A Popular History of Astronomy During the Nineteenth Century Fourth Edition
CHAPTER V
TEMPERATURE OF THE SUN
Thermal Power of the Sun--Radiation and Temperature--Estimates of Solar Temperature--Rosetti's and Wilson's Results--Zoellner's Method --Langley's Experiment at Pittsburg--The Sun's Atmosphere--Langley's Bolometric Researches--Selective Absorption by our Air--The Solar Constant 216