* * * * * C/2017 T1 (Heinze) * * * * *

Year Mn Day    MM  Mag Ref Scope Pwr coma  DC tail p.a. Obs  Site
2018  2 25.205  S 11.0:AQ  30.5T 102 &1.5  2            BOU  Burlage, Germany
(Twilight, comet at altitude 11.7° with Sun at -14.5°. Faint and very diffuse object close to star of magnitude 10.5.
Obviously comet is desintegrating.)
2018  2 25.205  S 10.7:AQ  30.5T 102       2            DIJ  Burlage
2018  2 21.24   S  9.3 TK  20.3T 100   4   3            GON  Villacintor, León
(Altitude 8°.)
2018  2 17.78   S  9.9:TK  40.7L  72  1.5  2            BIV
2018  2 13.766  M 10.2 TA  25.4J  58  2.0  3/           BOU  Lauwersoog
(Altitude 10.6° with Sun at -15.6°. Appears fainter and less condensed than a week ago.)
2018  2 13.758  S  9.4 TA  15.5L  42  2.5  5            DIJ  Burlage
(Altitude 11° with Sun at -15°.)
2018  2 12.79   S 10.1 TK  40.7L  72  2.0  5            BIV
2018  2  8.763  M  9.5 TA  25.4J  58  2.2  4/           BOU  Sint Annen
(Altitude 16.9°.)
2018  2  7.787  S  9.8 TA  15.5L  42  2.5  4            DIJ  Burlage
2018  2  7.758  M  9.5 TA  25.4J  47  2.5  4/           BOU  Sint Annen
(Altitude 18.9°. Hint of twilight with Sun at -15.7°.)
2018  2  6.768  M  9.6 TA  25.4J  58  2.5  5            BOU  Lauwersoog
(Altitude 18.3°. Easily visible, well condensed object.)
2018  2  4.83   S  9.6 TK  40.7L  72  2.0  3            BIV
2018  1 17.85   S 10.1 TK  20.3T  77   4   2/           GON  Puerto de Aralla, León
2018  1 14.824  S 10.4 TA  30.5T  54   4   1/           DIJ  Burlage
2018  1 14.821  S 10.4 TA  30.5T  54  3.5  1/           BOU  Burlage, Germany
2018  1 12.93   S 10.6 TK  40.7L  72   5   3            BIV
2018  1  8.87   S 10.2 TK  20.3T  77   4   2/  0.2  90  GON  Valdespino Cerón, León
(Rapid motion obvious.)
2018  1  7.81   S  9.5 TK  20.0L  42 &10   0            SCH  Eerbeek
(Big and diffuse comet.)
2018  1  7.792  S 10.0 TK  15.5L  42   4   1/           DIJ  Burlage
2018  1  6.51   S 10.3 TJ  40.0L  36   4   1            YOS  Mt. Hanadate, Ibaraki
(Bright, but very diffuse.)
2017 12 28.13   S 10.5 TK  40.7L  72   5   4            BIV
2017 12 28.09   S 11.3 TK  40.7L  72  2.5  5  0.07 240  BIV
2017 12 23.64   M 11.8 AQ  25.0L  83  1.5  4/           WYA  Walcha, NSW
(Does not enhance in Swan Band filter. Coma elongated to the West approximately.
Central condensation sometimes appears stellar in periods of good seeing.)
2017 12 20.15   S 11.1 AQ  20.3T 100   4   2            GON  Puerto de Aralla, León
2017 12 18.73   S 13.3 TA  40.0L 144  1.0  3/           YOS  Mt. Hanadate, Ibaraki
(Easier to see than expected.)
2017 12 16.08   S 12.0 AQ  20.3T 133  2.5  2/           GON  Villacintor, León
(Motion checked during a 30-min period. Field stars checked in DSS.)
2017 12 14.67   S 13.5 AQ  25.0L  83  1.3  2            WYA  Walcha, NSW
(Coma diffuse, weakly condensed.)
2017 12 13.61   S 13.8 AQ  25.0L  83   1   2            WYA  Walcha, NSW
(Coma very diffuse.)