perigeum
Earth insertion
LEM
LM
abutment
abuttal
adjacency
adjoiningness
aphelion
apogee
apposition
appulse
astronomical longitude
attitude-control rocket
autumnal equinox
ballistic capsule
burn
capsule
celestial equator
celestial longitude
celestial meridian
circle
colures
conjugation
conjunction
connection
conterminousness
contiguity
coterminousness
deep-space ship
docking
docking maneuver
ecliptic
equator
equinoctial
equinoctial circle
equinoctial colure
equinox
ferry rocket
fuel ship
galactic longitude
geocentric longitude
geodetic longitude
great circle
heliocentric longitude
injection
insertion
junction
juxtaposition
longitude
lunar excursion module
epigee
epigeum
periapsis
point of periapsis
periastron
perihelion
copter
ever-rising
fast-rising
nadir
neap
refluent
versa