A solar diameter metrology measurement: the Picard microsatellite program
Luc Damé,J. F. Brun,David Cugnet,Marc Derrien,Claude Leroy,Mustapha Meftah,Mireille Meissonnier,Jacques Porteneuve +7 more
- Vol. 10569, pp 1056914
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TLDR
The PICARD microsatellite mission as mentioned in this paper provides 3 to 4 years simultaneous measurements of the solar diameter, differential rotation and solar constant to investigate the nature of their relations and variabilities.Abstract:
The PICARD microsatellite mission will provide 3 to 4 years simultaneous measurements of the solar diameter, differential rotation and solar constant to investigate the nature of their relations and variabilities. The major instrument, SODISM, is a whole Sun imaging telescope of O110 mm which will deliver an absolute measure (better than 4 mas) of the solar diameter and solar shape. Now in Phase B, PICARD is expected to be launched by 2005. We recall the scientific goals linked to the diameter measurement with interest for Earth Climate, Space Weather and Helioseismology, present the instrument optical concept and design, and give a brief overview of the program aspects.read more
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Concentrator Pointing Control Concept for Fiber Optic Augmented Solar Thermal Propulsion Systems
Paul Henshall,Phil Palmer +1 more
TL;DR: Concentrator pointing control concept for fiber optic augmented solar thermal propulsion systems was proposed in this paper for the first time in the context of solar energy propulsion systems and fiber optic communications.
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Analysis of Solar Diameter Measurements Made at the Basilica of San Petronio during and after the Maunder Minimum
TL;DR: In this paper, a series of measurements of the solar diameter taken in the meridian line of the Basilica of San Petronio (Bologna, Italy) between 1655 and 1736 has been analyzed.
References
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