| 释义 |
DubheenUK
Dub·he D5423400 (dŭb′ē)n. The brightest star in the constellation Ursa Major, approximately 123 light years from Earth. It is one of the seven stars that form the Big Dipper and aligns with Merak to point to Polaris.
[Medieval Latin, from Arabic ẓahr al-dubb al-'akbar, the back of the Great Bear, from dubb, bear; see dbb in Semitic roots.]DubheenUK
Dubhe (dûb -hay) (α UMa) An orange-yellow giant that is one of the seven brightest stars in the Plough and is one of the two Pointers. It is a close visual binary (period 44 years) with a 4th-magnitude companion. mv : 1.79; Mv : –0.8; spectral type: K0 IIIa; distance: 33 pc. |