| Minorplanet: | yes |
| 426 Hippo | |
| Background: |
|
| Discovered: | 25 August 1897 |
| Mpc Name: | (426) Hippo |
| Alt Names: | 1897 DH |
| Named After: | Hippo Regius (Ἱππών Hippōn) |
| Adjective: | Hipponian [1] |
| Epoch: | 31 July 2016 (JD 2457600.5) |
| Semimajor: | 2.8893AU |
| Perihelion: | 2.5893AU |
| Aphelion: | 3.1893abbr=onNaNabbr=on |
| Eccentricity: | 0.10384 |
| Period: | 4.91 yr (1793.8 d) |
| Inclination: | 19.4771° |
| Asc Node: | 311.419° |
| Arg Peri: | 222.319° |
| P Semimajor: | 2.88928 |
| P Eccentricity: | 0.179526 |
| P Inclination: | 20.3798° |
| P Mean Motion: | 73.2862 |
| Perihelion Rate: | 32.8357 |
| Node Rate: | −59.8571 |
| Rotation: | 34.3abbr=onNaNabbr=on |
| Abs Magnitude: | 8.42 |
| Single Temperature: | 154-171 K |
| Mean Motion: | / day |
| Observation Arc: | 112.19 yr (40977 d) |
| Uncertainty: | 0 |
426 Hippo is a rather large main-belt asteroid. It was discovered by Auguste Charlois on August 25, 1897, in Nice. In the 22nd century, it will come closer than 0.04abbr=onNaNabbr=on to the larger asteroids 65 Cybele and 511 Davida.