger.
- Constellation
- Ursa Major
- Apparent magnitude
- 5.63
- Distance
- 46.8 light years
- Coordinates (J2000)
- RA 129.799° · Dec 65.021°
- Catalogue
- HIP 42438 · HD 72905
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