Astrogator
A space-navigational aide for Kerbal Space Program.
See all the transfers that you could choose from your current location at a glance, including the time till the burn and delta V, and turn them into maneuvers with one click.
Automatic maneuver node creation
When you're piloting a vessel, maneuver node icons will appear next to the delta V numbers. Click to create maneuver nodes for that transfer:
These typically give immediate encounters for