Aldebaran	Borgil
Arcturus	Tinnulin
Cassiopeia	Gwilwileth
Crescent moon	Cúron
Firmament (heavens)	Menel
Full moon	Ithil
Jupiter	Aglarad
Mars	Carngil
Mercury	Elvir
Moon	Raun
Neptune	Luingil
New moon	Cýron
Orion	Menelvagor
Pleiades	Remmirath
Saturn	Lumbar
Sirius	Helluin
Sun	Anor
Star	Geil
Stars	Gîl/Giliath
Uranus	Nenon
Ursa Major	Balagerch/Cerch iMbelain
Venus	Aerennil

Although Aerennil is simply the Sindarin form of 'Eärendil' in Tolkien's mythos the Mariner was not just a man with a Silmaril bound to his brow, he was the Morning/Evening Star (Venus).
"Far he journeyed in that ship, even into the starless voids; but most often was he seen at morning or evening, glimmering in sunrise or sunset, as he came back to Valinor from voyages beyond the confines of the world."

The name Eärendil comes from an Old English word that Tolkien found particularly euphonic - Earendel, a name in a poem referring to the personification of the morning star.