A tourist flight burns propellant in three discrete manoeuvres: trans-lunar
injection (leaving Earth orbit), lunar orbit insertion (braking into orbit
around the Moon) and a powered descent to the surface habitat. Each burn
is drawn as a bright thruster flare along the arc.
Ξv_total = Ξv_TLI + Ξv_LOI + Ξv_landing
m_fuel/m0 = 1 β e^(βΞv/(IspΒ·g0)) (Tsiolkovsky rocket equation)
dose β dose0 Β· trip_duration Β· e^(βΞΌΒ·shield)
- Delta-v budget β total velocity change available; tighter budgets force a slower, more efficient trajectory.
- Radiation shield β thicker hull shielding exponentially reduces the galactic cosmic ray dose over the multi-day transit.
- Trip duration β longer transits accumulate more radiation but need less delta-v (a low-energy transfer trade-off).