11 citations · 18 across the 9 of their papers we have counts for
3 papers · 1 filter
Venus transits: history and opportunities for planetary, solar and gravitational physics
Costantino Sigismondi, Xiaofan Wang, Patrick Rocher +1
The data of 2012 transit of Venus are compared with the ones of 2004. The thickness of the atmosphere of Venus, its aureole and the effect of oblateness and other asphericities in…
Low frequency seeing and solar diameter measurements
Costantino Sigismondi
The action of the atmospheric seeing is blurring, image stretching and image motion. This happens even to the image of the Sun which is more than half degree wide. Low frequency se…
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…