Help with getting to Duna?

[kerbonaut101]

I can get to and land probes on the Mun and Minmus with no problem, but I keep missing Duna by 3,000,000km to 10,000,000km. What am I doing wrong? How could I approve my approach?

[Sauron]

That's not very specific. How exactly are you missing Duna? If you're flying by it without getting an encounter, you can make a mid-course correction to bring yourself into Duna's SOI. Past that (and the correct timing of your launch windows) orbiting a planet is exactly like orbiting the Mun. You are using maneuver nodes, yes?

[Vanamonde]

If you're getting that close already, wait until you get halfway there, place a maneuver node, and move the little markers around until you get an intercept. There's nothing wrong with mid-course corrections; real space agencies use them.

[vnv2799]

Next time you wish to go to Duna, try to time your launch by using this helpful tool by using the "phase angle" to find the most efficient angle for Kerbin and Duna to be in.