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* * * * * 58P/Jackson-Neujmin * * * * *
Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2020 7 27.82 S 12.5 AQ 40.6L 165 1.5 2 CAM Katherine, NT 2020 7 26.82 S 12.4 AQ 40.6L 76 1.5 2 CAM Katherine, NT 2020 7 25.82 S 12.5 AQ 40.6L 165 1 2 CAM Katherine, NT 2020 7 25.14 S 10.3 TK 20.3T 100 4 2/ GON Alto del Castro - Aralla, León (Wide and diffuse outer coma. Altitude 13°. Astronomical twilight.) 2020 7 23.82 S 12.6 AQ 40.6L 76 1.5 2 CAM Katherine, NT 2020 7 20.82 S 12.4 AQ 40.6L 76 1.5 2 CAM Katherine, NT 2020 7 19.83 S 12.4 AQ 40.6L 76 1.5 2 CAM Katherine, NT 2020 7 19.77 S 11.4 AQ 25.0L 74 2.4 4 WYA Walcha, NSW (Diffuse, brightening gradually to centre. Does not enhance in Swan Band filter. Altitude 17.6°.) 2020 7 18.83 S 12.2 AQ 40.6L 76 2 2 CAM Katherine, NT 2020 7 17.83 S 12.2 AQ 40.6L 76 1.5 2/ CAM Katherine, NT 2020 7 16.83 M 12.2 AQ 40.6L 76 2 3 CAM Katherine, NT 2020 7 15.84 M 12.0 AQ 40.6L 76 2 3 CAM Katherine, NT 2020 7 14.83 M 11.9 AQ 40.6L 76 2 3 CAM Katherine, NT 2020 7 13.84 M 11.7 AQ 40.6L 76 2 3/ CAM Katherine, NT 2020 7 12.84 M 11.7 AQ 40.6L 76 2 3 CAM Katherine, NT 2020 7 2.78 M 11.9 AQ 25.0L 74 2.2 2/ WYA Walcha, NSW (Very diffuse and weakly condensed. Slight interference from zodiacal light. Altitude 16.5°.) 2020 6 22.83 S 11.2 AQ 40.6L 76 3 2/ CAM Katherine, NT 2020 6 21.83 M 11.1 AQ 40.6L 76 2 3 CAM Katherine, NT 2020 6 21.77 S 10.9 AQ 25.0L 74 2.6 3/ WYA Walcha, NSW (Low altitude 12.7°. Diffuse with weakly condensed and opaque centre.) 2020 6 20.83 M 11.2 AQ 40.6L 76 2 3 CAM Katherine, NT 2020 6 18.83 M 11.3 AQ 40.6L 76 3 2/ CAM Katherine, NT 2020 6 13.83 M 11.1 AQ 40.6L 76 2 3 CAM Katherine, NT 2020 6 1.82 M 10.5 AQ 40.6L 76 3 3 CAM Katherine, NT 2020 5 31.36 S 10.2 TK 22.0L 160 2.5 2/ GOI Araçatuba (Comet altitude 24°.) 2020 5 30.82 M 10.5 AQ 40.6L 76 2.5 3 CAM Katherine, NT 2020 5 29.82 M 10.7 AQ 40.6L 76 2 3 CAM Katherine, NT 2020 5 28.82 M 10.7 AQ 40.6L 76 3 3 CAM Katherine, NT 2020 5 26.82 M 10.5 AQ 40.6L 76 3 3 CAM Katherine, NT 2020 5 24.82 M 10.7 AQ 40.6L 76 2 3 CAM Katherine, NT 2020 5 14.82 M 10.6 AQ 40.6L 76 2.5 3 CAM Katherine, NT 2020 5 13.81 M 10.8 AQ 40.6L 76 2.0 2/ CAM Katherine, NT 2020 5 10.81 M 10.8 AQ 40.6L 165 2 2 CAM Katherine, NT 2020 5 3.35 S 10.1 TK 22.0L 160 3 3 GOI Araçatuba (Comet altitude 20°.) 2020 5 2.82 M 10.5 AQ 40.6L 76 2.5 3 CAM Katherine, NT 2020 5 1.83 M 10.4 TK 40.6L 76 3 3 CAM Katherine, NT 2020 4 29.82 M 10.7 AQ 40.6L 76 3 3 CAM Katherine, NT 2020 4 28.79 M 10.4 TK 25.0L 74 3.4 4 WYA Walcha, NSW (Altitude was 19.5° in twilight [8 mins after the beginning of Astro twilight] and Zodiacal light. Very diffuse. Centre enhances in Swan Band filter.) 2020 4 27.83 M 10.8 AQ 40.6L 76 3 3 CAM Katherine, NT 2020 4 26.83 M 10.6 AQ 40.6L 76 3 3 CAM Katherine, NT 2020 4 25.78 S 10.6 AQ 25.0L 74 2.6 3/ WYA Walcha, NSW (Coma shows an opaque diffuse centre fading to semi-transparent edge. Enhances in Swan Band filter. Low altitude 17.0°.) 2020 4 24.77 S 10.7 AQ 25.0L 74 2.5 3/ WYA Walcha, NSW (Coma diffuse, slight brightening to centre. Enhances only slightly using Swan Band filter. Low altitude 11.7° in Zodiacal light.) 2020 4 22.83 M 10.7 AQ 40.6L 165 3 3 CAM Katherine, NT 2020 4 20.83 S 10.9 AQ 40.6L 76 3 3 CAM Katherine, NT 2020 4 19.83 S 10.8 AQ 40.6L 165 3 2 CAM Katherine, NT 2020 4 18.83 M 10.9 AQ 40.6L 76 2 2/ CAM Katherine, NT 2020 4 16.83 M 10.8 AQ 40.6L 165 2 3 CAM Katherine, NT 2020 4 15.83 M 11.0 AQ 40.6L 165 2 3 CAM Katherine, NT 2020 4 14.84 M 10.8 AQ 40.6L 76 2 3 CAM Katherine, NT 2020 4 13.82 M 10.6:TK 40.6L 76 2 3 CAM Katherine, NT