Go to home page The 150-Foot Solar Tower
Sunspot Drawing References

Among the standard references for explaining the methodology of visually measuring sunspot magnetic fields are:

Hale, George E. and Nicholson, Seth B.: 1938, Carnegie Institution of Washington Publication, No. 498, 'Magnetic Observations of Sunspots 1917 - 1924, Part 1.'

[Image of book]
Bray, R. J. and Loughhead, R. E.: 1965, John Wiley and Sons, Sunspots. (Also available as a Dover reprint.)

[Image of book]

See also: Hale, George E., et. al.: 1919, Astrophysical Journal, Vol. 49, 'The Magnetic Polarities of Sunspots.'

Go back to 150-Foot Solar Tower Sunspot Drawing Page
Return to 150-Foot Solar Tower Home Page

Page design was last updated on July 22, 1996, Larry Webster.