コンパクト銀ぎん河が

noun

compact galaxy

Astronomical term for a galaxy with a small angular size and high surface brightness; often used in contrast with diffuse or extended galaxies.

• コンパクト銀ぎん河がは、中ちゅう心しんに明あかるい核かくを持もつことが多おおい。

  Compact galaxies often have a bright nucleus at their center.

• この観かん測そくでは、遠えん方ぽう宇う宙ちゅうに多た数すうのコンパクト銀ぎん河がが見みつかった。

  In this observation, many compact galaxies were found in the distant universe.