The title page of Kepler’s “Astronomia Nova” (1609),
in which he advanced his first two laws.
(Courtesy of Jay M. Pasachoff)
The title page of Kepler’s “Harmonices Mundi” (1619),
in which he advanced his third law.
(Courtesy of Jay M. Pasachoff)
The title page of Kepler’s “Rudolphine Tables,”
from which he predicted transits
of Mercury and of Venus in 1631.
Copernicus’s famous sun-centered diagram
from his “De Revolutionibus” (1543).
(Courtesy of Jay M. Pasachoff)
Digges’s version, the first in English, of Copernicus’s
sun-centered diagram, published in several editions
starting in 1576. (Courtesy of Jay M. Pasachoff)
Kepler: from the Rudolphine Tables (1627)
Cover of the US Naval Observatory book
“Instructions for Observing the Transit of Venus”
with the signature of Truman Henry Safford,
Director of Williams College’s
Hopkins Observatory from 1876-1902.