Brown/yellow observation of the Sun, 23 July 1905

PART OF:
Observations of the Sun and Jupiter by John Willis
Made:
1905 in Folkestone

Brown/yellow observation of sunspots made by John Willis on 23 July 1905 at 5:35pm. On the reverse Willis has noted: "Much faculae in neighbourhood of spots on preceding limb. JW" Faculae are areas of greater brightness on the Sun that are hotter; sunspots are cooler. One of 275 pencil, ink and colour wash observations of the Sun and Jupiter made by Willis in Folkestone between 1879 and 1906.

Details

Category:
Art
Object Number:
2001-769/179
Materials:
paper, pencil, ink, col. wash
Measurements:
overall: 138 mm x 176 mm
type:
drawing
credit:
Sotheby's (Olympia)