'Annual Variations in the Apparent Movement of the Spots', c 1875.
3 6 c m
40cm
actual image size: 32cm x 28cm

'Annual Variations in the Apparent Movement of the Spots', c 1875.

© Science Museum / Science & Society Picture Library

Description

Plate taken from 'Le Soleil' (Paris, 1875) by Angelo Secchi, showing the annual movement of sunspots. 'The trajectories described by the spots vary with the season: [For instance,] in March (sphere B) they are very elongated ellipses turning their convexity to the north, the great axis of the ellipse being almost parallel to the ecliptic.' The curves and the inclinations in this figure have been slightly exaggerated, in order to make the variations better understood.
 

Image Ref.

10328111
 

buy a print

Select size
 
Select finish
 
How many prints?
 
£20.00
 

buy a framed print

buy a canvas

buy a framed canvas