A Typical Sun-Spot, 1873

A_Typical_Sunspot_circle.jpg
_hanging_A_Typical_Sunspot_sq_sml.jpg
10x10
10x10
FrameDetail.jpg
A_Typical_Sunspot_circle.jpg
_hanging_A_Typical_Sunspot_sq_sml.jpg
10x10
10x10
FrameDetail.jpg

A Typical Sun-Spot, 1873

from 35.00

(After Langley)

'The grains, or "nodules", as Herschel called them, are then seen to be irregularly rounded masses, measuring some hundreds of miles each way, sprinkled upon a less brilliant background, and making much the same impression as snowflakes sparsely scattered over a greyish cloth, to use the comparison of Professor Langley... He and Secchi seem to be so far the only observers who have ever fairly seen them.'

Young, C.A. (1888) The Sun. Third Edition edn. London: Kegan Paul, Trench & Co.

5 x 5" (127 x 127mm) Mount with a 3.43" (87mm) aperture
10 x 10" (254 x 254mm) Mount with a 6" (152mm) aperture
11.15 x 11.15 x 1.77" (283.3 x 283.3 x 45mm) Edge to edge of black hand-crafted solid wood box-frame

Size:
Quantity:
Add To Cart