1355 Magoeba

1355 Magoeba, provisional designation 1935 HE, is a Hungaria asteroid and a suspected contact-binary from the innermost regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 30 April 1935, by English-born, South African astronomer Cyril Jackson at the Johannesburg Observatory in South Africa. The asteroid is named for Magoeba, a tribal chief in the South African Transvaal Province.

1355 Magoeba
Discovery
Discovered byC. Jackson
Discovery siteJohannesburg Obs.
Discovery date30 April 1935
Designations
MPC designation
(1355) Magoeba
Named after
Magoeba
(South African chief)
Alternative designations
1935 HE
Minor planet category
main-belt · Hungaria
Orbital characteristics
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc81.71 yr (29,843 days)
Aphelion1.9363 AU
Perihelion1.7707 AU
Semi-major axis
1.8535 AU
Eccentricity0.0447
Orbital period (sidereal)
2.52 yr (922 days)
Mean anomaly
245.86°
Mean motion
0° 23m 26.16s / day
Inclination22.827°
Longitude of ascending node
225.25°
340.40°
Physical characteristics
Dimensions4.276±0.170 km
4.828±0.094 km
5.96 km (calculated)
Synodic rotation period
2.9712±0.0003 h
2.972±0.002 h
2.975±0.002 h
5.946±0.005 h
5.99±0.05 h
31.65±0.05 h
32.9±0.1 h
0.267±0.095
0.3 (assumed)
0.4663±0.0824
0.582±0.049
Tholen = X · M · E · X
B–V = 0.713
U–B = 0.255
13.02±0.22 · 13.05
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