The proposed names ǂKá̦gára and ǃHãunu are from the mythology of the ǀXam people of South Africa. ǂKá̦gára and his brother-in-law ǃHãunu fought an epic battle in the east using thunder and lightning, producing mountainous clouds and rain. The conflict was over ǂKá̦gára's returning his younger sister, ǃHãunu's wife, to their parents. The proposed names must be approved by the International Astronomical Union's Working Group for Small Body Nomenclature before they become official. In the ǀXam language, the names are thought to have been pronounced and, respectively. The initial letters ǂK and !H represent some of the many click consonants that characterize ǀXam and other San languages. The diacritic under or after the first 'a' in ǂKá̦gára/ǂKaʻgara indicates that it is a pharyngealized vowel, which are also characteristic of San languages. Usually, when speaking English, the click consonants in words from ǀXam and other San languages are simply ignored, resulting in and . ASCII approximations of the names are =Ka'gara and !Haunu.
Orbit and occultations
ǂKá̦gára is a cold classical Kuiper belt object. It orbits the Sun at a distance of 44 AU once every 290 years. Its orbit has an eccentricity of 0.09 and an inclination of 3° with respect to the ecliptic. 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. When ǂKá̦gára passes in front of ǃHãunu, events may last as long as 8 hours, but when ǃHãunu passes in front of ǂKá̦gára, they are expected to last as long as 2 days. These latter events are only expected to occur from 2022 to 2027.
Formation
Prograde orbits dominate tight binary systems such as 469705 ǂKá̦gára, those with satellite semimajor axes less than about 5% of their Hill radii. Grundy et al. suggest that this could be "the signature of planetesimal formation through gravitational collapse of local density enhancements such as caused by the streaming instability", which has been suggested as the formative mechanism of the only visited planetesimal, 486958 Arrokoth.
Satellite, size and mass
469705 ǂKá̦gára has one known satellite, ǃHãunu. The magnitude difference between ǂKá̦gára and ǃHãunu is mag. This corresponds to a difference in diameter of 13%, if the two bodies have the same albedo. The system mass is, and, given the albedo, the bodies are equivalent to a single sphere of diameter. This corresponds to a density of. This does not particularly constrain the composition of the bodies, as the error bars cover the densities of both small, porous bodies and larger, collapsed bodies. Assuming the two bodies have the same albedo and density, their masses are and, and their diameters are and.
