Home › Instruments

Dipleidoscope

  • user notice: The _custom_breadcrumbs_get_breadcrumb() function called token replacement with an array rather than a string for $text in /home/drupal6/sites/all/modules/token/token.module on line 263.
  • user notice: The _custom_breadcrumbs_get_breadcrumb() function called token replacement with an array rather than a string for $text in /home/drupal6/sites/all/modules/token/token.module on line 263.
Inventory Number: 
AST24
Dipleidoscope Ploessl

Conceived by Giovanni Battista Amici at the beginning of the 19th c. to determine true noon. The prisms double the solar image when the Sun is not on the optical axis of the telescope. If correctly placed on the meridian, the instrument determines true noon within 5-10 seconds

Data
Date: 
1845 (c.)
Origin: 
National Observatory of Athens
Location: 
National Observatory of Athens
Maker: 
Ploessl, Georg Simon

Copyright National Hellenic Research Foundation - National Observatory of Athens