Sujet
Remarkable faculae and spots seen on the Sun on the 19th and 20th of July, 1860. Creator: Unknown.
Légende
Remarkable faculae and spots seen on the Sun on the 19th and 20th of July, 1860. 'In your Number of August 25, in describing the phenomena visible at the period of the total eclipse in Spain, I pointed out the possible connection between the luminous prominences and the faculae or bright markings of the sun. It may be of interest to your readers to have an opportunity of seeing a representation of the remarkable group of faculae and spots which came conspicuously into view on...the two days immediately succeeding the eclipse. The drawing from which the Engraving is taken was made by Mr. George Williams, at his observatory at Liverpool, by means of a telescope of four inches aperture, which was made to project a magnified image of the sun, on a screen attached to the telescope. My colleague, Mr. Carrington, also observed this mass of faculae...[on] 18th of July...he determined the position of the spots within the faculae with accuracy, at his observatory at Redhill, and found that they covered an arc reaching from the position angle 114° to that of'125°. The surrounding faculae extended through a greater arc and corresponded in position with some of the brilliant prominences visible in Spain at the period of totality....Warren De La Rue'. From "Illustrated London News", 1860.
Crédit
Photo12/Heritage Images/The Print Collector
Notre référence
HRM23B08_222
Model release
NA
Property release
NA
Licence
Droits gérés
Format disponible
56,9Mo (3,5Mo) / 42,0cm x 34,0cm / 4960 x 4010 (300dpi)