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|---|---|
| Discovered by | John Caister Bennett |
| Discovery date | 1969 |
| Designations | |
| Alternative designations | Comet Bennett, 1969 Y1 |
| Orbital characteristics | |
| Epoch | 2440680.5 (April 4, 1970) |
| Aphelion | 282 AU |
| Perihelion | 0.538 AU |
| Semi-major axis | 141 AU |
| Eccentricity | 0.9962 |
| Orbital period | 1678 a |
| Inclination | 90.0° |
| Last perihelion | March 20, 1970 |
| Next perihelion | 3648 |
Comet Bennett, formally known as C/1969 Y1, was one of two brilliant comets to grace the 1970s, along with Comet West.
Discovered by John Caister Bennett on December 28, 1969 while still almost 2 AUs from the Sun, it reached perihelion on March 20, passing closest to Earth on March 26, 1970 as it receded, peaking at magnitude 0. It was last observed on February 27, 1971.