On the "calends" (the first day of the month), and the "nones" (around the fifth day of the month), this assembly met to hear announcements.
The date (in this calendar system) was measured "forward" to upcoming days such as the calends, nones or ides.
At that time, a very brightly-shining star ("stella clarissima") entered into the circle or the circuit or the new moon, in the thirteenth calends at the beginning of the night.
On the "calends" (the first day of the month), and the "nones" (the fifth or seventh day of the month), this assembly met to hear announcements.