Arcturus
orange giant · brightest star of the northern sky
37 light-years from Earth
An old star that has run out of hydrogen in its core and swollen to 25 times the Sun's width: a preview of the Sun in about 5 billion years.
- 36.7 light-years · moving fast through the Milky Way's disk
- kind
- star
- size
- 0.24 AU across
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- Capella yellow giants
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- Aldebaran orange giant
- Altair rapidly rotating A star
- Tau Ceti nearby Sun-like star
- Epsilon Eridani young Sun-like star with debris belts