NGC 4051-intermediate spiral galaxy in Ursa Major about 45 million light-years and it was discovered by William Herschel in February 6-1788 .The galaxy sits in the suthern part of a clusters of galaxies known as the Ursa Major Cluster .

Astrophoto equipment :-telescope Vixen Perl VC 200L , cam.Atik 314L+mono , filters LRGB Astronomic  ,mount Skywatcher HEQ5Pro -guided  PHD2 Guiding ,guide cam ZWO asi 120mm mono guide-scop Skywatcher 70/50mm ,exposures L 75x300 sec and R-G-B  15X 300 SEC. 

Location : Babadag - Romania  ,,Scorpius " mini-observatory .