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Main-belt asteroid From Wikipedia, the free encyclopedia
348 May is a large Main belt asteroid.[2] It was discovered by Auguste Charlois on 28 November 1892 in Nice, and was named for the German author Karl May.[4] This asteroid is orbiting the Sun at a distance of 2.97 AU with a period of 5.12 years and an eccentricity (ovalness) of 0.067. The orbital plane is inclined at an angle of 9.7° to the plane of the ecliptic.[2] During its orbit, this asteroid has made close approaches to the dwarf planet Ceres. For example, in September 1984 the two were separated by 6.3 Gm (0.042 AU).[5]
![]() Orbital diagram | |
Discovery | |
---|---|
Discovered by | Auguste Charlois |
Discovery date | 28 November 1892 |
Designations | |
(348) May | |
Pronunciation | German: [ˈmaɪ] |
Named after | Probably Karl May[1] |
1892 R | |
Main belt | |
Orbital characteristics[2] | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 123.36 yr (45,056 d) |
Aphelion | 3.16969 AU (474.179 Gm) |
Perihelion | 2.76919 AU (414.265 Gm) |
2.96944 AU (444.222 Gm) | |
Eccentricity | 0.067437 |
5.12 yr (1,869.0 d) | |
21.8117° | |
0° 11m 33.418s / day | |
Inclination | 9.74506° |
90.0424° | |
13.4397° | |
Physical characteristics | |
Dimensions | 82.82±2.2 km |
Mass | 9.47×1020 kg[3] |
Mean density | 2.09±0.05 g cm−3[3] |
7.3812 h (0.30755 d) | |
0.0448±0.002 | |
9.40 | |
Analysis of the asteroid light curve generated from photometric data collected during 2007 provided a rotation period of 7.385±0.004 h with a brightness variation of 0.16±0.03 in magnitude. This is consistent with an estimate from a 2006 study.[6] It is classified as a G-type asteroid[5] and spans a diameter of approximately 83 km.[2]
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