* * * * * 260P/McNaught * * * * *

Year Mn Day    MM  Mag Ref Scope Pwr coma  DC tail p.a. Obs  Site
2012  9 15.932  S 12.6 AQ  30.5T  95  0.9  4/           DIJ  Burlage 
2012  9 15.931  S 12.7 AQ  30.5T  95  1.2  4            BOU  Burlage, Germany
2012  9 15.77   S 12.4 TA  40.0L  75  2.4  6/           YOS  Kita-karuizawa, Gunma
(Bright, strongly condensed and easy to see.)
2012  9 13.97   S 11.4 TK  20.3T 100  2.0  4            GON  Alto del Castro, León
2012  9  9.919  S 12.6 TA  30.5T 117  1.1  3            BOU  Burlage, Germany
2012  9  9.917  S 12.4 AQ  30.5T 117  0.8  4            DIJ  Burlage
2012  9  6.91   S 11.0 TK  20.3T 100  2.5  3            GON  Llamas de Rueda, León
2012  8 26.74   S 13.0 AC  30.0L 240  0.8  3            WOL  Moera, Lower Hutt
2012  8 23.74   S 13.0 AC  30.0L 240  0.6  4            WOL  Moera, Lower Hutt
2012  8 22.02   S 11.8 TK  20.3T  77  1.3  3/           GON  Alto del Castro, León
(Brighter than expected.}
2012  8 19.74   S 12.8 AC  30.0L 240  1.0  6            WOL  Moera, Lower Hutt
2012  8 19.70   S 13.0 TA  40.0L  75  1.6  6            YOS  Kita-karuizawa, Gunma
(Surprisingly bright, and easy to see. It looks like a 12-mag comet. 7 years passed since my last
observation at the discovery in 2005. I remember it was a tiny faint comet at that time.
So I was surprised the comet looks very bright now.)
2012  7 28.29   S 11.6 AU  22.0L 160  2.5  2            GOI  Araçatuba
2012  7 23.10   S 12.8 TA  20.3T 133  1.3  3            GON  Alto del Castro, León
(Brighter than expected. Nearby field stars checked in DSS. Comparison stars taken from TASS photometry.
Motion observed over a 45-min period. Mountain location, very clear sky.)


2005 10 24.65   S[13.8 TA  40.0L 257 !0.7               YOS  Gunma, Japan
(Not visible. Very close to the half moon. The field was covered with many faint stars, so it was
hard to confirm a diffuse faint comet.)
2005  9  3.965 aS 13.7 HN  31.0J 155  0.6  5            DIJ  Lauwersoog
2005  9  3.956 aS 13.7 HN  31.0J 155  0.5  5/           BOU  Lauwersoog
(Small, condensed object. Motion obvious over a 30m period.)
2005  8  5.72   S 13.9 HS  40.0L 257  0.5  4            YOS  Gunma, Japan
(A faint and small object was visible. Probably the comet was visible visually. I want other
visual observers to confirm it with large telescopes. Michael Jäger reported P/2005 K3 is
brighter than C/2005 K1 by 0.5 mag.)