Rektaszension
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At Rektaszension α of a (latiinsk ascensio recta ‚lik apstiigen‘) as ian faan jo tau polaarkoordinaaten uun't ekwatooriaal koordinaatensüsteem faan a astronomii. Det ööder koordinaat as at Deklination.
At rektaszension as tu fergliken mä't geograafisk lengde üüb a eerd. At deklination wiar do det geograafisk breetje.
Ekliptik
[Bewerke | Kweltekst bewerke]A Ekliptik as at skiinboor boon faan üüs san auer a stäärenhemel.
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![](https://upload.wikimedia.org/wikipedia/commons/thumb/0/0a/Ekliptik4.png/220px-Ekliptik4.png)
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