4,667 B.C. Lat. 40° N.
4,667 B.C. Lat. 40° N.
Constellations above Northern Horizon.
Invisible—Noon, Autumn Equinox.
Visible—Midnight, Spring Equinox,
FIG. 1.
PLATE XX.
FIG. 2.
Constellations above Southern Horizon.
Invisible—Noon, Spring Equinox.
Visible—Midnight, Autumn Equinox.
4,667 B.C. Lat. 40° N.