* * * * * C/2018 N2 (ASASSN) * * * * *

Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2020 1 15.849 S 12.8 AQ 30.5T 102 1.1 4 BOU Burlage, Germany 2020 1 15.848 S 12.7 AQ 30.5T 102 0.9 2 DIJ Burlage 2019 12 30.842 M 12.6 AQ 30.5T 102 1.2 5 BOU Burlage, Germany 2019 12 30.839 S 12.8 AQ 30.5T 102 1.3 4 DIJ Burlage 2019 12 27.94 S 11.5 TK 20.3T 100 2 3/ GON Collada del Fresno - Aramo, Asturias 2019 12 25.776 S 12.5 AQ 25.4J 88 1.0 3/ BOU Sint Annen 2019 12 3.06 S 11.1 TK 20.3T 100 1.5 3 GON Aralla, León 2019 11 30.834 S 12.2 AQ 25.4J 88 1.3 4 BOU Sint Annen 2019 11 19.855 S 12.3 AQ 30.5T 73 1.2 3/ DIJ Burlage 2019 11 19.853 M 12.2 AQ 30.5T 73 1.5 5 BOU Burlage, Germany 2019 11 19.41 M 12.4 AQ 40.0L 108 1 5/ WYA Walcha, NSW (Sky slightly hazy from bushfire smoke. Coma diffuse, faint stellar pseudo-nucleus in good seeing. Low altitude 19.8°.) 2019 11 18.93 S 11.2 TK 20.3T 133 2 3/ GON Matadeon de los Oteros, León 2019 11 2.40 S 11.8 TJ 40.0L 75 1.8 6 YOS Kita-karuizawa, Gunma 2019 11 1.56 M 11.5 TJ 40.0L 75 2.2 7 3.5m 165 YOS Kita-karuizawa, Gunma (Strongly condensed and bright. Near Andromeda Galaxy. It looked very nice with a tail.) 2019 10 31.93 S 11.5 TT 25.0L 110 1.5 3 FIL Jerzmanowice 2019 10 31.879 M 11.9 AQ 30.5T 73 1.4 5 BOU Burlage, Germany 2019 10 31.876 S 11.8 AQ 30.5T 73 1.4 4 DIJ Burlage 2019 10 29.940 S 11.6 AQ 30.5T 102 1.5 5 DIJ Burlage 2019 10 29.938 M 12.0 AQ 30.5T 102 1.2 5/ BOU Burlage, Germany 2019 10 27.820 S 11.5 AQ 15.5L 50 2.0 3/ DIJ Burlage 2019 10 26.87 S 11.0 TT 25.0L 60 2 2/ FIL Jerzmanowice 2019 10 25.95 S 11.3 TK 20.3T 100 1.3 5 GON Alto del Castro - Aralla, León 2019 10 19.53 M 12.1 AQ 40.0L 108 1.1 6 WYA Walcha, NSW (Diffuse opaque outer coma, stellar pseudo-nucleus.) 2019 10 18.43 M 12.2 AQ 40.0L 59 1.2 6 WYA Walcha, NSW (Faint stellar pseudo-nucleus visible in good seeing. Diffuse and opaque outer coma. Low altitude 11.5°.) 2019 10 6.929 M 12.1 AQ 30.5T 73 1.5 5 BOU Burlage, Germany 2019 10 6.928 S 11.8 AQ 30.5T 73 1.4 5 DIJ Burlage 2019 10 3.70 M 12.6 AQ 40.0L 108 1.3 6 2.3m 180 WYA Walcha, NSW (Faint tail visible. Stellar pseudo-nucleus visible, semi-transparent outer coma. Low altitude 19.8°.) 2019 10 2.70 M 12.5 AQ 40.0L 108 1.3 6 2m 165 WYA Walcha, NSW (Short faint tail. Faint stellar pseudo-nucleus. Opaque inner coma fading to edges. Close to bright star.) 2019 10 2.08 S 11.6 TK 40.7L 72 2.0 4 0.1 190 BIV 2019 9 29.02 S 10.8 TK 20.3T 77 3 4 GON Alto del Castro - Aralla, León 2019 9 25.49 S 11.6 TA 40.0L 75 1.7 5 YOS Kita-karuizawa, Gunma (Bright and well visible.) 2019 9 24.56 M 12.5 AQ 40.0L 108 1 6 4.8m 192 WYA Walcha, NSW (Faint tail visible. Stellar pseudo-nucleus, opaque centre.) 2019 9 23.860 M 12.3 AQ 25.4J 72 1.2 5 BOU Lauwersoog 2019 9 23.57 M 12.6 AQ 40.0L 59 1.6 6 3.7m 193 WYA Walcha, NSW (Faint tail visible. Faint stellar pseudo-nucleus.) 2019 9 21.826 M 12.2 AQ 25.4J 88 1.2 5 BOU Lauwersoog 2019 9 9.70 S 11.9 TJ 40.0L 75 1.5 7 YOS Kita-karuizawa, Gunma (Very strongly condensed and sharp. Very close to 260P.) 2019 9 7.27 S 12.1 AQ 22.0L 160 1 5 GOI Araçatuba 2019 9 5.73 M 12.6 AQ 40.0L 108 1.2 6 1.5m 185 WYA Walcha, NSW (Faint tail visible.) 2019 9 4.02 S 11.7 TK 20.3T 100 1.5 5 GON Alto del Castro - Aralla, León 2019 9 3.72 M 12.3 AQ 40.0L 108 1 6 3.9m 188 WYA Walcha, NSW (Faint tail visible. Coma diffuse, opaque central condensation with faint stellar pseudo-nucleus visible. Coma dims in Swan Band filter although centre stays visible but not enhanced.) 2019 9 2.07 S 11.7 TK 40.7L 72 2.0 5 0.1 205 BIV 2019 8 30.15 S 11.2:TK 40.7L 72 3.0 5 BIV 2019 8 28.75 M 12.3 AQ 40.0L 108 1 5/ WYA Walcha, NSW (Interference by background star in coma. Coma small with opaque centre. Dims in Swan Band filter, visible at 59x.) 2019 8 25.941 S 12.5 AQ 30.5T 139 1.0 3/ BOU Burlage, Germany 2019 8 25.938 S 12.3 AQ 30.5T 139 0.9 4 DIJ Burlage 2019 8 16.74 S 12.3 TJ 40.0L 144 0.7 4/ YOS Kita-karuizawa, Gunma (Small but strongly condensed. Moonlight.) 2019 8 8.74 M 13.2 AQ 40.0L 108 1 6 2.5m 200 WYA Walcha, NSW (Opaque centre, faint outer coma, stellar pseudo-nucleus. Faint tail visible.) 2019 8 5.12 S 11.7 TK 20.3T 133 1.5 5 GON Alto del Castro - Aralla, León 2019 8 3.73 M 13.5 AQ 40.0L 108 0.7 5/ 0.9m 215 WYA Walcha, NSW (Faint tail visible. Opaque centre, faint outer coma. Sometimes appears faintly stellar. No enhancement in Swan Band filter.) 2019 8 2.10 S 11.7 TK 20.3T 133 1.5 4 GON Alto del Castro - Aralla, León 2019 7 30.14 S 11.9 AQ 20.3T 133 1.2 5 GON Alto de la Camperona, León 2019 1 1.83 S 12.9 AQ 20.3T 133 0.8 5 GON Alto del Castro - Aralla, León (Altitude 12°.) 2018 12 28.46 M 13.9 AQ 25.0L 83 1.5 6 WYA Walcha, NSW (Faintly stellar in good seeing. Diffuse coma.) 2018 12 27.45 M 13.7 AQ 25.0L 83 1.1 5/ WYA Walcha, NSW (Coma diffuse, faintly stellar in good seeing.) 2018 11 29.50 M 14.3 AQ 25.0L 83 1 6 WYA Walcha, NSW (Very diffuse outer coma, small pseudo-nucleus visible. Difficult due to proximity to bright star in field.) 2018 11 26.45 S 14.0 AQ 25.0L 83 1 3/ WYA Walcha, NSW (Difficult. Diffuse outer coma, small central condensation.) 2018 11 11.68 S 14.0 AQ 25.0L 83 1 3 WYA Walcha, NSW (Difficult. Small coma.) 2018 11 10.66 S 14.0 AQ 25.0L 83 1.5 3/ WYA Walcha, NSW (Difficult due to bright star in field, coma small.) 2018 11 3.42 S 14.3 AQ 25.0L 83 0.5 3 WYA Walcha, NSW (Difficult. Diffuse outer coma, opaque inner coma, weakly condensed. Limiting magnitude = 15.0.) 2018 11 1.56 M 13.8 AQ 40.6L 266 0.8 3 CAM Katherine, NT 2018 10 30.45 S 14.0 AQ 25.0L 83 0.8 3 WYA Walcha, NSW (Coma very small, slightly brighter centre. Motion checked over 1 hour period. Close to mag 14.9 star.) 2018 10 11.62 M 13.7 AQ 40.6L 165 0.9 3 CAM Katherine, NT 2018 10 9.58 M 13.8 AQ 40.6L 266 0.8 3 CAM Katherine, NT 2018 10 7.59 M 13.7 AQ 40.6L 165 1.0 4 CAM Katherine, NT 2018 10 6.58 M 13.8 AQ 40.6L 165 1.0 3 CAM Katherine, NT 2018 10 4.59 M 13.9 AQ 40.6L 165 0.8 4 CAM Katherine, NT 2018 10 3.60 M 13.8 AQ 40.6L 266 0.8 4 CAM Katherine, NT 2018 9 18.80 M 13.8 AQ 40.6L 266 1.0 3/ CAM Katherine, NT 2018 9 14.70 M 14.0 AQ 40.6L 165 0.9 4 CAM Katherine, NT 2018 9 11.70 M 14.0 AQ 40.6L 165 0.8 3 CAM Katherine, NT 2018 9 10.76 M 14.2 AQ 40.6L 165 0.7 3 CAM Katherine, NT 2018 9 6.80 M 14.5 AQ 40.6L 266 0.5 3 CAM Katherine, NT