noun
barred spiral galaxy
Astronomical term for a spiral galaxy with a central bar-shaped structure of stars.
天の川銀河は棒渦巻銀河の一種と考えられている。
The Milky Way is thought to be a type of barred spiral galaxy.
渦巻銀河 is a general spiral galaxy, while 棒渦巻銀河 specifically has a central bar structure.
Compound of 棒 (bar), 渦巻 (spiral), and 銀河 (galaxy), directly describing the barred spiral shape.