19P/Borrelly (0019P)

Type: Periodic Perihelion date: 1 February 2022 Perihelion distance (q): 1.3 Aphelion distance (Q) : 5.9 Period (years): 6.9 Eccentricity (e): 0.64 Inclination (i): 29.3 JPL orbit diagram COBS lightcurve The comet was discovered by Alphonse Borrelly during a routine search for comets at Marseilles, France on December 28, 1904. On September 21, 2001 the spacecraft Deep Space 1, which was launched to test new equipment in space, performed a flyby of Borrelly. It was steered toward the comet during the extended mission of the craft, and presented an unexpected bonus for the mission scientists. Despite the failure of a system that helped determine its orientation, Deep Space 1 managed to send back to Earth what were, at the time, the best images and other science data from a comet. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 04-Feb-16 17.99 0.07 15.0 0.2 04-Mar-16 18.41 0.04 15.3 0.2 30-Mar-16 18.39 0.10 15.4 0.2 13-Apr-16 18.55 0.07 15.6 0.2 02-May-16 18.38 0.05 15.3 0.2