Astronomy and Astrophysics – Astronomy
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009spd....40.1101c&link_type=abstract
American Astronomical Society, SPD meeting #40, #11.01; Bulletin of the American Astronomical Society, Vol. 41, p.825
Astronomy and Astrophysics
Astronomy
Scientific paper
Photometric images have been obtained on a daily basis since 1986 at the San Fernando Observatory. We will compare sunspot and facular areas from cycle 22 with those of cycle 23. Both spot areas and facular areas were lower during the maximum of cycle 23 compared to cycle 22. The distribution in spot areas will be compared. The extended minimum in spot area following cycle 23 is delaying the beginning of cycle 24. This work has been partially supported by NSF grant ATM-0533511.
Chapman Gary A.
Cookson Angela
Preminger Dora
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