What British astronomer and composer discovered the barred spiral galaxy known as "NGC 4454"?
NGC 4454: NGC 4454 is a barred spiral galaxy located about 123 million light-years away in the constellation of Virgo. NGC 4454:  NGC 4454 was discovered by astronomer William Herschel on April 17, 1784. William Herschel: Frederick William Herschel, (German: "Friedrich Wilhelm Herschel" ; 15 November 1738 – 25 August 1822) was a British astronomer and composer of German and Czech-Jewish origin, and brother of fellow astronomer Caroline Herschel, with whom he worked.
William Herschel