Fried's parameter derived from observations of granulation outside the disk centre

Rodriguez Hidalgo, I.; Collados, M.; Vazquez, M.
Referencia bibliográfica

(IAU, European Regional Astronomy Meeting, 11th, La Laguna, Spain, July 3-8, 1989) Astrophysics and Space Science (ISSN 0004-640X), vol. 170, no. 1-2, Aug. 1990, p. 155-159. Research supported by CICYT.

Fecha de publicación:
8
1990
Número de autores
3
Número de autores del IAC
0
Número de citas
3
Número de citas referidas
3
Descripción
A new method has recently been developed to obtain the Fried's parameter from observations of granulation outside the disk center, based on the different degradation suffered by the images on the directions parallel and perpendicular to the solar limb, due to the geometrical foreshortening. This procedure has been applied to CCD images obtained at the Swedish Solar Tower of the Observatorio del Roque de los Muchachos, with satisfactory results which are presented and discussed.