Numerical value of AU

[hannorein]

Not a huge issue, but do you have any thought on whether it would make sense to update the value of AU to the one adopted by the IAU? It's not a huge difference...

149597870.7 
149597870.69098932

[attipaci]

Yes, I think that would make sense. It's not going to make a huge difference, but might as well use the more precise value. I'll add the change onto the v1.0.1 branch. (I'll have to update the regression test data also...)