stylistic:tone, linguistic:voice_change
Velocity

Under standard assumptions the orbital speed (v {\displaystyle v\,}) of a body traveling along an elliptic orbit can be computed from the Vis-viva equation as:

where:

The velocity equation for a hyperbolic trajectory is v = μ (2 r + | 1 a |) {\displaystyle v={\sqrt {\mu \left({2 \over {r}}+\left\vert {1 \over {a}}\right\vert \right)}}}.