NGC 3726 is a spiral galaxy located in the constellation Ursa Major. It is located at a distance of circa 45 million light years from Earth, which, given its apparent dimensions, means that NGC 3726 is about 85,000 light years across.
It was discovered by William Herschel on February 5, 1788 (Wikipedia)
Imaged at first quarter, meaning the moon was already quite bright. An IDAS -D1 Lightpollution filter was used.