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Discovery and designation
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| Discovery date | , |
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Designations
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| MPC designation | 2153 |
| Alternate name(s) | 1978 XD |
| Epoch May 14, 2008 | |
| Ap | 3.6189095 |
| Peri | 2.6218303 |
| Eccentricity | 0.1597694 |
| Orbital period | 2013.2955803 |
| Mean anomaly | 173.11282 |
| Inclination | 1.18800 |
| Longitude of ascending node | 47.96511 |
| Argument of peri | 30.44184 |
| Geometric albedo | 0.1089 |
| Absolute magnitude (H) | 11.90 |
2153 Akiyama (1978 XD) is a main belt asteroid. Named in memory of Kaoru Akiyama (1901-1970), a professor at Hosei University, Tokyo, during 1930-1940 and 1949-1970, well known for his work on minor planets. Initially in collaboration with K. Hirayama, he made the first detailed study of the orbit of 153 Hilda, which has 2:3 orbital resonance with Jupiter. This name was proposed by K. Tomita.[1]
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