Hello Venus my old friend.

It orbits slower than we do so it gets out of phase with us as it were. That's why the times of it's visibility change from year to year.

Bart.

You mean faster than we do of course!

It orbits slower than we do so it gets out of phase with us as it were. That's why the times of it's visibility change from year to year.

Bart.

You mean faster than we do of course!

Woops, I do indeed.

LOL................i was thinking "slower" didnt look right.

Thanks for the info guys.

It orbits FASTER than we do so it gets out of phase with us as it were. That's why the times of it's visibility change from year to year.

BUT surely the speed at which we both orbit the sun and the path of our orbits around the sun remain constant....................so shouldnt Venus appear at the same dates in the same position year in year out.

It's all relative............................give or take a wobble and tilt.............but even the wobbles and tilts of the planets are the same every year...........so shouldnt the "times of it's visibility" remain a constant too?

Am i missing some important factor here? such as the expansion of the universe? BUT even that is a constant.................even though it is speeding up rather then slowing down as you would expect.