3 ms·

Here's a delta-V map of the solar system: http://i.imgur.com/SqdzxzF.png http://i.imgur.com/SqdzxzF.png

• jhrmnn 7y ago
  Interesting! I would have never guessed that starting from Earth, getting to Mars is harder (by about 5%) than escaping the Solar system.
  • Agathos 7y ago
    Well, there's "I want to match Mars' orbit around the Sun, so I can orbit the planet," and then there's "I want to intersect Mars' orbit just as the planet is passing through so I smack into its surface and leave a big crater." The latter takes a lot less delta v, but it has its drawbacks. Leaving the solar system, you don't have to budget for that rendezvous.
• labawi 7y ago
  That seems like a orbit/landing chart. Doesn't seem accurate for head-on collisions. Or am I reading it wrong? As a counter example, someone mentioned nearly leaving and then cheaply coming back directly into the sun.
  • deleted 7y ago
    [deleted]