488 Kreusa

488 Kreusa is a C-type asteroid orbiting the Sun in the asteroid belt, with the type indicating a surface with a low albedo and high carbonaceous content. The spectra of the asteroid displays evidence of aqueous alteration.^[5]

Kreusa

Discovery[1]
Discovered by	Max Wolf Luigi Carnera
Discovery site	Heidelberg
Discovery date	26 June 1902
Designations
MPC designation	(488) Kreusa
Pronunciation	/kriːˈuːsə/[2]
Alternative designations	1902 JG, 1947 KH, 1977 YD, A901 CA, A905 XA[1]
Minor planet category	Asteroid belt
Orbital characteristics[1][3]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	115.18 yr (42068 d)
Aphelion	3.67325 AU (549.510 Gm)
Perihelion	2.66507 AU (398.689 Gm)
Semi-major axis	3.16916 AU (474.100 Gm)
Eccentricity	0.15906084
Orbital period (sidereal)	5.64 yr (2060.7 d)
Mean anomaly	197.66463°
Mean motion	0° 10m 28.913s / day
Inclination	11.517875°
Longitude of ascending node	84.23348°
Argument of perihelion	71.36554°
Physical characteristics
Mean radius	75.065±3.2 km[1] 81.16 ± 4.77 km[4]
Mass	(2.48 ± 1.14) × 1018 kg[4]
Mean density	1.10 ± 0.54 g/cm3[4]
Synodic rotation period	32.666 h (1.3611 d)[1]
Geometric albedo	0.0589±0.005[1]
Spectral type	C (Tholen)[1] B−V=0.691±0.06[1] U−B=0.368±0.030[1]
Absolute magnitude (H)	7.81[1]

In 2002, Kreusa was detected by radar from the Arecibo Observatory at a distance of 1.67 AU. The resulting data yielded an effective diameter of 150±21 km.^[6]