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Brown/yellow observation of sunspots made by John Willis on 23 June 1905 at 5:30pm. On the reverse Willis has noted: "Enlarged view of Group. This group, it will be observed, had become much more developed since the previous day. JW", this is delineated. One of 275 pencil, ink and colour wash observations of the Sun and Jupiter made by Willis in Folkestone between 1879 and 1906.
Title
Brown/yellow observation of the Sun, 23 June 1905
Date
1905
Medium
paper, pencil, ink, col. wash
Accession number
2001-769/144
Acquisition method
Sotheby's (Olympia)
Work type
Drawing