Artist's rendering of extremely cold T-type brown dwarf

NOAO-Spitzer Synergy |  Data from the NOAO Deep Wide-Field Survey and the MARS optical spectrometer on the Mayall 4-meter telescope at Kitt Peak were combined with observations from the Spitzer Space Telescope to help astronomers discover an extremely cold T-type brown dwarf. Spitzer Release

Artwork credit: NASA/JPL-Caltech/R. Hurt (SSC/Caltech)