* * * * * 230P/LINEAR * * * * *

Year Mn Day    MM  Mag Ref Scope Pwr coma  DC tail p.a. Obs  Site
2016  1  9.43   S 13.9 TA  40.0L 257  0.6  4            YOS  Mt. Hanadate, Ibaraki
(I could see it in a very short time because clouds covered the sky.)
2015 12 31.919  S 13.6 AQ  30.5T 179  0.6  3            DIJ  Burlage
2015 12 31.915  M 13.7 AQ  30.5T 179  0.4  6            BOU  Burlage, Germany
2015 12 30.46   M 13.5 AQ  25.0L  83  0.9  5/           WYA  Walcha, NSW
(Coma very diffuse, semi-opaque, pale blue in colour, with small faint stellar central condensation [m2 approx. 14.5].)
2015 12 29.46   M 13.6 TA  25.0L 166  0.4  6            WYA  Walcha, NSW
(Coma diffuse with faint stellar centre, m2 approximately 14.2. Does not enhance in Swan Band filter. Coma visible at 83x.)
2015 12 21.16   S 13.0 AQ  20.3T 160  0.6  6            GON  Alto del Castro, León
(Nearby field stars checked in DSS.)
2015 11 30.49   M 14.0 U4  25.0L 166  0.3  6/           WYA  Walcha, NSW
(Very difficult due to average seeing conditions, visible in periods of good seeing. The coma is very small and compact
with a thin fuzzy outer edge. Limiting magn. 14.8.)
2015 11 20.70   I[15.4 UV  40.0L 257                    YOS  Kita-karuizawa, Gunma
(Because it looks stellar by CCD images, I thought it could be visible visually. But it was not visible.
It was located near Rigel and easy to guide the telescope to the field.)
2015 10 12.104  S[14.1 AQ  30.5T 179 !0.3               DIJ  Burlage
2015 10 12.101  S[14.0:AQ  30.5T 179 !0.6               BOU  Burlage, Germany
(Difficult observation, with suspect less than 4' from 55 Eri [nice double star with 2 stars of equal brightness, magn. 6.7, 9" apart].)