# Hohmann Transfer

A Hohmann transfer orbit is a type of elliptical orbit used to transfer a spacecraft from one circular orbit to another by using a minimum amount of propellant. It is named after Walter Hohmann, a German engineer who first described the technique in 1925.

Earth Ending Degree | 0° |
---|---|

Delta V1 | 2,942 m/s |

Earth Orbit Velocity | 30 km/s |

Mars Starting Degree | 0° |

Delta V2 | 2,657 m/s |

Mars Orbit Velocity | 24 km/s |

Semi Major Axis | 188,760,000 km |

Hohmann Orbit Velocity | 27 km/s |

Total Delta V | 5,598 m/s |

Travel Time | 259 days |