CWISEP J1935-1546

[3] CWISEP J1935-1546 was discovered in 2019 by Marocco et al. as an extremely cold brown dwarf with a temperature range of 270-360 K and a distance of 5.6-10.9 parsec.

[6] According to a NASA press release CWISEP J1935-1546 was discovered by the security engineer[7] and citizen scientist Dan Caselden.

Emission from H+3 was not detected in W1935, likely due the higher density of the brown dwarf, which leads to a shorter lifetime of H+3.

The solar system planets Jupiter and Saturn have an aurora because of interactions with the stellar wind and with particles from active moons, such as Enceladus and Io.

The researchers propose that the aurora around W1935 is caused by either unaccounted internal processes or by external interactions with interstellar plasma or a nearby active moon.