-
primary body to the
orbiting body when the
latter is located: 1) at the
periapsis point, or 2) at the
apoapsis point (compare both graphics,
second figure)...
- "longitude of
periapsis" or "longitude of periastron" are
often used
synonymously with "argument of
periapsis". In
astrodynamics the
argument of
periapsis ω can...
- the
longitude of
periapsis (e.g., mean
longitude and true longitude) will also be compound. Sometimes, the term
longitude of
periapsis is used to refer...
- If an
impulsive burn of Δv is
performed at
periapsis in a
parabolic orbit, then the
velocity at
periapsis before the burn is
equal to the
escape velocity...
- body will be at
periapsis. If this is less than planet's
radius an
impact should be expected. The
distance of
closest approach, or
periapsis distance, is...
-
between the
apoapsis and
periapsis. The
portion of the semi-major axis
extending from the
primary at one
focus to the
periapsis is
shown as a
purple line...
-
point in its orbit. The
maximum (instantaneous)
orbital speed occurs at
periapsis (perigee, perihelion, etc.),
while the
minimum speed for
objects in closed...
-
longitude of
periapsis for Dysnomia's orbit,
which is 307°±12°.: 5 The
longitude of
periapsis is the sum of the
ascending node and
argument of
periapsis, so subtracting...
- are seen with
Venus and Neptune. As two
objects orbit each other, the
periapsis is that
point at
which the two
objects are
closest to each
other and the...
- : 25, 62–63 For
elliptical orbits it can also be
calculated from the
periapsis and
apoapsis since r p = a ( 1 − e ) {\displaystyle r_{\text{p}}=a\,(1-e)}...
