426 Hippo
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| Discovery A | |
|---|---|
| Discoverer | Auguste Charlois |
| Discovery date | August 25, 1897 |
| Alternate designations B |
1897 DH |
| Category | Main belt |
| Orbital elements C | |
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| Eccentricity (e) | 0.105 |
| Semi-major axis (a) | 431.921 Gm (2.887 AU) |
| Perihelion (q) | 386.554 Gm (2.584 AU) |
| Aphelion (Q) | 477.289 Gm (3.19 AU) |
| Orbital period (P) | 1791.881 d (4.91 a) |
| Mean orbital speed | 17.53 km/s |
| Inclination (i) | 19.54° |
| Longitude of the ascending node (Ω) |
311.733° |
| Argument of perihelion (ω) |
218.928° |
| Mean anomaly (M) | 128.076° |
| Physical characteristics D | |
| Dimensions | 127.0 km |
| Mass | unknown |
| Density | unknown |
| Surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | unknown |
| Spectral class | unknown |
| Absolute magnitude | 8.42 |
| Albedo (geometric) | unknown |
| Mean surface temperature |
unknown |
426 Hippo is a very large Main belt asteroid.
It was discovered by Auguste Charlois on August 25, 1897 in Nice.
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