## Hohmann transfer orbit |

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In **Hohmann transfer orbit** (^{[1]}^{[2]}^{[3]}^{[4]}

A Hohmann transfer requires that the starting and destination points be at particular locations in their orbits relative to each other. Space missions using a Hohmann transfer must wait for this required alignment to occur, which opens a so-called

The *Die Erreichbarkeit der Himmelskörper* (*The Attainability of Celestial Bodies*).^{[5]} Hohmann was influenced in part by the German science fiction author * Two Planets*.

- explanation
- calculation
- example
- worst case, maximum delta-
*v* - application to interplanetary travel
- hohmann transfer versus low thrust orbits
- see also
- references
- sources
- external links

The diagram shows a Hohmann transfer orbit to bring a spacecraft from a lower circular orbit into a higher one. It is one half of an *1* on diagram) and the higher circular orbit that it wishes to reach (red and labeled *3* on diagram). The transfer (yellow and labeled *2* on diagram) is initiated by firing the spacecraft's engine in order to accelerate it so that it will follow the elliptical orbit; this adds energy to the spacecraft's orbit. When the spacecraft has reached its destination orbit, its orbital speed (and hence its orbital energy) must be increased again in order to change the elliptic orbit to the larger circular one.

Due to the

The Hohmann transfer orbit is based on two *perigee burn* and the *apogee burn* (or '^{[6]}); more generally, they are labelled *periapsis* and *apoapsis* burns. Alternately, the second burn to circularize the orbit may be referred to as a *circularization burn*.

An ideal Hohmann transfer orbit transfers between two circular orbits in the same plane and traverses exactly 180° around the primary. In the real world, the destination orbit may not be circular, and may not be coplanar with the initial orbit. Real world transfer orbits may traverse slightly more, or slightly less, than 180° around the primary. An orbit which traverses less than 180° around the primary is called a "Type I" Hohmann transfer, while an orbit which traverses more than 180° is called a "Type II" Hohmann transfer.^{[7]}^{[8]}

Other Languages

العربية: مدار هوهمان الانتقالي

беларуская: Гоманаўская траекторыя

български: Хоманова траектория

català: Òrbita de Hohmann

čeština: Hohmannova elipsa

dansk: Hohmann-bane

Deutsch: Hohmann-Transfer

español: Órbita de transferencia de Hohmann

فارسی: مدار هوهمان

français: Orbite de transfert

한국어: 호만 전이 궤도

हिन्दी: होहमान्न स्थानांतरण कक्षा

Bahasa Indonesia: Orbit transfer Hohmann

italiano: Trasferimento alla Hohmann

עברית: מסלול הוהמן

magyar: Hohmann-pálya

日本語: ホーマン遷移軌道

norsk: Hohmann-bane

polski: Manewr transferowy Hohmanna

português: Órbita de transferência de Hohmann

română: Transfer orbital Hohmann

русский: Гомановская траектория

Simple English: Hohmann transfer orbit

slovenčina: Hohmannova prechodová dráha

suomi: Hohmannin siirtorata

svenska: Hohmannbana

Türkçe: Hohmann transfer yörüngesi

中文: 霍曼轉移軌道