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Title: Higher (H1) calcium vapour surrounding the great sun-spot of [Go to resource]
Description: Higher (H1) calcium vapour surrounding the great sun-spot of 1903, October 10, 10h, 59m. C.S. T., slit at 3967.5 suns diam. = .77 metre taken with the Rumford spectoheliograph and 40-inch refractor of the Yerkes Observatory by G.E. Hale and F. Ellerman License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: black-and-white prints (photographs)
Sun
sun spots
astrophotographsTemporal: 1903 Source: Science Museum Creator: Yerkes Observatory Identifier: 1912-422 Go to resource More Like this...
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