Triquetrum (astronomy)
id:
triquetrum-astronomy-318-9082687
title:
Triquetrum (astronomy)
text:
The triquetrum was the medieval name for an ancient astronomical instrument first described by Ptolemy in the Almagest. Also known as Parallactic Rulers, it was used for determining altitudes of heavenly bodies. Ptolemy calls it a "parallactic instrument" and seems to have used it to determine the zenith distance and parallax of the Moon.
brand slug:
wiki
category slug:
encyclopedia
description:
Ancient astronomical instrument
original url:
https://en.wikipedia.org/wiki/Triquetrum_(astronomy)
date created:
date modified:
2024-01-10T23:20:42Z
main entity:
{"identifier":"Q1258152","url":"https://www.wikidata.org/entity/Q1258152"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/3/3f/Dreistab_00.jpg","width":1006,"height":793}
fields total:
13
integrity:
15