ICRA Sapienza and ICRANET Pescara
Author in the following contributions
- The Clementine Gnomon (1702) recalibrated to measure stellar aberration
- Solar astrometry at arcsecond level with a pencil, a meter and a watch at the Clementine Gnomon (1702)
- A soccer school field sundial with 20 arcseconds accuracy to study the ecliptic
- Sungrazing comets as General Relativistic gravitational probes
- Visual observations of Betelgeuse near the solar conjunction
- Fall and raise of Betelegeuse
- Betelgeuse as didactic introductory tool for stellar variabilty, airmass computation and spectral analysis
- The three royal summer solstice markers unveiled at Santa Maria degli Angeli meridian line in Rome
- The hypergiants VY Canis Majoris, Eta Carinae, V766 Centauri and the red supergiants Betelgeuse, Antares and Aldebaran in the 2.5K SGQ AAVSO database
- Celestial mechanics and variable stars before the telescope: from the meridian line of the Vatican obelisk (1586-1817), to the stars on Santa Maria degli Angeli meridian line (1702) in Rome.
- Betelgeuse, Sirius and the stars in the roman Settecento