Behind this name lies an early story about Vala named Telimektar, son of Tulkas, who apparently was conversed into the constellation of Orion. Apart from the story of Telimektar (q. v.) there are two mentions of Telumehtar the Constellation:
1) In the Appendix E I of The Lord of the Rings the name is quoted as an example of the pronunciation of the consonant H with a reference to Orion, explained in a footnote: "usually called in Sindarin Menelvagor, --- Q[uenya] Menelmacar".
On the etymology of the name, see Appendix 1 in the article Telimektar.
--Tik 08:34, 12 Jun 2005 (EDT)