- When
closest to the Moon (at periapsis) it is said to be at perilune,
pericynthion, or periselene.
These derive from
names or
epithets of the moon goddess...
- For
objects in
lunar orbit, the
point of
least distance are
called the
pericynthion (/ˌpɛrɪˈsɪnθiən/) and the
greatest distance the
apocynthion (/ˌæpəˈsɪnθiən/)...
-
Selene are
reflected in
technical terms for
lunar orbits such as apolune,
pericynthion and selenocentric. The
astronomical symbol for the Moon is a crescent\decrescent...
- performed, with the
result that
Hadley would now be
under the craft's
pericynthion, or low point. The DOI burn was
performed at 082:39:49.09 and took 24...
- and 15 seconds,
braking the
spacecraft into an
orbit with a low
point (
pericynthion) of 58.3 and a high
point (apocynthion) of 170.4
nautical miles (108...
- "PC+2" burn
would take
place two
hours after pericynthion, the
closest approach to the Moon. At
pericynthion, Apollo 13 set the
record (per the Guinness...
- Moon,
during Apollo 11. 14
April 1970 The crew of
Apollo 13
attained pericynthion above the Moon,
setting the
current record for the
highest absolute altitude...
- (110 km)
circular lunar parking orbit to an
elliptical descent orbit with a
pericynthion of 50,000 feet (15,000 m), then
provide a
powered descent to the lunar...
-
lunar orbit with
apocynthion of 169
nautical miles (313 km; 194 mi) and
pericynthion of 58.1
nautical miles (107.6 km; 66.9 mi). A
second burn, at 86:10:52...
-
sometimes used to
refer to the Moon, as in selenography, selenology, and
pericynthion. The
moons of Mars (Phobos and Deimos) were
named by
Asaph Hall in 1878...
