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You have it right by using Lambert's solution, that what I used in my Trajectory Planner. As for forcing it into the same direction every time, it shouldn't be doing that anyways. Lambert's solution works on the premise that for every Launch Date and every Arrival Date, there is only one...

This is a good place for true color photos of Venus: http://www.mentallandscape.com/C_CatalogVenus.htm

Ok, I've uploaded the new version (v1.1.1) to Orbit Hangar, it's the same as the most recent one I've put up on my site, so if you've already downloaded that one, you don't need to download the one from Orbit Hangar. I also just realized that I'm releasing this on my birthday :P.

Trajectory Planner is a computer program that helps in determining the most optimal trajectory for a spacecraft to transfer from one planet to another. To determine a transfer orbit, the program calculates separate orbits for every possible launch and arrival date combination within a specified...

Ok a few more fixes: -Corrected typo (I wrote "synoptic" when it should be "synodic"). -Corrected problem with clicking near edges, or draging the cross outside of the frame. -After what orb said about the "process continuing" problem, I'm pretty sure I've now corrected it. Trajectory Planner...

Well, at least the big part is working, however I'm completely stumped about the process not terminating. If I don't hear of any other major issues in the next day or so, I'll upload the new one to Orbit Hangar. Now wait till you see my next program ;)

I've completely changed how the imaged is loaded and displayed, so hopefully this fixes the problem for Windows 7 64-bit users. I've also changed the arrows to standard Wingdings, so hopefully everybody has that font and they will show. Lastly, I've also added an "End" command to the...

Wow I feel old now, lol. I was born in '83.

Can other people with Vista or Windows 7 confirm this as a fix?

The program was written and tested on a computer using Windows XP. Unfortunately I don't have access to a computer that uses Windows 7, or Vista for that matter, so I don't really have any good ways of solving this particular problem as it currently works. With that said, I'll look at other...

Bunch of bug fixes, and now a manual is included. Trajectory Planner (1.38 Mb)

A Progress Bar has been added, plus a few other minor alterations: Trajectory Planner (1.04 Mb)

Despite keeping quiet the last few months, I've been working hard on my Trajectory Planner. Trajectory Planner (1.03 Mb) The program now outputs the values for Prograde, Outward, and Inclination velocities for TransX and can create a TransX plan for you to put into Orbiter. Considering that...

:hmm: Hmmm, those modules look familiar, lol. That station is looking really nice btw.

And of course, the good old "Our Probe" prayer that I wrote ages ago: Our Probe, who art in orbit, hallowed be your radio antennae, thy rocket launched, thy scientific data will be done, in Earth orbit, as it is in Lunar orbit. Give us today our daily lunar image. And forgive us our pilot and...

How the heck did I miss that?! Dang I wish I knew about this, I've been wanting something like this for years. lol. Time to start recording my Chapman flights into Celestia.

Good job man! I love that feeling when you land on something the first time, especially Mercury, there's something "exotic" about it.

Another advantage to doing it from the Antarctic, is the lack of civilian "spy" satellites (like the ones used for making Google Maps) looking at the Antarctic. In general there is a lack of observation of the Antarctic, even from government agencies. IIRC, many spy satellites of various...

Utterly epic. Dansteph, you have outdone yourself. I can't wait for the "Universal Car for Orbiter" part. Hopefully with that I'll finally be able to finish my Titan Orbiter/Rover mission that I've been working one.

I think I should hurry up and install Nix and Hydra. They were they only ones on the list I haven't been to yet.