Astronomy. = heliacal, adj. 1. Obsolete.
| 单词 | θ761 |
| 释义 | the world > the universe > star > stellar motion > [adjective] > rising or setting (7) sunly1556 Astronomy. = heliacal, adj. 1. Obsolete. cosmical1594 Astronomy. Occurring at sunrise, coincident with the rising of the sun; said of the rising or setting of a star. heliacal1607 Astronomy. Said of the rising of a star when it first emerges from the sun's rays and becomes visible before sunrise, or of its setting when it is… heliac1775 = heliacal, adj. 1. Subcategories:— before sunrise (1) — periodically (1) — never setting (1) |
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