Last Updated：2025/12/02

(astronomy) The span of time between successive heliacal risings of the star Sirius, equivalent to almost precisely 365¼ days.

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Sothic year

Source Word

Sothic year

Noun

(astronomy) The span of time between successive heliacal risings of the star Sirius, equivalent to almost precisely 365¼ days.

Japanese Meaning

(天文学) シリウスのヒラカル昇星の連続した二回分の間隔、ほぼ正確に365¼日に相当する期間

Ancient Egyptian priests used the Sothic year, tied to the heliacal rising of Sirius, to calibrate their calendar.

古代エジプトの祭司たちは、シリウスのヘリアカル昇起が再び現れるまでの期間（ほぼ365.25日）を使って暦を調整していた。

Sense（1）

(astronomy) The span of time between successive heliacal risings of the star Sirius, equivalent to almost precisely 365¼ days.

Sothic years

（ plural ）