Ancient mariners, whether they be Vikings or South Sea Islanders, would navigate with astronomical bearings by reading the celestial bodies as well as landmarks.

古代的航海家，不管是维京人还是南太平洋岛民，都会携带天文仪出海，以观天象和地标。

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They are able to do so because these records use both compass bearings and astronomical observations to locate a vessel.

他们之所以能够那样做，是因为这些原始记录同时使用了罗盘方位于天文观察来定位一艘航海船。

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