Definition of "solar physics" [solar physics]

• The branch of astronomy that deals with the sun (noun)

WordNet. Princeton University. 2010.

• "At Stonyhurst, while he greatly developed the meteorological work of the observatory, and in the province of astronomy made frequent observations of Jupiter's satellites, of stellar occultations, of comets, and of meteorites, it was in the department of solar physics that he specially laboured, particular attention being paid to spots and faculæ."