Mórchiorcal

Ciorcal ar dhromchla sféir, a phlána ag dul trí lár an sféir. Is é an fad is giorra idir dhá phointe ar dhromchla sféir ná ar feadh an mhórchiorcail. Ar an Domhan, is mórchiorcail na línte domhanfhaid.[1]

Tagairtí

  1. Hussey, Matt (2011). "Mórchiorcal". Fréamh an Eolais. Coiscéim. p. 469.
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