This is an awesome blog from Dubhe.
Ursa Major is a constellation in the northern sky, whose associated mythology likely dates back into prehistory. Also this name is famous as the Great Bear, liking a big dipper.
Alpha UMa(also name α UMa, Dubhe) is a bright star in Ursa Major. In Chinese, Alpha Ursae Majoris itself is known as 北斗一 Běi Dǒu yī, (English: the First Star of Northern Dipper) and 天樞 Tiān Shū, (English: Star of Celestial Pivot).
To present the dream of people discovering the cosmos the galaxy, I choose this name as my english name, also my blog name.
Long live and prosper.