She doesn't have a phone, she's a witch.
The sprits of the earth
They are Spectrespecs, used to see 'wrackspurts', which according to Luna are creatures that float in through your ears and make your brian go fuzzy.
If you have a post-owl, it will deliver her your letter without an address. Otherwise you have asked the wrong question.
the Lovegoods live nearest to the Weasleys. Luna and Xenophelius live in a house that is shaped like a chess rook.
Her exact birthday is unknown but she was born between September of 1980 and August 1981.
It is very unlikely that any Malfoy would be attracted to someone outside Slytherin, and certainly not to as eccentric a family as the Lovegoods. Pureblood is an extremely important concept to Draco, he is probably unable to even notice that Luna is a girl.
Luna doesn't die.
Luna Leopold died in 2006.
Félix Luna died in 2009.
Jonathan Luna died in 2003.
Gregory Luna died in 1999.