Арктур vs Поллукс
Roughly 3.0 times the light reaches the eye from Арктур, magnitude −0.05 against +1.16. Catalogues list Арктур as a K-type star and Поллукс as a K-type star in Gemini. Both lie at a comparable distance from the Sun — 36.7 light-years for Арктур and 33.8 for Поллукс.
Property comparison
| Property | Арктур | Поллукс |
|---|---|---|
| Обозначение | 16Alp Boo | 78Bet Gem |
| Созвездие | N/A | Gemini |
| Спектральный класс | Class K — K-type (Orange) | Class K — K-type (Orange) |
| Видимая звёздная величина | -0.05 | +1.16 |
| Абсолютная звёздная величина | -0.31 | 1.08 |
| Расстояние | 36.7 ly | 33.8 ly |
| Масса | N/A | N/A |
| Радиус | N/A | N/A |
| Температура | N/A | N/A |
| Светимость | N/A | N/A |
Full data for each star: Арктур · Поллукс
Key differences
Key Differences
- ◆ Both are K-type giant stars, but Arcturus is in the northern hemisphere's highlight and Pollux is in Gemini.
- ◆ Arcturus is the brightest star in the northern sky at magnitude −0.05; Pollux is the nearest giant star at ~34 ly.
- ◆ Pollux hosts a confirmed exoplanet (Thestias); Arcturus has no known planetary companions.
- ◆ Arcturus has an unusually high proper motion suggesting an unusual galactic orbit.
- ◆ Arcturus is about 170 times more luminous than the Sun; Pollux is about 33 times more luminous.