Lalande 21185 is a red dwarf star in the constellation of Ursa Major. Although relatively close by, it is only magnitude 7 in visible light and thus is too dim to see with the unaided eye. The star is visible through a small telescope.[11]

At approximately 8.31 light-years (2.55 parsecs)[1] away this star is the fourth closest stellar system to the Sun; only the Alpha Centauri system, Barnard's Star and Wolf 359 are known to be closer.[7] Because of its proximity it is a frequent subject for astronomical surveys and other research and thus is known by numerous other designations. Research papers most commonly use the designations BD+36 2147, Gliese 411, and HD 95735 to refer to this star.[3]

In approximately 19,900 years Lalande 21185 will be at its closest distance of about 4.65 ly (1.43 pc) from the Sun.[12][13] Kinematic calculations show that, among currently known stars, only Proxima and Alpha Centauri AB will be closer to the Sun at that moment.[citation needed]

Excerpt from Wikipedia.