Software for Problems

IV.1.1 Sunspots through the solar cycle

You will find below the animation files required to do the problem (1.1) in chapter 1 of part IV of the course. Each file is an animation of one year worth of reconstructed Mt Wilson sunspot data, listed by year.

Spots are plotted on a heliocentric coordinate latitude/longitude coordinate grid projected on the plane of the sky. The grid increments in longitude is 7.5 degrees. The latitudes coordinate lines are plotted at latitudes 0, 15 and 30 degrees (N and S). On days when no data is available the yellow "DATE" label at the bottom of the frames is left out.

1967
1968
1969
1970
1971
1972
1973
1974

Return to ASTR7500 homepage. -Written by paulchar@hao.ucar.edu.

-Last Revised 20 October 1997 by paulchar@hao.ucar.edu.