Fraser Cain (September 15, 2008). "Temperature of the Sun". Universe Today. Diarsipkan dari versi asli tanggal 2010-08-29. Diakses tanggal 19 February 2011.
Fraser Cain (September 15, 2008). "Temperature of the Sun". Universe Today. Diarsipkan dari versi asli tanggal 2010-08-29. Diakses tanggal 19 February 2011.