Luyten's Star [SEP] constellation
Luyten's Star
Luyten's Star (GJ 273) is a red dwarf in the constellation Canis Minor located at a distance of approximately from the Sun. It has a visual magnitude of 9.9, making it too faint to be viewed with the unaided eye. It is named after Willem Jacob Luyten, who, in collaboration with Edwin G. Ebbighausen, first determined its high proper motion in 1935.
Properties.
This star is approximately a quarter the mass of the Sun and has 35% of the Sun's radius
LP 816-60
LP 816-60 is a red dwarf star of spectral type M4, located in constellation Capricornus at 18.6 light-years from Earth.
History of observations.
The discovery name of this star is LP 816-60, which indicates that its discovery was published between 1963 and 1981 in University of Minnesota, Minneapolis.
LP 816-60 is known at least from 1979, when it was included to Luyten's catalogue NLTT.