* * * * * C/2015 O1 (PANSTARRS) * * * * *

Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2018 11 3.76 S[13.0 TA 40.0L 257 !0.6 YOS Kita-karuizawa, Gunma (Not visible.) 2018 7 13.49 S 12.8 TA 40.0L 144 1.0 4 YOS Kita-karuizawa, Gunma (Well visible.) 2018 5 15.99 S 12.0 AQ 20.3T 100 1.2 5 GON Pandorado, León 2018 5 8.96 S 12.2 AQ 20.3T 100 1.2 5 GON Pandorado, León 2018 5 4.94 S 12.2 AQ 20.3T 100 1.0 4 GON Alto del Castro, León 2018 5 4.50 S 13.1 TA 40.0L 144 1.2 5 YOS Kita-karuizawa, Gunma (Well condensed and easy to see.) 2018 5 3.53 S 13.5 TA 40.0L 144 0.8 4/ YOS Kita-karuizawa, Gunma 2018 4 22.054 S 13.2 AQ 30.5T 102 0.5 3/ DIJ Burlage 2018 4 22.049 M 13.4 AQ 30.5T 102 0.8 4 BOU Burlage, Germany 2018 4 18.91 S 12.3 AQ 20.3T 133 1.0 4 GON Puerto de Aralla, León 2018 4 18.884 M 13.4 AQ 30.5T 139 0.7 4/ BOU Burlage, Germany 2018 4 18.881 S 13.1 AQ 30.5T 139 0.5 2/ DIJ Burlage 2018 4 7.946 M 13.4 AQ 30.5T 139 0.8 4/ BOU Burlage, Germany 2018 4 7.944 S 13.5 AQ 30.5T 139 0.6 3/ DIJ Burlage 2018 4 5.89 S 12.2 AQ 20.3T 133 1.5 3/ GON Alto del Trichero, León 2018 4 5.878 S 13.5 AQ 30.5T 179 0.6 4 BOU Burlage, Germany 2018 4 5.875 S 13.3 AQ 30.5T 179 0.4 2 DIJ Burlage 2018 3 24.74 S 13.5 AQ 25.0L 83 1.2 3 WYA Walcha, NSW (Low altitude 10.6°. Coma diffuse.) 2018 3 18.909 S 13.4 AQ 30.5T 139 0.7 3 BOU Burlage, Germany 2018 3 18.906 S 13.6 AQ 30.5T 139 0.6 2/ DIJ Burlage 2018 3 14.901 S 13.3 AQ 30.5T 139 0.7 3/ BOU Burlage, Germany 2018 3 14.898 S 13.4 AQ 30.5T 139 0.7 2 DIJ Burlage 2018 3 12.80 S 12.8 TA 40.0L 144 1.4 3 YOS Mt. Hanadate, Ibaraki (Bright, but the condensation is weaker than expected.) 2018 2 25.139 S 13.6 AQ 30.5T 139 0.7 3/ BOU Burlage, Germany 2018 2 25.136 S 13.6 AQ 30.5T 139 0.5 4 DIJ Burlage 2018 2 12.995 S 13.7 AQ 30.5T 139 0.8 3/ DIJ Burlage 2018 2 12.990 S 13.6 AQ 30.5T 139 0.8 4 BOU Burlage, Germany 2018 1 18.21 S 12.8 AQ 20.3T 133 1.2 5 GON Puerto de Aralla, León (Central condensation, m2=14.2:. Field stars checked in DSS.) 2017 8 14.47 S 14.1 AQ 25.0L 166 0.4 3 WYA Walcha, NSW (Coma diffuse, slight brightening to centre.) 2017 8 11.45 S 13.7 AQ 40.6L 165 0.5 3 CAM Katherine, NT 2017 8 10.47 S 13.9 AQ 40.6L 165 0.6 3 CAM Katherine, NT 2017 8 10.38 S 14.3 AQ 25.0L 83 0.8 3 WYA Walcha, NSW (Coma very small and diffuse, visible in periods of good seeing.) 2017 7 27.53 S 13.7 AQ 40.6L 165 0.8 4 CAM Katherine, NT 2017 7 24.50 S 14.2 AQ 40.6L 260 0.5 5 CAM Katherine, NT 2017 7 20.53 S 13.8 AQ 40.6L 165 0.4 5 CAM Katherine, NT 2017 7 14.96 I 14.5 AQ 20.3T 133 0.2 7 GON Alto del Castro - Aralla, León 2017 6 30.62 M 14.7 AQ 25.0L 166 0.2 5/ WYA Walcha, NSW (Coma very small, just visible near magn. 13.3 star.)