I finished the Planetary Config Spreadsheet I have been working on during my down time at work. Well, finished the first version of it, anyway. I managed to do it all with no VBScript, so you don't have to worry about macro viruses. If you are interested and you have some time, I would love some feed-back. If you think it is handy and easy to use or not. What else you think I should include in it. Any suggestions regarding layout or content at all would be helpful. Of course you are free to have a copy, and you can give to anyone you wish if anyone would want it. Just make sure they know that I don't guarantee the results and I still want to perform more error checking and testing on it. If you would like to help me out, you could check if it is accurate. I think it is accurate, I double checked all the equations, plus I checked the output of a bunch of configurations manually and came up with no errors. I would appreciate any feedback/input you would like to offer. The worksheet is protected, but if you want to see any of the equations I used or anything just let me know, and I will post them here. http://www.geocities.com/talorweb/planetary_config.htm I plan on expanding on some of the functionality. I want it to show planet configuration and placement: Such as how many planets can you place evenly spaced. What your angular spacing increment would be if your planets can't be evenly spaced. I also plan on adding more accute configurability (such as adjustable centerlines) and possibly more interactivity. Doing it without VBScript really limits what I can do. I may have to abandon trying to keep it VBScript-free to build some of the additional stuff into it. Thank you.