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* * * * * C/2019 L3 (ATLAS) * * * * *
Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2023 7 14.41 M 13.2 AQ 40.0L 108 1.7 3/ WYA Walcha, NSW (Altitude 17.8°. Very diffuse.) 2023 6 19.37 M 12.9 AQ 40.0L 108 1.3 5 WYA Walcha, NSW (No enhancement in Swan Band filter. Opaque centre.) 2023 6 10.38 M 12.7 AQ 40.0L 108 1.1 4/ WYA Walcha, NSW (Diffuse. Opaque centre.) 2023 6 9.39 M 12.8 AQ 40.0L 108 2.0 4 WYA Walcha, NSW (Diffuse. Opaque centre.) 2023 5 23.42 M 12.7 AQ 40.0L 182 1.0 4/ WYA Walcha, NSW (Close to star.) 2023 4 19.47 M 12.3 AQ 40.0L 59 1.3 4 WYA Walcha, NSW (Opaque inner coma, diffuse.) 2023 4 14.90 S 11.4 TK 20.3T 100 1.5 3/ GON Alto del Trichero, León 2023 3 30.64 M 12.2 AQ 40.0L 59 1.6 4 WYA Walcha, NSW (Opaque inner coma, transparent outer coma.) 2023 3 18.45 M 12.0 AQ 40.0L 59 2.0 5/ WYA Walcha, NSW (Opaque centre, transparent outer coma, faint stellar pseudo-nucleus visible in good seeing.) 2023 3 16.46 M 12.0 AQ 40.0L 59 2.3 4/ WYA Walcha, NSW (Diffuse well condensed centre, opaque inner coma.) 2023 3 15.46 M 11.9 AQ 40.0L 59 2.6 5/ WYA Walcha, NSW (Diffuse transparent outer coma, opaque inner coma, pseudo-nucleus visible in good seeing.) 2023 2 16.98 S 11.5 TK 20.3T 133 1 3 GON Cueto Rosales, León 2023 2 16.48 M 11.9 AQ 40.0L 59 2.4 5/ WYA Walcha, NSW (Opaque centre, diffuse outer coma. Dims in Swan Band filter. Close to stars.) 2023 2 2.67 M 11.7 AQ 25.0L 74 1.6 4 WYA Walcha, NSW (Moonlight. Diffuse, opaque centre. No enhancement in Swan Band filter.) 2022 12 26.54 M 11.5 AQ 40.0L 59 2.2 6 2.4m 330 WYA Walcha, NSW (Coma dims in Swan Band filter. Hint of faint broad tail.) 2022 12 20.50 M 11.6 AQ 40.0L 59 2.4 6 WYA Walcha, NSW (Opaque centre, stellar pseudo-nucleus visible. Diffuse outer coma.) 2022 12 2.21 S 10.9 TK 20.3T 77 4 3 GON Alto del Castro, León 2022 11 25.66 M 11.2 AQ 40.0L 59 2.4 6 WYA Walcha, NSW (Enhances in Swan Band filter, semi-opaque outer coma. Close to faint stars. Stellar pseudo-nucleus visible.) 2022 10 29.71 M 11.3 AQ 40.0L 59 2.0 6 WYA Walcha, NSW (Stellar pseudo-nucleus visible, transparent outer coma, opaque inner coma. Close to star.) 2022 10 28.70 M 11.1 AQ 40.0L 59 2.5 6 WYA Walcha, NSW (Coma dims in Swan Band filter. Close to stars. Windy conditions. Extended outer coma, opaque inner coma. Faint stellar pseudo-nucleus visible.) 2022 5 25.90 S 9.8 TK 20.3T 100 2 5 GON Cueto Rosales, León (Altitude 9°. Astronomical twilight.) 2022 5 4.90 S 9.8 TK 20.3T 77 3 5 GON Camposagrado - Cuadros, León 2022 5 3.42 M 10.6 AQ 40.0L 59 2.0 5/ WYA Walcha, NSW (Close to stars. Faint stellar pseudo-nucleus, opaque inner coma, transparent outer coma. Dims in Swan Band filter.) 2022 5 2.37 M 10.3 AQ 40.0L 59 1.9 5/ WYA Walcha, NSW (Diffuse outer coma, opaque inner coma, faint stellar pseudo-nucleus sometimes visible.) 2022 4 28.90 S 9.8 TK 20.3T 77 2.5 5 GON Cueto Rosales, León 2022 4 27.88 S 10.3:TK 20.0L 80 & 2 3 SCH Eerbeek (Difficult obseration. Altitude 20°.) 2022 4 24.90 S 10.3 TK 20.0L 80 2 3 SCH Eerbeek 2022 4 23.896 S 10.6 AQ 31.0J 89 1.0 3/ DIJ Burlage 2022 4 23.894 M 10.8 AQ 31.0J 89 1.4 5 BOU Burlage, Germany (Stars of magn. 11.9 and 13.3 near edge of coma.) 2022 4 23.88 S 10.0 TK 20.0L 80 & 2 4 SCH Eerbeek 2022 4 21.94 S 10.4 TK 22.0L 60 1.5 4 GOI Araçatuba 2022 4 20.87 S 10.4 TK 20.0L 80 2 4 SCH Eerbeek 2022 4 20.36 M 10.5 AQ 40.0L 108 1.3 6 4.0m 132 WYA Walcha, NSW (Faint tail visible.) 2022 4 19.87 S 10.4 TK 20.0L 80 2 4 SCH Eerbeek 2022 4 19.863 M 10.8 AQ 31.0J 72 1.8 6 BOU Burlage, Germany 2022 4 19.861 S 10.9 AQ 31.0J 72 0.8 3/ DIJ Burlage 2022 4 5.41 M 10.2 AQ 40.0L 59 2.3 6 WYA Walcha, NSW (Coma enhances slightly in Swan Band filter. Faint stellar pseudo-nucleus visible in good seeing.) 2022 4 4.44 M 10.2 AQ 40.0L 59 3.5 6 8.7m 93 WYA Walcha, NSW (Faint tail visible.) 2022 4 3.005 S 10.5 AQ 15.5L 42 2 3 DIJ Burlage 2022 4 1.85 S 9.7 TK 20.3T 77 2.5 6 GON Matadeon de los Oteros, León 2022 3 31.93 S 10.4 AQ 40.7L 72 3 6 BIV 2022 3 29.88 S 10.0 TK 20.0L 42 & 4 3 SCH Eerbeek 2022 3 27.844 S 10.8 AC 32.0L 160 0.7 5 LOO Genk 2022 3 27.83 S 10.2 TK 20.0L 42 2 5 SCH Eerbeek (Comet close to star TYC 1334-2245-1.) 2022 3 27.825 S 10.2 AQ 15.5L 42 3.0 4 DIJ Burlage 2022 3 24.92 S 9.9 TK 20.0L 42 2 5 SCH Eerbeek 2022 3 24.892 S 10.3 AQ 15.5L 42 2.6 4 DIJ Burlage 2022 3 24.838 M 10.3 AQ 25.4J 72 1.8 5 BOU Westerwijtwerd 2022 3 23.86 S 9.7 TK 20.0L 42 2 5/ SCH Eerbeek 2022 3 23.86 S 9.5 TK 20.3T 77 2.5 6 GON Pico Cañón, Asturias 2022 3 22.94 S 10.4 AQ 40.7L 72 4 6 BIV 2022 3 22.849 S 11.1 AC 32.0L 160 0.6 6 LOO Genk 2022 3 22.84 S 9.7 TK 20.0L 42 2 SCH Eerbeek 2022 3 22.40 M 9.9 AQ 40.0L 59 2.7 5/ 4.4m 128 WYA Walcha, NSW (Centre enhances in Swan Band filter, faint tail visible.) 2022 3 21.84 S 9.7 TK 20.0L 42 2 5 SCH Eerbeek 2022 3 21.830 S 10.4 AQ 15.5L 29 3.5 4 DIJ Burlage 2022 3 21.41 M 9.7 AQ 40.0L 59 3.5 6 WYA Walcha, NSW (Moonlight encroaching, coma appears opaque at centre, with thin outer transparent coma and stellar pseudo-nucleus. Faint short coma extension to the ESE approximately.) 2022 3 20.83 S 9.8 TK 20.0L 42 2 5 SCH Eerbeek 2022 3 9.967 S 10.4 AQ 15.5L 42 2 3 DIJ Burlage 2022 3 9.88 S 9.8 TK 20.0L 52 &2.5 4 SCH Eerbeek (Moonlight.) 2022 3 8.91 S 9.7 TK 20.0L 52 3 5 SCH Bussloo (Moonlight.) 2022 3 7.96 S 10.1 TK 40.7L 72 6 5 BIV 2022 3 7.87 S 9.7 TK 20.0L 42 3 6 SCH Eerbeek (Moonlight.) 2022 3 7.00 S 9.6 TK 22.0L 60 3 4/ GOI Araçatuba 2022 3 6.88 S 9.7 TK 20.0L 42 3 5/ SCH Eerbeek 2022 3 5.90 S 9.7 TK 20.0L 42 3 5/ SCH Eerbeek 2022 3 5.819 S 10.2 AQ 15.5L 42 2.0 5 DIJ Burlage 2022 3 4.878 S 10.2 AQ 15.5L 29 2.0 4 DIJ Burlage 2022 3 4.87 S 10.0 TK 20.0L 52 2 7 SCH Bussloo 2022 3 4.86 S 9.5 TK 20.3T 77 3 6 GON Alto del Trichero, León 2022 3 4.819 M 10.1 AQ 25.4J 58 1.8 6 BOU Westerwijtwerd 2022 3 3.91 S 9.9 TK 20.0L 52 3 6 SCH Bussloo 2022 3 3.902 S 10.0 AQ 15.5L 42 2.1 5 DIJ Burlage 2022 3 3.896 S 9.7 AC 32.0L 70 1 5 LOO Genk 2022 3 3.829 M 10.0 AQ 25.4J 58 2.2 5 BOU Westerwijtwerd 2022 3 2.905 S 10.1 AQ 15.5L 42 2.0 4/ DIJ Burlage 2022 3 2.83 S 9.8 TK 20.0L 42 2 6 SCH Eerbeek 2022 3 2.828 M 10.0 AQ 25.4J 58 2.0 6 BOU Lauwersoog 2022 2 28.90 S 10.2 TK 20.0L 43 2 6 SCH Bussloo (Comet close to double-star [both components m 8.0].) 2022 2 27.854 S 9.7 AC 32.0L 70 1.5 6 LOO Genk 2022 2 27.83 S 9.8 TK 20.0L 42 2 6 SCH Eerbeek 2022 2 27.823 S 10.2 AQ 15.5L 36 2.1 4 DIJ Burlage 2022 2 27.820 M 9.9 AQ 15.5L 36 2.4 5/ BOU Burlage, Germany 2022 2 26.90 S 10.4 TK 40.7L 72 4 6 BIV 2022 2 26.84 S 10.0 TK 20.0L 42 2 6 SCH Eerbeek 2022 2 26.819 S 9.7 TK 32.0L 70 1.2 6 LOO Genk 2022 2 26.795 S 10.3 AQ 15.5L 42 2 4 DIJ Burlage 2022 2 25.95 S 10.0 TK 20.0L 52 2 5 SCH Bussloo 2022 2 25.903 S 10.1 AQ 15.5L 42 2.5 3/ DIJ Burlage 2022 2 25.89 S 10.1 TK 40.7L 72 4 7 BIV 2022 2 25.786 M 9.7 AQ 25.4J 58 2.5 5 BOU Lauwersoog 2022 2 24.96 S 9.9 TK 20.0L 42 3 5 SCH Eerbeek (Comet in group of stars.) 2022 2 24.856 S 9.9 AQ 15.5L 50 2.6 5 DIJ Burlage 2022 2 22.882 S 10.0 AQ 15.5L 42 3 5 DIJ Burlage 2022 2 22.83 S 9.7 TK 20.0L 42 3 6 SCH Eerbeek 2022 2 22.785 M 9.6 TK 25.4J 58 3 4/ BOU Lauwersoog 2022 2 22.42 S 9.8 TJ 40.0L 36 4.0 6/ YOS Mt. Tsukuba, Ibaraki (Strongly condensed and easy to see.) 2022 2 21.950 S 10.2 AQ 15.5L 42 3.1 4/ DIJ Burlage 2022 2 21.08 S 9.1 TK 22.0L 60 3 4/ GOI Araçatuba 2022 2 19.85 S 9.5 TK 20.3T 77 3 6 GON Alto del Trichero, León 2022 2 9.07 S 9.7 TK 40.7L 72 5 6 BIV 2022 2 8.77 S 9.1 TK 20.0L 42 &2.5 5 SCH Eerbeek 2022 2 7.53 M 9.3 AQ 25.0L 40 2.8 5/ WYA Walcha, NSW (Does not enhance in Swan Band filter. Diffuse outer coma, opaque inner coma and stellar pseudo-nucleus visible sometimes.) 2022 2 5.88 S 9.3 TK 20.3T 77 4 6 GON Puerto de Aralla, León 2022 2 4.94 S 9.5 TK 40.7L 72 4 7 0.13 340 BIV 2022 2 4.91 S 9.1 TK 20.0L 42 3 6 SCH Eerbeek 2022 2 4.892 S 10.1 AQ 15.5L 42 2.5 5/ DIJ Burlage 2022 2 1.89 S 9.1 TK 20.0L 42 3 6 SCH Eerbeek 2022 1 31.93 S 9.1 TK 20.0L 42 3 6 SCH Eerbeek 2022 1 31.47 M 9.6 TK 25.0L 74 2.5 6 WYA Walcha, NSW (Faint stars in coma.) 2022 1 29.85 S 9.3 TK 20.0L 42 2 6 SCH Eerbeek 2022 1 28.48 M 9.4 TK 25.0L 40 2.7 6 WYA Walcha, NSW (Close to star. Opaque centre, coma dims in Swan Band filter.) 2022 1 27.940 S 9.8 TK 15.5L 42 2.5 6/ DIJ Burlage 2022 1 27.89 S 9.3 TK 20.0L 42 3 6 SCH Eerbeek 2022 1 24.861 S 8.6 AC 32.0L 70 2 6 LOO Genk 2022 1 23.04 S 9.2 TK 22.0L 60 3 4/ GOI Araçatuba 2022 1 21.86 S 9.1 TK 20.3T 77 4 6 GON Alto del Castro - Aralla, León 2022 1 20.79 S 9.0 TK 20.0L 42 & 2 6 SCH Eerbeek (Comet close to star TYC 1906-0150-1 [m=10.7].) 2022 1 14.25 S 8.8 TK 20.3T 77 4 6 0.2 320 GON Collada del Fresno - Sierra del Aramo, Asturias 2022 1 9.96 S 9.1 TK 20.0L 42 4 6 SCH Eerbeek (Moon low above horizon.) 2022 1 9.815 S 9.0 AC 32.0L 70 1.5 6 LOO Genk (Moonlight.) 2022 1 8.01 S 9.5 TK 20.0L 42 3 6 SCH Eerbeek 2022 1 7.924 S 9.5 TK 15.5L 42 2.0 5/ DIJ Burlage 2022 1 6.12 S 9.3 TK 10.0B 20 3 4 GOI Araçatuba 2022 1 5.86 S 9.5 TK 40.7L 72 4 7 0.17 310 BIV 2022 1 5.85 S 9.4 TK 20.0L 42 3 6 SCH Eerbeek 2022 1 5.811 M 9.5 TK 25.4J 47 3 5/ BOU Lauwersoog 2022 1 5.163 S 9.4 AC 32.0L 70 1.5 6 LOO Genk 2022 1 4.953 S 9.5 TK 15.5L 42 3.4 5/ DIJ Burlage 2022 1 3.48 M 9.3 TK 25.0L 40 5 6 11m 312 WYA Walcha, NSW (Faint tail visible. Opaque inner coma enhances, outer coma dims in Swan Band filter.) 2022 1 2.17 M 9.4 TK 22.0L 60 2.5 5 GOI Araçatuba 2022 1 1.50 9.6 AA 10.0B 25 SEA Cowra, NSW 2021 12 30.89 S 9.2 AQ 40.7L 72 4 7 BIV 2021 12 30.87 S 9.3 TK 20.3T 77 3 6 0.2 310 GON Collado de Vega Cubiellos - Sierra del Aramo, Asturias 2021 12 29.49 M 9.0 TK 25.0L 40 3.0 6 WYA Walcha, NSW (Altitude 14.7°. Enhances in Swan Band filter. Faint stellar pseudo-nucleus visible, bright opaque inner coma with semi-transparent outer coma.) 2021 12 26.12 S 9.7 TK 22.0L 60 3 5 GOI Araçatuba 2021 12 25.859 S 9.5 TK 15.5L 29 4.0 5 DIJ Burlage 2021 12 25.856 M 9.4 TK 15.5L 29 3.2 4/ BOU Burlage, Germany 2021 12 25.85 S 9.2 TK 20.0L 42 3 6 SCH Eerbeek 2021 12 18.66 S 9.5 TJ 40.0L 75 2.2 6/ YOS Mt. Tsukuba, Ibaraki (Well condensed and easy to see. Moonlight.) 2021 12 14.67 M 9.5 TK 40.0L 59 3.2 6 10m 287 WYA Walcha, NSW (Faint tail visible. Inner coma enhances in Swan Band filter.) 2021 12 13.66 M 9.4 TK 40.0L 59 3.5 6 9.2m 267 WYA Walcha, NSW (Faint tail visible. Inner coma enhances in Swan Band filter.) 2021 12 12.27 S 9.8 TK 10.0B 20 3 4/ GOI Araçatuba 2021 12 11.21 S 9.4 TK 10.0B 25 6 6 GON Mora - Sierra del Castillo de Peñas Negras, Toledo 2021 12 9.22 S 9.6 TK 20.0L 42 3 5 SCH Eerbeek 2021 12 8.856 S 8.9 AC 32.0L 70 1 6 LOO Genk 2021 12 7.21 S 9.7 TK 20.0L 42 & 4 4/ SCH Eerbeek 2021 12 7.19 S 10.1 AQ 40.7L 72 2.5 7 0.10 275 BIV 2021 12 4.29 S 9.9 TK 22.0L 60 2 5 GOI Araçatuba 2021 12 2.96 S 9.6 TK 20.3T 77 5 6 0.2 300 GON Sierra de Santa Maria - Castrocontrigo, León 2021 12 2.918 S 9.9 AQ 15.5L 42 2.5 5 DIJ Burlage 2021 12 2.914 M 10.0 AQ 25.4J 47 2.7 5/ BOU Westerwijtwerd 2021 12 1.90 S 9.7 TK 20.0L 42 & 3 6 SCH Eerbeek 2021 11 15.29 S 9.9 TK 22.0L 60 2 4 GOI Araçatuba 2021 11 13.72 M 10.2 AQ 40.0L 59 4 6 5.8m 290 WYA Walcha, NSW (Faint tail visible. Centre enhances in Swan Band filter.) 2021 11 11.22 S 10.5 TK 40.7L 72 3.0 7 BIV 2021 11 11.13 S 9.6 TK 20.3T 77 4 5 GON Morrena Entrelagos - Macizo Occidental de Picos de Europa, Asturias 2021 11 10.14 S 9.7 TK 20.0L 42 & 3 7 SCH Eerbeek (Comet in between two stars of 11th magnitude.) 2021 11 8.15 S 9.6 TK 20.0L 42 3 7 SCH Eerbeek 2021 11 6.17 S 10.3 AQ 40.7L 72 3.0 7 BIV 2021 11 5.97 S 10.0 TK 20.0L 42 3 6 SCH Eerbeek 2021 11 5.13 S 9.5 TK 20.3T 77 5 4/ GON Matadeon de los Oteros, León 2021 11 5.11 S 10.0 TK 20.0L 42 3 6 SCH Eerbeek 2021 11 3.96 S 10.9 AQ 40.7L 72 1.8 6 BIV 2021 11 2.29 S 10.0 TK 22.0L 60 2 4 GOI Araçatuba 2021 11 1.951 M 10.4 AQ 25.4J 58 2.3 6 BOU Sint Annen 2021 11 1.04 S 10.1 TK 20.0L 42 3 5 SCH Eerbeek 2021 10 31.966 M 10.6 AQ 25.4J 58 2.4 6 BOU Sint Annen 2021 10 31.96 S 11.0 AQ 40.7L 72 2.0 6 BIV 2021 10 28.90 S 11.1 AQ 40.7L 72 1.5 6 BIV 2021 10 28.88 S 10.3:TK 20.0L 80 & 3 3 SCH Eerbeek (Diffuse. Only visible with averted vision.) 2021 10 28.869 M 10.7 AQ 25.4J 72 2 6 BOU Westerwijtwerd (Fairly small, well condensed object. Altitude 17.3°.) 2021 10 27.90 S 9.6 TK 20.3T 77 6 3/ GON Alto del Castro, León 2021 10 14.13 S 11.2 AQ 40.7L 72 1.5 6 BIV 2021 10 9.955 M 10.8 AQ 25.4J 58 2.2 6 BOU Westerwijtwerd 2021 10 9.74 M 11.1 AQ 40.0L 59 4 6 3.7m 280 WYA Walcha, NSW (Low altitude 9.2°. Coma dims in Swan Band filter. Opaque inner coma, stellar pseudo-nucleus visible in good seeing. Faint tail visible.) 2021 10 9.13 S 10.7 AQ 40.7L 72 2.0 6 0.07 300 BIV 2021 10 8.98 S 10.6 TK 20.0L 42 2 6 SCH Eerbeek 2021 10 7.07 S 11.0 AQ 40.7L 72 1.4 6 0.08 300 BIV 2021 10 7.04 S 10.6 TK 20.0L 42 2 8 SCH Eerbeek 2021 10 7.02 S 9.9 TK 20.3T 100 4 4 GON Alto del Castro, León 2021 10 4.13 S 11.1 AQ 40.7L 72 1.7 6 BIV 2021 9 19.78 S 11.0 TJ 40.0L 75 1.6 7 YOS Mt. Tsukuba, Ibaraki (Very strongly condensed. Bright and easy to see.) 2021 9 17.12 S 11.0 AQ 40.7L 72 2.5 5 BIV 2021 9 17.12 S 10.5 TK 20.3T 77 5 4 GON Las Retuertas - Sierra del Aramo, Asturias 2021 9 8.992 S 11.2 AQ 15.5L 50 1.8 4 DIJ Burlage 2021 9 6.09 S 11.5 AQ 40.7L 72 1.5 6 BIV 2021 9 5.999 S 11.5 AQ 15.5L 50 1.5 4 DIJ Burlage 2021 9 5.02 S 10.7 TK 20.3T 100 5 3/ GON Alto del Castro, León 2021 9 2.09 S 12.0 AQ 40.7L 72 1.0 6 BIV 2021 8 11.09 S 10.9 TK 20.3T 100 4 3/ GON Alto del Castro, León 2021 8 6.10 S 11.3 TK 20.3T 133 2.0 3/ GON Alto del Castro, León 2021 7 14.12 S 11.2 TK 20.3T 100 2.5 3/ GON Alto del Trichero, León 2021 7 9.09 S 11.4 TK 20.3T 133 2.5 3/ GON Alto del Castro - Aralla, León 2021 6 10.10 S 11.2 TK 20.3T 100 2.5 3/ GON Alto del Castro - Aralla, León 2021 4 5.88 S 11.3 TK 20.3T 100 2.3 4/ GON Alto del Castro - Aralla, León 2021 3 15.85 S 11.7 TK 20.3T 133 1.5 5 GON Alto del Castro - Aralla, León 2021 2 27.88 V 13.7 TK 68.0L 0.6 QVA Nykirke 2021 2 13.826 M 13.6 AQ 31.0J 143 0.25 7 BOU Burlage, Germany 2021 2 13.823 S 13.6 AQ 31.0J 143 0.1 9 DIJ Burlage 2020 12 14.49 S 14.0 UV 40.0L 257 0.5 6 YOS Mt. Hanadate, Ibaraki (Strongly condensed.)