C/2022 U4 (Bok)

DEPARTED

Type: Periodic Perihelion date: 3 August 2023 Perihelion distance (q): 2.9 Aphelion distance (Q) : 7,289 Period (years): 220,133 Eccentricity (e): 1.00 Inclination (i): 52.0 JPL orbit diagram COBS lightcurve The Bok NEO survey with the Kitt Peak 2.25 m reflector discovered a 20th magnitude object on 26 October 2022. Follow-up observations with the Steward Observatory 1- m reflector at Mt Lemmon suggested cometary activity and this was confirmed by other astrometrists. There were prediscovery observations in January, February and March 2022 by PanSTARRS. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 27-Mar-23 18.0 0.4 15-Apr-23 18.1 0.4 17-May-23 18.4 0.4 23-May-23 18.2 0.4 08-Jun-23 18.4 0.4 22-Jun-23 18.2 0.4 19-Jul-23 18.4 0.4 28-Jul-23 18.5 0.4 18-Aug-23 18.4 0.4 23-Aug-23 18.7 0.4