Cygnus A

Cygnus A (3C 405) is a radio galaxy, and one of the strongest radio sources in the sky. It was discovered by Grote Reber in 1939. In 1951, Cygnus A, along with Cassiopeia A, and Puppis A were the first "radio stars" identified with an optical source. Of these, Cygnus A became the first radio galaxy; the other two being nebulae inside the Milky Way. In 1953 Roger Jennison and M K Das Gupta showed it to be a double source. Like all radio galaxies, it contains an active galactic nucleus.

单词	Cygnus A
释义	Cygnus A 英语百科 Cygnus A Cygnus A (3C 405) is a radio galaxy, and one of the strongest radio sources in the sky. It was discovered by Grote Reber in 1939. In 1951, Cygnus A, along with Cassiopeia A, and Puppis A were the first "radio stars" identified with an optical source. Of these, Cygnus A became the first radio galaxy; the other two being nebulae inside the Milky Way. In 1953 Roger Jennison and M K Das Gupta showed it to be a double source. Like all radio galaxies, it contains an active galactic nucleus.
随便看	SURCINGLES B68B的意思 surcingless的意思 surciour的意思 surcle的意思 surcles的意思 surcloyed的意思 surcloying的意思 surcloys的意思 Surco的意思 surcoat的意思 surcoat的意思 surcoat的意思 surcomplex的意思 Surcopur的意思 surcrease的意思 surcrescent的意思 surcrew的意思 surcroist的意思 surcrue的意思 surcucu的意思 surcudant的意思 surcul的意思 surculate的意思 surculation的意思 surculi的意思