* * * * * 205P/Giacobini * * * * *

Year Mn Day    MM  Mag Ref Scope Pwr coma  DC tail p.a. Obs  Site
2015  9 21.75   S 13.7 TA  40.0L 257  0.4  4            YOS  Kita-karuizawa, Gunma
(Tiny.)

2008 11 23.43   S 13.5 AU  40.0L 257  0.5  3/           YOS  Kita-karuizawa, Gunma
(It seems that I estimated the central part only with higher magnification.)
2008 11 22.44   S 12.6 AU  40.0L 144  1.0  3            YOS  Kita-karuizawa, Gunma
(I had thought it could fade out very rapidly after the outburst. But actually, it keeps bright still now unexpectedly.)
2008 11 19.82   S 12.2 TK  20.3T 100  2.0  3            GON  Alto del Trichero - Soto y Amío, León
2008 11  5.99   S 12.8 TK  20.3T 100  1.2  3            GON  Aralla, León
2008 11  1.42   S 13.2 AU  40.0L 144  1.1  3            YOS  Kita-karuizawa, Gunma
(Unexpectedly, it is bright still now. But it became diffuse and hard to see.)
2008 10 29.778  S 13.3:AU  31.0J 109  0.6  3            BOU  Lauwersoog
2008 10 26.00   S 12.9 TA  20.3T 133  0.7  5            GON  Alto del Castro - Aralla, León
2008 10 19.87   S 13.2 TA  20.3T 160  0.6  5            GON  Alto del Castro - Aralla, León
2008 10  4.42   S 12.6 AU  40.0L 144  1.2  3/           YOS  Kita-karuizawa, Gunma
(I could finally see Comet Giacobini rediscovered by Itagaki and Kaneda after being lost for 112 years.
More difficult to see than I have expected, maybe due to the poor sky condition. Somewhat condensed at the center,
but expanding outer faint coma. So difficult to determine the DC value.)
2008 10  1.87   S 12.5 TK  20.3T 133  1.5  5            GON  Alto del Castro - Aralla, León
2008  9 29.01   S 11.8 TK  20.3T 133  2.5  3            GON  Alto del Castro - Aralla, León
2008  9 27.838  S 12.6 AU  31.0J  89  1.2  1            DIJ  Lauwersoog
2008  9 27.835  S 12.5 AU  31.0J  89  1.5  2            BOU  Lauwersoog
2008  9 25.851  S 12.7 AU  31.0J  89  1.2  1            DIJ  Lauwersoog
2008  9 25.850  S 12.5 AU  31.0J  89  1.5  2            BOU  Lauwersoog
2008  9 24.92   S 11.9 TK  20.3T 133  2.2  3/           GON  Aralla, León
(Exceptionally clear sky.)
2008  9 19.83   S 12.2 TK  20.3T 100  1.5  3/           GON  Cospedal, León
(Estimate made before moonrise. Mountain location, very clear sky.)
2008  9 11.07   S 12.7 TA  20.3T 100  0.8  5            GON  San Nicolas del Real Camino, Palencia
(Estimate made after moonset. Nearby field stars checked in DSS. Rural dark sky location.)