[5] Shortly after the discovery, a paper by Ian Neill Reid et al. used Hubble WFPC2 to search binary L dwarfs and found that 2MASS J0902+3517 is extended in the F814W image, but not in the F606W image, showing that it has a red companion.

[3] Before the multiple status of 2MASS J0920+3517 was discovered, a team used the Subaru Telescope to measure the spectrum of this brown dwarf.

This team found methane in the H- and K-band spectrum which is unusual for an L6.5 type dwarf.

[7] Later a team classified the infrared spectral type as T0pec, suspecting the binary to be composed of an L- and a T-dwarf.

[11] Another study found the most abundant condensates in the top cloud layer of the primary to be 48% iron and 52% silicates.