Nada.
Do Silmarillion, capítulo 1:
But as the ages drew on to the hour appointed by Ilúvatar for the coming of the Firstborn, Middle-earth lay in a twilight beneath the stars that Varda had wrought in the ages forgotten of her labours in Eä.
Capítulo 3:
Middle-earth lay in a twilight under the stars. While the Lamps had shone, growth began there which now was checked, because all was again dark.
Também o Capítulo 3:
Then Varda went forth from the council, and she looked out from the height of Taniquetil, and beheld the darkness of Middle-earth beneath the innumerable stars, faint and far.
E o capítulo 11:
These things the Valar did, recalling in their twilight the darkness of the lands of Arda; and they resolved now to illumine Middle-earth and with light to hinder the deeds of Melkor.