NGC 3187, also known as HGC 44D, is a large barred spiral galaxy located in the constellation Leo.

Its velocity relative to the cosmic microwave background is 1,901 ± 22 km/s, which corresponds to a Hubble distance of 28.0 ± 2.0 Mpc (~91.3 million ly).

[1] NGC 3187 was discovered by Irish physicist George Stoney in 1850.

[2] The luminosity class of NGC 3187 is III and it has a broad HI line.

LSB galaxies are diffuse galaxies with a surface brightness less than one magnitude lower than that of the ambient night sky.