View of coronal hole processed from television transmission of ATM

S73-32883 (20 Aug. 1973) --- This false color isophote, processed from an Aug. 20, 1973 television transmission of Apollo Telescope Mount (ATM) experiments from Skylab 3, dramatically reveals a significant change in the coronal hole as compared to the previous day. Solar rotation accounts for the new location of the coronal hole. Photo credit: NASA