2MASS J0441+2301 (abbreviated as 2M 0441+23) is a young quadruple system hosting a planetary-mass object, a red dwarf star and two brown dwarfs, approximately 470 light years (145 parsecs) away.

[8] The primary component Aa has a spectral type of M4.5 and a red apparent magnitude of 14.2.

[3] Both components seem to be accreting mass from their stellar disks, as shown by their emission lines.

The companion is very large with respect to its parent and must have formed within 1 million years or so.

This seems to be too big and too fast to form like a regular planet from a disk around the central object.