There are at least 2 bands named Luminary:

1. Now defunct collaboration between British producer Laurence Rapaccioli (Arksun) and Ashley Tomberlin, a previously unknown vocalist and musician from the United States. After completing a few initial tracks, they lost touch until the fall of 2003 when they began to take another look at the music they had created the previous year. With a renewed sense of purpose, the musical partnership finally gelled, and Luminary was born.

They created and released 4 productions together, and uploaded one final track to their Myspace page upon the announcement of their split in October, 2007:

My World (2005) - Lost Language
Wasting (2005) - Soundpiercing
Amsterdam (2006) - Anjunabeats
Dark Eyes (2006) - Solaris Recordings
Believe (2007) - Myspace

2. A Black/Death Metal band from Sweden.
They released a Demo in 2004 Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.