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Kreusa (minor planet designation: 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.[4]

Kreusa
Discovery[1]
Discovered byMax Wolf
Luigi Carnera
Discovery siteHeidelberg
Discovery date26 June 1902
Designations
MPC designation(488) Kreusa
1902 JG, 1947 KH,
1977 YD, A901 CA, A905 XA[1]
Asteroid belt
Orbital characteristics[1][2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc115.18 yr (42068 d)
Aphelion3.67325 AU (549.510 Gm)
Perihelion2.66507 AU (398.689 Gm)
3.16916 AU (474.100 Gm)
Eccentricity0.15906084
5.64 yr (2060.7 d)
197.66463°
0° 10m 28.913s / day
Inclination11.517875°
84.23348°
71.36554°
Physical characteristics
Mean radius
75.065±3.2 km[1]
81.16 ± 4.77 km[3]
Mass(2.48 ± 1.14) × 1018 kg[3]
Mean density
1.10 ± 0.54 g/cm3[3]
32.666 h (1.3611 d)[1]
0.0589±0.005[1]
C (Tholen)[1]
B−V=0.691±0.06[1]
U−B=0.368±0.030[1]
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.[5]

ReferencesEdit

  1. ^ a b c d e f g h i j "488 Kreusa (1902 JG)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 6 May 2016.
  2. ^ AstDys-2 on (488) Kreusa Retrieved 2012-01-03
  3. ^ a b c Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009.See Table 1.
  4. ^ Fornasier, S.; et al. (February 1999), "Spectroscopic comparison of aqueous altered asteroids with CM2 carbonaceous chondrite meteorites", Astronomy and Astrophysics Supplement, 135: 65−73, Bibcode:1999A&AS..135...65F, doi:10.1051/aas:1999161.
  5. ^ Magri, Christopher; et al. (January 2007), "A radar survey of main-belt asteroids: Arecibo observations of 55 objects during 1999 2003" (PDF), Icarus, 186 (1): 126–151, Bibcode:2007Icar..186..126M, doi:10.1016/j.icarus.2006.08.018, retrieved 2015-04-14.

External linksEdit