1098 Hakone
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| Discovery A | |
|---|---|
| Discoverer | Okuro Oikawa |
| Discovery date | September 5, 1928 |
| Alternate designations B |
1928 RJ |
| Category | Main belt |
| Orbital elements C | |
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| Eccentricity (e) | 0.117 |
| Semi-major axis (a) | 402.459 Gm (2.690 AU) |
| Perihelion (q) | 355.397 Gm (2.376 AU) |
| Aphelion (Q) | 449.520 Gm (3.005 AU) |
| Orbital period (P) | 1611.729 d (4.41 a) |
| Mean orbital speed | 18.10 km/s |
| Inclination (i) | 13.364° |
| Longitude of the ascending node (Ω) |
329.127° |
| Argument of perihelion (ω) |
81.019° |
| Mean anomaly (M) | 221.523° |
| Physical characteristics D | |
| Dimensions | 24.7 km |
| Mass | 1.6×1016 kg |
| Density | ?/cm³ |
| Surface gravity | 0.0069 m/s² |
| Escape velocity | 0.0131 km/s |
| Rotation period | ? d |
| Spectral class | ? |
| Absolute magnitude | 10.2 |
| Albedo (geometric) | ? |
| Mean surface temperature |
~170 K |
1098 Hakone is a minor planet orbiting the Sun. Initially it received the designation 1928 RJ. It was named for the Japanese city of Hakone, Kanagawa.
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