Solar Observations

Our Sun is a main sequence G2 yellow dwarf star that is in a continuous state of transformation. It can be one of the most interesting celestial objects to observe through a telescope. There is always something new to see as the sunspot groups evolve during their westward journey across the Sun's surface. Susan Delaney is an experienced solar observer and active member of the Solar Division of the American Association of Variable Star Observers (AAVSO), an International organization that collects and archives solar data from amateur and professional astronomers who collaborate globally to provide continuous coverage of the Sun. The solar data is used to calculate the monthly American Relative Sunspot Numbers (RA). One of the author's solar observations was featured as part of a special exhibit for Sun-Earth day at the Boston Museum of Science. This book is a compilation of the author's solar observations made during 2002 to 2011. The scientific data documents solar activity during Solar Cycles 23 and 24.