These are the star signs of the Covenant's Zodiac:

Ursus, the Bear
06 December - 30 January
Poculum, the Cups
24 June - 12 July
Pulex, the Flea
31 January - 19 February
Curra, the Trickster
13 July - 02 August
Aratum, the Plough
20 February - 09 April
Venatus, the Hunter
03 August - 26 Hesper
Serpens, the Snake
10 April - 33 May
Cuniculus, the Rabbit
27 Hesper - 16 November
Vacca, the Cow
34 May - 23 June
Bubo, the Owl
17 November - 05 December