συνανατολή

Τούτου δὲ ὃ μέν τι καλεῖται ἑῴα μὴ φαινομένη ἐπανατολή, ὅταν ὁ ἀστὴρ ἀρχόμενος κρύψιν ποιεῖσθαι μετὰ τὸν ἥλιον εὐθέως αὐτὸς ἀνατείλῃ, ὃ δέ τι καλεῖται ἑῴα συνανατολὴ ἀληθινή, ὅταν ὁ ἀστὴρ ἅμα καὶ κατὰ τὸ αὐτὸ γένηται τῷ ἡλίῳ ἐπὶ τοῦ πρὸς ἀνατολὰς ὁρίζοντος, ὃ δέ τι καλεῖται ἑῴα προανατολὴ φαινομένη, ὅταν ὁ ἀστὴρ ἀρχόμενος ἐπιτολὴν ποιεῖσθαι προανατείλῃ τοῦ ἡλίου.

‘And of this, one is called a dawn invisible following rising, when the star which is starting to make a disappearance is rising itself directly after the sun, and another is called a true dawn simultaneous rising, when the star comes at the same time and at the same place as the sun at the eastern horizon, and another is called a dawn visible leading rising, when the star which is starting to make a heliacal rising is rising before the sun.’