Talk:Porkchop plot

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Meaning of v_infinity

The article says " ${\textstyle v_{\infty }\,}$ is the orbital velocity when the orbital distance tends to infinity". I don't really understand this definition, especially in the context of the pork-chop plot. Wouldn't the orbital velocity tend to zero as distance approaches infinity? Obviously I'm missing something. Can someone explain this concept in more detail in the article, possibly with an example? 2607:FEA8:E31F:FBC1:C0A8:153F:79DA:5A66 (talk) 22:32, 2 November 2021 (UTC)[reply]