Procyon vs シリウス
| 特性 | Procyon | シリウス |
|---|---|---|
| 名称 | 10Alp CMi | 9Alp CMa |
| 星座 | N/A | Canis Major |
| スペクトル型 | Class F — F-type (Yellow-White) | Class A — A-type (White) |
| 見かけの等級 | +0.40 | -1.44 |
| 絶対等級 | 2.67 | 1.45 |
| 距離 | 11.5 ly | 8.6 ly |
| 質量 | N/A | N/A |
| 半径 | N/A | N/A |
| 温度 | N/A | N/A |
| 光度 | N/A | N/A |
主な違い
- ◆ Procyon (Alpha Canis Minoris) and Sirius (Alpha Canis Majoris) are both among the Sun's nearest stellar neighbours.
- ◆ Sirius is the brightest star at magnitude −1.46; Procyon is the eighth-brightest at magnitude 0.34.
- ◆ Sirius is an A-type star (hotter, more massive); Procyon is an F-type star closer to the Sun in character.
- ◆ Both are binary systems with white dwarf companions (Sirius B and Procyon B).
- ◆ Procyon is 11.46 light-years away; Sirius is slightly closer at 8.6 light-years.