Planisphere

A planisphere is a star chart analog computing instrument in the form of two adjustable disks that rotate on a common pivot. It can be adjusted to display the visible stars for any time and date. It is an instrument to assist in learning how to recognize stars and constellations. The astrolabe, an instrument that has its origins in the Hellenistic civilization, is a predecessor of the modern planisphere.

单词	Star wheel
释义	Star wheel 英语百科 Planisphere A planisphere is a star chart analog computing instrument in the form of two adjustable disks that rotate on a common pivot. It can be adjusted to display the visible stars for any time and date. It is an instrument to assist in learning how to recognize stars and constellations. The astrolabe, an instrument that has its origins in the Hellenistic civilization, is a predecessor of the modern planisphere.
随便看	gives support to的意思 GIF的意思 give sth a good advertisement的意思 give sth a jerk的意思 give sth a lick and a promise的意思 give sth. a miss的意思 give sth a miss的意思 give sth an airing的意思 gives thanks的意思 give sth a shot的意思 give sth a try的意思 give sth a warm的意思 give sth a warm reception的意思 give sth away的意思 give sth a whirl的意思 give sth a wipe的意思 give sth back的意思 gives the boot的意思 gives the shaft的意思 give sth for free的意思 give sth in的意思 give sth off的意思 give sth out的意思 give sth to的意思 give sth to sb on a plate的意思

Star wheel

Planisphere