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588 Achilles
Discovery
Discovered by Max Wolf
Discovery date February 22, 1906
Designations
1906 TG
Trojan asteroid
Orbital characteristics
Epoch October 22, 2004 (JD 2453300.5)
Aphelion 890.944 Gm (5.956 AU)
Perihelion 662.395 Gm (4.428 AU)
776.669 Gm (5.192 AU)
Eccentricity 0.147
4320.803 d (11.83 a)
13.00 km/s
157.779°
Inclination 10.324°
316.583°
132.770°
Physical characteristics
Dimensions 135.5 km
Mass 2.6×1018 kg
Mean density
2.0 g/cm³
0.0379 m/s²
0.0716 km/s
>0.5 d 1
Albedo 0.0328 2
Temperature ~124 K
Spectral type
D
8.67

588 Achilles is an asteroid found on February 22, 1906 by the German astronomer Max Wolf. It was the first of the Trojan asteroids to be found, and is named after Achilles, the fictional hero from the Iliad. It orbits in the L4 Lagrangian point of the Sun-Jupiter system. After a few such asteroids were found, the rule was made that the L4 point was the "Greek camp", while the L5 point was the "Trojan camp", though not before each camp had acquired a "spy" (624 Hektor in the Greek camp).

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