astronomical tables drawn up at Toledo by order of Alfonso X. in 1252 to correct the anomalies in the Ptolemaic tables; they divided the year into 365 days, 5 hours, 49 minutes, 16 seconds.

The Nuttall Encyclopaedia. . 1907.

Look at other dictionaries:

  • Alfonsine tables — The Alfonsine tables (sometimes spelled Alphonsine tables ) were ephemeris (astronomical tables) drawn up at Toledo by order of Alfonso X around 1252 to 1270 to correct anomalies in the Tables of Toledo. They divided the year into 365 days, 5… …   Wikipedia

  • Alfonsine Tables — ▪ astronomy also spelled  Alphonsine Tables        the first set of astronomical tables prepared in Christian Europe. They enabled calculation of eclipses and the positions of the planets for any given time based on the Ptolemaic theory… …   Universalium

  • Tables of Toledo — Gerard of Cremona (1114–1187) edited for Latin readers the Tables of Toledo ( Toledan Tables ), the most accurate compilation of astronomical/astrological data (ephemeris) ever seen in Europe at the time. The Tables were partly the work of al… …   Wikipedia

  • Prutenic Tables — The Prutenic Tables ( la. Tabulae prutenicae, de. Prutenische oder Preußische Tafeln), were ephemeris (astronomical tables) by astronomer Erasmus Reinhold published in 1551. They are sometimes called the Prussian Tables after Albert I, Duke of… …   Wikipedia

  • eclipse — eclipser, n. /i klips /, n., v., eclipsed, eclipsing. n. 1. Astron. a. the obscuration of the light of the moon by the intervention of the earth between it and the sun (lunar eclipse) or the obscuration of the light of the sun by the intervention …   Universalium

  • Deferent and epicycle — Deferent redirects here. For the acknowledgement of the legitimacy of the power of one s superior or superiors, see Deference. The basic elements of Ptolemaic astronomy, showing a planet on an epicycle (smaller dashed circle) , a deferent (larger …   Wikipedia

  • Abū Ishāq Ibrāhīm al-Zarqālī — Arzachel redirects here. For other uses, see Arzachel (disambiguation). Abū Isḥāq Ibrāhīm ibn Yaḥyā al Naqqāsh al Zarqālī, Al Zarqali, Ibn Zarqala (1029–1087), Latinized as Arzachel, was an instrument maker and one of the leading theoretical and… …   Wikipedia

  • Dating Creation — Cultures throughout history have attempted to date the beginning of the the world in the past, so methods of dating Creation have involved analysing scriptures or ancient texts. Contents 1 Ancient creation dates 1.1 Chinese 1.2 Greek and Roman …   Wikipedia

  • John of Saxony (astronomer) — John of Saxony, or John Danko or Dancowe of Saxony was an astronomer who spent most of his active career, from about 1327 1355, at the University of Paris. In 1327 he added an influential set of explanations and instructions ( Canons ) to the… …   Wikipedia

  • Definition of planet — Photograph of the crescent planet Neptune (top) and its moon Triton (center) …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.