1)Galactocentric distance,银心距2)galactocentric distance,[天]银心距3)perigalactic distance,近银心距4)galactocentric distance of the Sun,太阳银心距5)Galactic center,银心6)centroid,形心;距心
用法和例句
The Galactic center, the nearest galactic nucleus, represents the typical ones with low activity.