'Sickle of the Gods', one of the constellations set in the heavens by Varda to enlighten the awakening of the elves and gathered by Varda from among the ancient stars (Silmarillion, Chap. 3; cf. MR 71, 160). Other constellations were Wilwarin, Telumendil, Soronúmë, Anarríma and [Menelmacar]] (or Telumehtar).
Valacirca is by far the most important constellation in the heavens of Arda. It is also the first to appear in the mythology that J.R.R. Tolkien begun to develop in the 1910's.
Another name-form: Valakirka