NGC 3811

NGC3811 is a barred spiral galaxy in the constellation of Ursa Major. Its velocity with respect to the cosmic microwave background is, which corresponds to a Hubble distance of. Additionally, 12 non-redshift measurements give a similar mean distance of. It was discovered by German-British astronomer William Herschel on 9 February 1788.
NGC 3811 is a starburst galaxy. It is also a galaxy whose nucleus shines in the ultraviolet range, and is thus listed in the Markarian catalogue as Mrk 185.

Supernovae

Two supernovae have been observed in NGC 3811:SN1969C was discovered by Italian astronomer Leonida Rosino on 9 February 1969, and independently by Jankovits on 11 February 1969.SN1971K was discovered by Russian amateur astronomer Piotr Grigor'evich Kulikovsky on 12 June 1971.