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🪐 Astronaut Hohmann Transfer Planner

🪐 Astronaut Hohmann Transfer Planner

Estimate the two burns, coast time, departure phase angle and repeat opportunity for a coplanar Hohmann transfer between circular orbits around the same central body.

Idealised transfer presets
Total ideal Δv
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Transfer coast
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Departure phase
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Synodic repeat
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Two-body, impulsive, circular and coplanar model only. Interplanetary figures are heliocentric burns—not launch or capture costs—and omit spheres of influence, inclination, eccentricity, planetary gravity, aerobraking and finite launch windows.

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