[2] Previously it was thought that such wide binary brown dwarfs are not formed or at least are disrupted at ages of 1-10 Myrs.

[4] The system was discovered by Kevin Luhman in 2004 during observations of candidate young brown dwarfs in Chamaeleon I, using the Magellan I telescope.

Based on spectral features, such as sodium and potassium absorption lines it was concluded that both brown dwarfs are young and part of Chamaeleon I.

[3] The brown dwarfs in 2M1101AB belong to the youngest substellar members of Chamaeleon I with an approximate age of 1 million years.

[5] Measurements by ESA's Gaia satellite show a similar parallax and proper motion for both brown dwarfs.