NGC_891 is a spiral galaxy located approximately 30 million light-years away in the constellation Andromeda. It is notable for its edge-on appearance, which allows astronomers to study its structure and dust lanes in detail. Discovered by William Herschel in 1784, NGC 891 spans about 100,000 light-years in diameter. Its bright core and extensive disk make it a popular target for both amateur and professional astronomers, providing insights into galaxy formation and evolution.