(21029) Adorno

Asteroid (21029) Adorno
Properties of the orbit ( animation ) Epoch: August 5, 2019 ( JD 2,458,700.5)
Orbit type	Main belt asteroid
Asteroid family	Koronis family
Major semi-axis	2.8721 AU
eccentricity	0.0541
Perihelion - aphelion	2.7167 AU - 3.0274 AU
Inclination of the orbit plane	3.2698 °
Length of the ascending node	116.1245 °
Argument of the periapsis	227.4089 °
Sidereal period	4.87 a
Physical Properties
Medium diameter	4.491 ± 0.433 km
Albedo	0.241
Absolute brightness	14.2 mag
history
Explorer	EW Elst
Date of discovery	October 7, 1989
Another name	1989 TA ₆ , 1998 MH ₃₅
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items.

(21029) Adorno is an asteroid of the main belt , which on 7 October 1989 by the Belgian astronomer Eric Walter Elst at the La Silla Observatory ( IAU code 809) of the European Southern Observatory in Chile was discovered.

On September 19, 2013, the asteroid was named after the German philosopher , sociologist , music theorist and composer Theodor W. Adorno (1903–1969), who, along with Max Horkheimer, is one of the main representatives of the direction of thought called critical theory and, together with him, the dialectic of Enlightenment wrote.

(21029) Adorno is a member of the Koronis family, a group of asteroids named after (158) Koronis .

Individual evidence