chaosophia218:

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.

Accurate Planispheres represent the Celestial Coordinates: right Ascension and Declination. The changing positions of Planets, Asteroids or Comets in terms of these coordinates can be looked up in annual Astronomical guides, and these enable Planisphere users to find them in the Sky.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.