I have a nifty little program called AstroSynthesis that, among other things, has a travel time calculator with presets for 1%, 5%, 10% lightspeed, as well as an acceleration-based calculator.
The interstellar stuff I actually wrung out the hard way in an Excel spreadsheet for another project.---
Mr. Fnord
http://fnord.sandwich.net/
http://www.jihad.net/
Mr. Fnord interdimensional man of mystery
FenWiki - Your One-Stop Shop for Fenspace Information
"I. Drink. Your. NERDRAGE!"
The interstellar stuff I actually wrung out the hard way in an Excel spreadsheet for another project.---
Mr. Fnord
http://fnord.sandwich.net/
http://www.jihad.net/
Mr. Fnord interdimensional man of mystery
FenWiki - Your One-Stop Shop for Fenspace Information
"I. Drink. Your. NERDRAGE!"