It was discovered on 11 March 2005 by American astronomer Marc Buie at the Kitt Peak Observatory in Arizona.
The ǂKá̦gára–ǃHãunu system is currently undergoing mutual occultation and eclipsing events in which one body casts a shadow on or obstructs the view of the other as seen from Earth.
ǂKá̦gára (also rendered ǂKaʻgara) and his brother-in-law ǃHãunu fought an epic battle in the east using thunder and lightning, producing mountainous clouds and rain.
[3] If the two bodies are spheres with equal density, then mutual occultation events between ǂKá̦gára and its satellite ǃHãunu should have begun in 2015 and should continue until 2035.
[2] Prograde orbits dominate tight binary systems such as 469705 ǂKá̦gára, those with satellite semimajor axes less than about 5% of their Hill radii.
[2] The system mass is (2.18±0.12)×1018 kg, and, given the albedo, the bodies are equivalent to a single sphere of diameter 174+27−32 km.