Ah, but the curve isn't going around a bend.

If it is, you have to turn your head.

Hubble is very good at this, but does have limiting factors such as making
sure it doesn't point at the Earth or the Moon while doing this. So if the
object is in-plane, it has to "look-away" during part of every orbit.

If it's looking above or below the poles, I believe it can continue to look
the entiretime.



"daedalus" wrote in message
. uk...
If you look sideways out of your moving car at a distant building, you
dont have to move your head as the object stays in the same direction. The
further away it is the longer it seems to stay in the same place. Hubble
is looking at objects millions of miles away so will appear in the same
point of space even though Hubblle is moving around 8000 miles in either
direction.


--
Greg Moore
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