Celestia Forums

Just a test to see what an Alderson Disk might look like. As this isn't a model, I couldn't figure out how to texture the Disk.

I was wondering, what, if anything could survive a full scale nuclear war? I keep hearing that only cockroaches could survive, but what about anything else? How would it affect Earth (or any other habitable planet) in the long run (in the scale of thousands to millions of years)? And how would it a...

How do I determine the geosynchronous orbit for a satellite around a given planet? I tried using astrosynthesis, but it doesn't work very well at computing that when making planets from scratch. :? To compute a "geosynchronous" (Clarke) orbit for a given planet, one needs to know: 1) the ...

For reference, how much is Earth's tides? Also, the planet is orbiting Alpha Centauri B, not Alpha Centauri A, as your post seems to imply. You are, of course, correct in your observation that I assumed a Sol-like star (a result of late-night mis-reading). For reference, the mid-ocean tides on Eart...

As a first approximation, the mid-ocean tides raised on this planet range from a minimum of 48.8 cm to a maximum of 81.4 cm. This tidal range, unlike on Earth, is dominated by stellar gravitation rather than the gravitational effect of its satellite(s). The smaller satellite (Moon-1) contributes a m...

I was a 9-year-old in Alexandria, VA that day. Like lots of others my age, I was fascinated by anything having to do with space exploration, and I had been following the American space program intently since at least Apollo 8. The awe and wonder I felt watching Armstrong and Aldrin then are brought ...

I've just installed 1.60 on my Windows laptop and it seems to be running fine. However, I have noticed a slight discrepancy in the distances between stars. For example, Simbad lists the distance from Earth to HIP 105075 as 0.49 mas (6563.3 LY); 1.60 shows the same distance as 1353.4 LY. I realize th...

This is one of my personal favorites:

http://www.dailymotion.com/video/x50d6z ... nska_music

Radtech

The obsession continues....

Just before sunset, this one from the sixth planet in the fourth orbit....

Just after sunrise on the fifth planet in the fourth orbit around pi-3 Orionis (an ongoing example of a creative obsession )