Soaring high in the eastern sky and almost overhead at around midnight right
now are the two stars marking the Hunting Dogs, known as Canes Venatici. In
their vicinity, avid backyard astronomers can find a wealth of interesting
objects to study, from a famous spiral galaxy to a cluster of distant star
cities.
转自: Today on SPACE.com -- Friday, May 17, 2002 |
|
置顶卡
变色卡
千斤顶
显身卡