180 citations · 567 across the 24 of their papers we have counts for
5 papers · 1 filter
Atmospheric fluctuations below 0.1 Hz during drift-scan solar diameter measurements
Costantino Sigismondi, Andrea Raponi, Giulia De Rosi +6
Measurements of the power spectrum of the seeing in the range 0.001-1 Hz have been performed in order to understand the criticity of the transits' method for solar diameter monitor…
Solar Limb Darkening Function from Baily's Beads Observations
Andrea Raponi, Costantino Sigismondi
We introduce a method to measure with high resolution the solar diameter from the ground, through the eclipse observations by reconsidering the definition of the solar edge. The ou…
The power spectrum of the seeing during solar observations
Costantino Sigismondi, Andrea Raponi, Xiaofan Wang +3
Measurements of the power spectrum of the atmospheric seeing in the line of sight of the Sun, in the range 0.001-1 Hz, have been performed in Santa Maria degli Angeli Lucernaria Do…
The Measurement of Solar Diameter and Limb Darkening Function with the Eclipse Observations
Andrea Raponi, Costantino Sigismondi, Konrad Guhl +2
The Total Solar Irradiance varies over a solar cycle of 11 years and maybe over cycles with longer period. Is the solar diameter variable over time too? We introduce a new method t…
Towards a unified definition of solar limb during central eclipses and daily transits
Costantino Sigismondi, Andrea Raponi, Cyril Bazin +1
The diameter of the Sun has been measured using Baily's beads during central eclipses, observed with portable telescopes. A blend of tiny emission lines produced in the first sever…