For Giovanni Bianchini (1410-ca. 1449), see Giovanni Bianchini.

Francesco Bianchini (December 13, 1662 – March 2, 1729) was an Italian philosopher and scientist. Events 1294 - Saint Celestine V abdicates the papacy after only five months Celestine hoped to return to his previous life Events 986 - Louis V becomes King of the Franks. 1127 - Assassination of Charles the Good Year 1729 ( MDCCXXIX) was a Common year starting on Saturday (link will display the full calendar of the Gregorian calendar (or a Common Italy (Italia officially the Italian Republic, (Repubblica Italiana is located on the Italian Peninsula in Southern Europe, and on the two largest Philosophy is the study of general problems concerning matters such as existence knowledge truth beauty justice validity mind and language A scientist, in the broadest sense refers to any person that engages in a systematic activity to acquire Knowledge or an individual that engages in such practices He worked for the curia of three popes, including being camiere d`honore of Clement XI, and secretary of the commission for the reform of the calendar, working on the method to calculate the astronomically correct date for Easter in a given year. A Curia in early Roman times was a subdivision of the people i While the term " Pope " ( Latin: papa "father'" is used in several Churches to denote their high spiritual leaders ( e The word Calendar consist of two words 1 Cal ( in Pashto means Year in Hindi and Persian is Sal- also means Year Easter ( Greek: Πάσχα Pascha or Pasxa) is the most important religious feast in the Christian Liturgical year.

A gnomon in the south wall of the Santa Maria degli Angeli e dei Martiri projects the sun's image onto Bianchini's line every solar noon

He published many books, including La Istoria universale, and Hesperi et Phosphori nova Phaenomena… in which he deduced a rotational period from the observation of the surface of Venus. The gnomon is the part of a Sundial that casts the Shadow. Gnomon (γνώμων is an Ancient Greek word meaning "indicator" "one who The VENUS ( V ictoria E xperimental N etwork U nder the S ea project is a cabled sea floor observatory operated by the University Today, we know that this is impossible, because of the thick cloud cover on this planet. A planet, as defined by the International Astronomical Union (IAU is a celestial body Orbiting a Star or stellar remnant that is He also worked on the parallax of Venus, and he measured the precession of the Earth's rotational axis. Parallax is an apparent displacement or difference of orientation of an object viewed along two different lines of sight and is measured by the angle or semi-angle of inclination between EARTH was a short-lived Japanese vocal trio which released 6 singles and 1 album between 2000 and 2001

As part of his efforts to improve the accuracy of the calendar, Bianchini constructed an important meridian line in the basilica of Santa Maria degli Angeli e dei Martiri in Rome, a device for calculating the position of the sun and stars. Santa Maria degli Angeli e dei Martiri (English St Mary of the Angels and the Martyrs) is a Basilica church in Rome, built inside the frigidarium Rome ( Roma ˈroma Roma is the capital city of Italy and Lazio, and is Italy's largest and most populous city with more than 2

His point of view on the Copernican system is not evident, but it was noted that the picture of the planetary system in his book about Venus has an empty center. In Astronomy, the geocentric model of the Universe is the superseded theory that the Earth is the center of the universe and other

Craters on Mars and the Moon were named in his honor. In the broadest sense the term impact crater can be applied to any depression natural or manmade resulting from the high velocity impact of a projectile with larger body

He also worked as a topographer and archaeologist of ancient Rome, and as a collector.

Books by Bianchini

• Storia universale, provata co' monumenti, e figurata co' simboli degli antichi (Rome, 1697 and 1747
• De vitis romanorum pontificum a Petro Apost. ad Nicolaum I. 4 vol. , Rome, 1718-35
• Hesperi et Phosphori nova phaenomena sive observationes circa planetam Veneris Rome, 1728

External links

• Catholic Encyclopedia engl.
• Kurzbeschreibung Hesperi et Phosphori nova phaenomena…
• Bianchini's Globe of Venus, 1727. Astronomical Museum Museo della Specola, Bologna