[1] This minor planet was named after Swiss astronomer Fritz Zwicky (1898–1974), who was a professor at Caltech and a pioneer in many fields, most notably in the study of galaxy clusters and supernovas, in high-energy astrophysics, and in developing jet propulsion for spacecraft and airplanes.
[12] Zwicky is a bright, stony S-type asteroid, in line with the overall spectral type for members of the Phocaea family.
[10] Observations by Tom Polakis, who also discovered a satellite (see below) determined a very similar period of (2.7329±0.0002) hours with a brightness variation of (0.105±0.035) (U=2).
[6] These more recent result are replacing a previous observation from March 2003, of a fragmentary lightcurve by French amateur astronomer Laurent Bernasconi that gave a tentative period of 27.1 hours and an amplitude of 0.08 (U=1).
[4][14][15] Photometric observations at the Command Module Observatory (V02) by Tom Polakis on 21 February 2021 revealed, that Zwicky has a satellite in its orbit.