Transfer angles

[Cat Grill Friend]

What are the optimum transfer angles for each planet? For some reason I can never get a straight answer.

[Jupiter3927]

The wiki should have angles listed.
The mod 'Kerbal Alarm Clock' has a transfer window calculator built in and tells you exactly when they are.

If you want to find the angle between any two planets, you'll have to take the orbit exactly between your 2 planets, find how long half of that orbit takes, and calculate how far each planet moves during that time.

[Azunai]

there's also an online calculator for KSP transfer windows.

https://alexmoon.github.io/ksp/

[Quebert]

Originally posted by Dr. Burn:

I can never get a straight answer.

because the transfer windows are angled
...sorry

[Toucan27]

Straight answers are so often just not possible.
First you must decide what your idea of an optimal transfer is, a shorter travel time or a lower delta-v expenditure, then you can work out your optimal departure plan.

[Event_Horizon]

first, press the tab button untill you are centered on Kerbool (the sun). Now find Kerbin, and find the planet that you want to go to. Draw an imaginary line from Kerbin to the sun, than another from the target planet to the sun. Now, find the angle of that line. The closer it is to that angle, the better.

Moho: ~110° Behind Kerbin
Eve: ~54° Behind Kerbin
Duna: ~45° Ahead of Kerbin
Dres: ~75° Ahead of Kerbin
Jool: ~90° Ahead of Kerbin
Eeloo: ~105° Ahead of Kerbin

[Quizzical]

It depends some on where in the orbit you are, especially for highly elliptical orbits such as Moho and Eeloo. If you want an efficient transfer, it also helps if you arrive almost right at the ascending or descending node, at least for the highly inclined Moho, Dres, and Eeloo.