According to some sources (Burl?) there was a central stone at Mitchell's Fold too, but if there was and wherever it was, it's gone now.Grahame Gardner wrote:Alas, this is always going to be a limitation in Stellarium because of the need for a central camera position; unless the stone circle is specifically designed for a central viewpoint, as is the case with my Sighthill stones where there is such a central stone. You can't see it in the Stellarium landscape of course, because that's where the camera was sitting...
I've been playing around with the landscape-image, trying to get a better horizon. It makes a big difference, especially regarding the azimuth of sunrise positions. But how to do this when the ground is not even level? I've trying getting the "business-end" to match the horizon of the older version so that sunrises etc. can be compared. Unfortunately it doesn't seem possible to get the two horizons exactly the same for the full 360 degrees.
I noticed that there was a difference of four metres in the GPS altitude value between the old central point and the new one. I decided to use the old value for both, although it doesn't seem to make a huge difference as far as I can tell.