Skip to content
Catholic Online Logo

Astronomer, b. at Achleuthen near Kremsmünster, Austria, in 1721; d. at Kremsmünster, Austria, 27 August, 1791. He received his early education at Salzburg, where he displayed a talent for mathematics. He joined the Benedictines at the age of sixteen and became distinguished for his broad scholarship. In 1756 he published a small treatise entitled "Reipublicæ sacræ origines divinæ". He intended to continue this work but the transit of Venus in 1761 again aroused his interest in mathematics. Though already forty years of age he resumed his old studies with ardour, and an opportunity soon presented itself for work in astronomy. He was appointed director of the observatory of Kremsmünster, which had been established by his uncle in 1748 while abbot. His first task was to improve the equipment and have new instruments constructed, and as soon as possible he determined the latitude and longitude of the observatory. He continued in charge of the observatory until his death and by his industry accumulated a number of observations of great variety and value. He did not, however, devote all his time to astronomy. For many years he was in charge of the college connected with the abbey and at the same time acted as professor of canon law. As such he was honoured with the dignity of notary Apostolic of the Roman Court. Fixlmillner is best known for his work in astronomy. He was one of the first to compute the orbit of Uranus after its discovery by Herschel. His numerous observations of Mercury were of much service to Lalande in constructing tables of that planet. Besides the treatise already mentioned he was the author of "Meridianus speculæ astronomicæ cremifanensis" (Steyer, 1765), which treats of his observations in connexion with the latitude and longitude of his observatory, and "Decennium astronomicum" (Steyer, 1776). After his death his successor P. Derfflinger published the "Acta cremifanensia a Placido Fixlmillner" (Steyer, 1791), which contain his observations from 1776 to 1791.

More Encyclopedia

The Catholic Encyclopedia is the most comprehensive resource on Catholic teaching, history, and information ever gathered in all of human history. This easy-to-search online version was originally printed between 1907 and 1912 in fifteen hard copy volumes.

Catholic Encyclopedia

Designed to present its readers with the full body of Catholic teaching, the Encyclopedia contains not only precise statements of what the Church has defined, but also an impartial record of different views of acknowledged authority on all disputed questions, national, political or factional. In the determination of the truth the most recent and acknowledged scientific methods are employed, and the results of the latest research in theology, philosophy, history, apologetics, archaeology, and other sciences are given careful consideration.

No one who is interested in human history, past and present, can ignore the Catholic Church, either as an institution which has been the central figure in the civilized world for nearly two thousand years, decisively affecting its destinies, religious, literary, scientific, social and political, or as an existing power whose influence and activity extend to every part of the globe. In the past century the Church has grown both extensively and intensively among English-speaking peoples. Their living interests demand that they should have the means of informing themselves about this vast institution, which, whether they are Catholics or not, affects their fortunes and their destiny.

Copyright © Catholic Encyclopedia. Robert Appleton Company New York, NY. Volume 1: 1907; Volume 2: 1907; Volume 3: 1908; Volume 4: 1908; Volume 5: 1909; Volume 6: 1909; Volume 7: 1910; Volume 8: 1910; Volume 9: 1910; Volume 10: 1911; Volume 11: - 1911; Volume 12: - 1911; Volume 13: - 1912; Volume 14: 1912; Volume 15: 1912

Catholic Online Catholic Encyclopedia Digital version Compiled and Copyright © Catholic Online


Newsletter Sign Up icon

Stay up to date with the latest news, information, and special offers

Subscribe to Catholic OnlineYouTube Channel

the FEED
by Catholic Online

  • Woman diagnosed with 'nightmare bacteria' in US
  • St. Maximinus of Trier: Saint of the Day for Sunday, May 29, 2016
  • Your Daily Inspirational Meme: He will never leave you
  • Daily Readings for Sunday, May 29, 2016
  • Advent Prayer HD Video
  • WARNING: Exorcist claims demon is targeting families
  • Daily Reading for Wednesday, June 1st, 2016 HD Video

Daily Readings

Reading 1, Jude 1:17, 20-25
17 But remember, my dear friends, what the apostles of our Lord Jesus ... Read More

Psalm, Psalms 63:2, 3-4, 5-6
2 Thus I have gazed on you in the sanctuary, seeing your power and your ... Read More

Gospel, Mark 11:27-33
27 They came to Jerusalem again, and as Jesus was walking in the Temple, ... Read More

Saint of the Day

Saint of the Day for May 28th, 2016 Image

Bl. Margaret Pole
May 28: Martyr of England. She was born Margaret ... Read More