606 Brangäne, provisional designation 1906 VB, is an asteroid from the central regions of the asteroid belt, approximately 36 kilometers (22 miles) in diameter. It was discovered on 18 September 1906, by astronomer August Kopff at the Heidelberg Observatory in southwest Germany.^[1] The unusual K-type asteroid is the namesake of the small Brangäne family and has a rotation period of 12.3 hours.^[10] It was named after Brangaine, a character from the opera Tristan und Isolde by Richard Wagner.^[2]

Brangäne is the principal body of the stony Brangäne family,^[4][13] a small asteroid family of less than 200 known members.^[14] It orbits the Sun in the central main-belt at a distance of 2.0–3.2 AU once every 4 years and 2 months (1,520 days; semi-major axis of 2.59 AU). Its orbit has an eccentricity of 0.22 and an inclination of 9° with respect to the ecliptic.^[3]

In the SMASS classification, Brangäne is an uncommon K-type asteroid,^[3] while in the Tholen classification its spectral type is ambiguous, closest to a T-type and somewhat similar to that of an S- and D-type.^[3]

This minor planet was named after Brangaine, a character from the opera Tristan und Isolde by Richard Wagner. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 64).^[2]