Astronomers have discovered a new class of celestial objects, roughly one-third the temperature of the sun and less than one-tenth its mass.

References: 

Kirkpatrick, J.D. 1998. Meeting of the American Astronomical Society. June. San Diego, Calif.

 

Sources:

Gibor S. Basri
University of California
Department of Astronomy
Berkeley, CA 94720-3411

J. Davy Kirkpatrick
California Institute of Technology
Mailstop 100-22
Pasadena, CA 91125