Comet
8P/Tuttle
A comet with a 13.6-year period and a two-lobed nucleus. It is the source of the Ursid meteor shower in late December; last perihelion 2021, next 2035.
| Type | Comet |
|---|---|
| Parent body | Sun |
| Radius | 2 km · 3.53 × 10⁻⁴ R⊕ |
| Mass | 7.000 × 10¹³ kg · 1.17 × 10⁻¹¹ M⊕ |
| Mean density | 1.47 g/cm³ |
| Rotation period | 11.4 hours |
| Orbital radius | 5.71 AU (Sun) |
| Eccentricity | 0.821 |
| Orbital period | 13.6 years |
| Discovery | 1790, P. Méchain; 1858, H. Tuttle |
| Period | 13.6 years |
| Meteor shower | Ursids (22 December) |