one of the closest black holes blasting gas in this way". He added, "The findings, presented at the 227th meeting of the American Astronomical Society (AAS) in Florida, are a dramatic example of 'feedback' between a supermassive black hole and its host galaxy". Webb's report cited Marie Machacek, co-author of the study from the Harvard–Smithsonian Center for Astrophysics (CFA), as saying, "We think that feedback keeps galaxies from becoming too large ... But at the same time, it can be responsible for how some stars form. This shows that black holes can create, not just destroy." Morphology As a consequence of the gravitational interaction with the Whirlpool Galaxy, NGC 5195 is highly distorted. Classification of its morphology is difficult, as it is sometimes identified as a lenticular galaxy or as an amorphous or irregular galaxy. It has been described as falling outside the standard morphological classification system. Supernova Supernova 1945A is the only supernova that has been detected within NGC 5195. The supernova was found 10″ northwest of the nucleus on April 6, 1945, by Milton L. Humason using the telescope at Mount Wilson Observatory. The supernova, classified as a Type I supernova, reached a peak apparent magnitude of 14.0. See also NGC 1097 Dwingeloo 1 References External links SEDS: Irregular Galaxy M51B (NGC 5195) Irregular galaxies Interacting galaxies Peculiar galaxies LINER galaxies M51 Group Canes Venatici Messier objects 5195 08494 47413 085 Astronomical objects discovered in 1781 Discoveries by Pierre Méchain