Engineering:Stonyhurst disks

From HandWiki
Jump to: navigation, search

A Stonyhurst disk is a transparent circular grid with lines of longitude and latitude that can overlay a solar image to reference the positions of sunspots. This overlay system was originally created at the Stonyhurst College observatory.[1][2]


  1. Stonyhurst Disk Animation , Data and Activities for Solar Learning,,
  2. "Daily Sunspot Drawings at the 150-Foot Solar Tower", The 150-Foot Solar Tower at Mt. Wilson Observatory, UCLA disks was the original source. Read more.