- The
Eratosthenian period in the
lunar geologic timescale runs from 3,200
million years ago to 1,100
million years ago. It is
named after the
crater Eratosthenes...
- Earth's Moon into five
generally recognized periods: the Copernican,
Eratosthenian,
Imbrian (Late and
Early epochs), Nectarian, and Pre-Nectarian. The...
- 4th-century Gr****
astronomer and mathematician. The
crater is from the
Eratosthenian period,
which lasted from 3.2 to 1.1
billion years ago. It is 17 kilometers...
- near the
exterior of the
southwest wall.
Diophantus is a
crater of
Eratosthenian age. This
cleft follows a
generally east–west path
across the Mare Imbrium...
- Five
geologic systems/periods (Pre-Nectarian, Nectarian, Imbrian,
Eratosthenian, Copernican), with the
Imbrian divided into two series/epochs (Early...
- Imbrian/
Eratosthenian boundary in 2013. A
number of
sites on its
walls and
central peak have
slopes over 45°,
leading some to
propose a Late
Eratosthenian dating...
- is of the
Imbrian and
Eratosthenian age.
Bullialdus crater, a
prominent feature on the west side of the mare, is of
Eratosthenian age.
Other features within...
- Regiomont****, and to the
north is the
remains of Blanchinus. It is from the
Eratosthenian period,
which lasted from 3.2 to 1.1
billion years ago. The rim of Werner...
- well as a low,
conical hill near the midpoint.
Peirce is a
crater of
Eratosthenian age. By
convention these features are
identified on
lunar maps by placing...
- is 78
kilometers in
diameter and 2,500
meters deep. It is from the
Eratosthenian period, 3.2 to 1.1
billion years ago. It is
named after David Fabricius...
