2 citations · 2 across the 5 of their papers we have counts for
5 papers
Lo Gnomone Clementino: Astronomia Meridiana in Chiesa dal '700 ad oggi
Costantino Sigismondi
The Clementine Gnomon is a giant pinhole dark camera dedicated to meridian solar astrometry operating in the Basilica of Santa Maria degli Angeli in Rome. Pope Clement XI ordered F…
Moti e distanze angolari in cielo con telescopio e cronometro
Costantino Sigismondi
A basic telescope and a chronometer can be used to learn classical methods of spherical astronomy. The conjunction Venus-Saturn of July 2, 2007 has been observed through July 3 wit…
Misure quantitative del seeing atmosferico
Costantino Sigismondi
A simple technique of measurement of seeing in daytime and nighttime, based upon drift-scan observations, is presented, along with observational examples. This experience can be re…
Incontri celesti, vita del padre Clavio in cinque atti
Costantino Sigismondi
The year 2012 will be the fourth centennial year of the Jesuit Christopher Clavius (1535-1612), known as the Euclid of XVI century and the collaborator of the Pope Gregory XIII for…
L'Epistolario di Gerberto, papa astronomo
Costantino Sigismondi
A new Italian edition of the Letters of Gerbert, the astronomer, scientist and philosopher who become pope Silvester II, with their papal privileges has been published in the occas…