Heights of faculae above the photosphere, based on observation of the eclipse of July 31, 1981

Details Heights of faculae above the photosphere, based on observation of the eclipse of July 31, 1981 Heights of faculae above the photosphere, based on observation of the eclipse of July 31, 1981

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984azh....61..530a&link_type=abstract

(Astronomicheskii Zhurnal, vol. 61, May-June 1984, p. 530-534) Soviet Astronomy (ISSN 0038-5301), vol. 28, May-June 1984, p. 310

Astronomy and Astrophysics

Astronomy

Faculae, Photosphere, Solar Eclipses, Spectroheliographs, Astrometry, Height, Lunar Limb, Solar Limb

Scientific paper

The relative times of contacts of the lunar and solar limbs for undisturbed sections of the photosphere and faculae are determined from slitless spectrograms of the total solar eclipse of July 31, 1981. A comparison of the observed times of local contacts and those calculated with allowance for the lunar relief showed that in active regions the apparent limb lies above the undisturbed photosphere by an average of about 120 km. The results obtained for the eclipse of July 10, 1972, are confirmed.

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