3 citations
3 papers
astro-ph.SR2012★ 3 cited
Venus transit, aureole and solar diameter
Wenbin Xie, Costantino Sigismondi, Xiaofan Wang +1
The possibility to measure the solar diameter using the transits of Mercury has been exploited to investigate the past three centuries of its evolution and to calibrate these measu…
astro-ph.SR2012
Geometrical information on the solar shape: high precision results with SDO/HMI
Xiaofan Wang, Costantino Sigismondi
The uncertainty of measurement of solar diameter is depending on the observational time scale. Full-disc images of SDO/HMI and the images from ground observations in Huairou Solar…
astro-ph.IM2012
Astronomia di Posizione per Muoni, Algoritmi per foglio elettronico (Positional Astronomy for Muons, Algorithms for electronic spreadsheet)
Costantino Sigismondi
The muons of cosmic rays air showers in the Extreme Energy Events (EEE) project are detected with three Multi-gap Resistive Plate Chambers (MRPC) with good tracking capability. The…