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Originally Posted by Grant
Quote:
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Originally Posted by Tensor
Sorry Grant, that explanation won't fly. A member of our astronomy club set the polar altitude on his pier mount (with a go-to) several years ago (when he built his observatory building). If the tilt of the earth has changed since, the goto would not work because the altitude (of the polar location) would be different. But, as of last Saturday, his go-to's were spot on. Indicating the tilt of the earth hasn't changed.
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Your GOTO scope is referencing a changing sky now, it uses the same technology to predict paths |
Nope, the angle to polar north, on that scope, has not changed. If it had, the go-to's would not work as the go-to would start from the wrong initial position (not to mention the polar position would not appear in the same place, which is does, in the polar scope).