Spectra of Brorsen's and Winnecke's comets
compared with the spectra of the sun, Carbon, and a nebula. From H. Schellen,
Spectrum Analysis in its Application to Terrestrial Substances, and
the Physical Constitution of the Heavenly Bodies (London, 1872), fig.
Map of Mars, by Leo Brenner, based on observations
1894-1901 (according to the the caption, while the dates on the map are
1894-1897). From Leo Brenner, Neue Spaziergänge durch das Himmelszelt
(Lussinpiccolo, 1904), tafel 3.
A drawing of Mars in 1899 by Leo Brenner.
From Leo Brenner, Neue Spaziergänge durch das Himmelszelt (Lussinpiccolo,
1904), fig. 2.
Lunar landscape. From Camille Flammarion,
Himlens under: Causerier i populär astronomi (Stockholm, 1870)
The solar corona and prominences. Photographed
by the Crocker eclipse expedition, Alhama, Spain, August 30, 1905. From
W.W. Campbell and C.D. Perrine, "The Lick Observatory-Crocker Eclipse
Expedition to Spain", PASP, vol. 18 (1906), 13-36 (picture
facing title page of the volume).
Sun spots and "Willow Leaf" objects.
Observed by James Nasmyth. From James Nasmyth, Autobiography
edited by Samuel Smiles. Picture taken from the on-line
edition published by Eric Hutton (used here with permission). © Eric