Misura del diametro solare ad almucantarat zero
Costantino Sigismondi

TL;DR
This paper demonstrates a method to accurately measure the solar diameter at almucantarat zero using sunset videos, achieving a few arcseconds precision with a simple setup.
Contribution
It introduces a novel approach utilizing sunset video recordings at the horizon to determine the solar diameter with high accuracy.
Findings
Achieved a few arcseconds accuracy in solar diameter measurement.
Used 60 fps video recordings of sunsets at the horizon.
Validated the method with data from four sunsets on the Tyrrhenian Sea.
Abstract
Among several methods for accurate measurements of solar diameter, there are transits at fixed almucantarat used in solar astrolabes. The almucantarat is a circle of given height. The horizon circle is the zero almucantarat, and data from four sunsets on the Tyrrenian sea are discussed. The angular diameter of the Sun is recovered with a few arcseconds accuracy using 60 fps video of sunsets.
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Taxonomy
TopicsSolar and Space Plasma Dynamics · Solar Radiation and Photovoltaics · Stellar, planetary, and galactic studies
