| | 133P/(7968) Elst-Pizarro = P/1996 N2 (Elst-Pizarro) |
 | | The orbit has a very low inclination (1.4 degrees) and the distance from the Sun varies from 2.63AU at perihelion to 3.69AU at aphelion, thus there is nothing in the orbit to make it look in any way unusual. |
 | | 1996, three months after perihelion, Eric Elst and Guido Pizarro, detected a faint tail and also noted that the “asteroid” was 2-3 magnitudes brighter than usual, although no coma was present. |
 | | The comet passed perihelion again at the end of November 2001 and again, several months after perihelion a tail was detected, although it was much fainter and any photometric outburst had an amplitude of less than one magnitude. |
| astrosurf.com /comets/cometas/133p/Analysis/133pElst-Pizarro.htm (325 words) |