| 释义 |
M82 galaxy M82 galaxy[¦em ¦ād·ē¦tü ′gal·ik·sē] (astronomy) An active, variable spiral galaxy that exhibits strong emission from its center in the radio band, 104 to 106 times greater than that of normal spirals, and ejection of gases at speeds up to 620 miles (1000 kilometers) per second. |