WebSep 8, 2011 · Ptolemy was an Egyptian astronomer, geographer and mathematician of Greek ancestry. He lived from 90 to 168 AD, and was the last great astronomer before the known world’s descent into the Dark Ages. He is important for preserving the Greek astronomer Hipparchus’ star catalogue, which he included in his astronomical magnum … http://cnr2.kent.edu/~manley/astronomers-alph.html

The 60 most influential Christians

WebJan 22, 2024 · pioneer of x-ray astronomy and space plasma physics; participated in discovery of the first known x-ray source outside the solar system (Scorpius X-1) Vera Rubin: 1928-American measured rotation curves for distant galaxies and ultimately concluded that 90% or more of the universe is made of invisible dark matter : Henry … WebPtolemy, Latin in full Claudius Ptolemaeus, (born c. 100 ce—died c. 170 ce), an Egyptian astronomer, mathematician, and geographer of Greek descent who flourished in Alexandria during the 2nd century ce. In … popular movies on dvd

Eight Women Astronomers You Should Know - JSTOR Daily

WebJan 5, 2024 · In that ancient era, there was one real astronomical woman: Hypatia (c. 355–415 CE) was a mathematician, astronomer, and philosopher who lived in Alexandria and worked on tables related to Ptolemy’s astronomical treatise Almagest. ... Comets were of great public interest, and Caroline’s quest made her famous. WebHere's our alphabetical list of the most popular astronomers, or contributors to astronomy, astrophysics, or cosmology on the Famous Scientists website, ordered by surname. … Webastronomical observatory, any structure containing telescopes and auxiliary instruments with which to observe celestial objects. Observatories can be classified on the basis of the part of the electromagnetic spectrum in which they are designed to observe. The largest number of observatories are optical; i.e., they are equipped to observe in and near the … popular movies of 2017