* * * * * C/2013 US10 (Catalina) * * * * *

Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2016 9 1.74 S[13.5 UV 40.0L 257 !0.6 YOS Kita-karuizawa, Gunma (I could not see the comet due to so many faint background stars.) 2016 5 4.47 S 11.9 TA 40.0L 144 1.4 2 YOS Kita-karuizawa, Gunma 2016 5 2.45 S 11.6 TJ 40.0L 144 1.6 2 YOS Kita-karuizawa, Gunma (Unexpectedly, it looks bright still now.) 2016 5 1.885 S 11.9 AQ 30.5T 102 1.4 0/ DIJ Burlage 2016 5 1.883 S 12.0 AQ 30.5T 102 1.6 1/ BOU Burlage, Germany 2016 4 10.867 S 11.6 AQ 30.5T 73 2.0 2 BOU Burlage, Germany 2016 4 10.865 S 12.1 AQ 30.5T 73 1.5 0/ DIJ Burlage 2016 4 8.861 S 11.5:AQ 25.4J 72 2.5 2 BOU Sint Annen (Faint and diffuse object. Some interference from star of magn. 12.0 near edge of coma.) 2016 4 6.87 S 10.1 TK 20.3T 77 4 2/ 0.2 70 GON Alto de la Camperona, León 2016 3 27.831 S 11.3 AQ 30.5T 73 2 1 DIJ Burlage 2016 3 27.830 S 11.5 AQ 30.5T 73 2.0 3 BOU Burlage, Germany 2016 3 22.47 S 9.7 TJ 40.0L 144 2.2 1 YOS Mt. Hanadate, Ibaraki (Diffuse and hard to see due to strong moonlight. It was located nearby open cluster NGC 1528.) 2016 3 17.158 S 10.2 TK 15.5L 42 3 1 DIJ Burlage 2016 3 17.135 S 10.4 AQ 25.4J 47 3.5 1 BOU Sint Annen 2016 3 15.990 S 10.3 AQ 25.4J 58 3 1/ BOU Sint Annen (Moonlight. Magn. 11 star near edge op coma.) 2016 3 12.984 S 9.8 TK 15.5L 29 3.6 1 DIJ Burlage 2016 3 12.97 S 9.8 TK 20.0L 42 & 3 0 SCH Eerbeek 2016 3 12.880 S 10.1 TA 25.4J 47 3.5 2 BOU Sint Annen 2016 3 11.97 S 9.7 TK 20.0L 42 & 3 0 SCH Eerbeek 2016 3 11.83 S 9.5 TK 20.3T 77 5 3/ 0.4 60 GON Pandorado, León 2016 3 7.85 S 9.8 TK 20.0L 42 4 2 SCH Eerbeek 2016 3 7.805 S 9.2 TK 15.5L 29 4.1 1 DIJ Burlage 2016 3 5.93 S 10.0 TK 20.0L 42 4 1 SCH Eerbeek 2016 3 5.922 S 9.4 TK 15.5L 29 4.1 1 DIJ Burlage 2016 3 5.92 S 9.3 TK 20.3T 77 4 4/ 0.3 60 GON El Chano - Riofrío, León 2016 3 3.924 S 9.2 TK 15.6L 29 4.5 2/ BOU Sint Annen 2016 3 3.894 S 9.3 TK 15.5L 42 4.2 0/ DIJ Burlage 2016 3 3.83 S 9.7 TK 20.0L 42 & 3 1/ SCH Eerbeek (Star of magn. 10.9 in coma.) 2016 3 1.00 S 9.0 TK 20.3T 77 3 4/ GON Pandorado, León 2016 2 29.93 S 9.4 TK 20.0L 42 & 6 2 SCH Eerbeek 2016 2 29.926 S 8.8 TK 15.5L 29 3 1/ DIJ Burlage 2016 2 29.897 S 9.0 TK 15.6L 24 5.5 3 BOU Sint Annen 2016 2 28.799 S 8.9 TK 8.0B 15 5 1 DIJ Burlage 2016 2 27.931 S 8.7 TK 8.0B 15 4.2 2 DIJ Burlage 2016 2 27.81 S 9.5 TK 20.0L 42 & 5 2 SCH Eerbeek 2016 2 27.783 S 9.0 TK 15.6L 24 5.5 3 BOU Sint Annen 2016 2 25.800 S 9.0 TK 15.6L 24 5 3/ BOU Sint Annen 2016 2 24.791 S 8.9 TK 15.6L 24 5.5 3/ BOU Sint Annen 2016 2 16.869 S 8.2 TK 8.0B 15 5 3 DIJ Burlage (Moonlight.) 2016 2 12.93 S 7.9 TK 8.0B 15 12 5 SCH Eerbeek 2016 2 12.927 S 8.0 TK 8.0B 15 6.3 3 DIJ Burlage 2016 2 12.813 S 8.4 TK 32.0L 56 2 4 LOO Genk (Moonlight.) 2016 2 11.965 S 7.9 TK 8.0B 15 6.5 3/ DIJ Burlage 2016 2 11.938 M 7.7 TK 15.6L 24 7 4/ BOU Sint Annen 2016 2 11.012 M 7.6 TK 15.6L 24 7 4 BOU Sint Annen 2016 2 10.951 S 7.6 TK 8.0B 15 7.5 4/ DIJ Burlage 2016 2 9.991 S 7.4 TK 8.0B 15 8 4/ DIJ Burlage (Star of mag. 8.8 near edge of coma.) 2016 2 9.971 S 7.5:TK 15.6L 24 7 4 BOU Sint Annen (Star of mag. 8.8 in coma.) 2016 2 9.95 S 7.8 TK 8.0B 15 12 SCH Eerbeek (Star of magn. 8.8 in coma.) 2016 2 7.964 M 7.4 TK 15.6L 24 8 5 BOU Sint Annen 2016 2 7.917 S 7.5 TK 8.0B 15 7 4 DIJ Burlage 2016 2 7.89 S 7.6 TK 8.0B 15 &12 6 SCH Eerbeek 2016 2 7.812 S 7.7 TK 5.0B 10 3 3 LOO Genk 2016 2 6.906 S 7.5 TK 8.0B 15 8 4 DIJ Burlage 2016 2 3.91 S 6.9 TK 8.0B 15 7 4/ DIJ Burlage 2016 2 3.853 M 7.1 TK 15.6L 24 8 4 BOU Zuidwolde 2016 2 3.83 M 7.4 TK 5.0B 10 10 5 0.4 90 GON Alto de la Garandilla - Escuredo, León 2016 2 2.823 S 7.1 TK 5.0B 10 4 4 LOO Genk 2016 2 2.097 S 7.1 TK 8.0B 15 10 5 DIJ Burlage 2016 1 30.85 S 7.7 TK 8.0B 15 5 5 DeS Beert (Poor transparancy.) 2016 1 30.770 S 6.9 TK 5.0B 10 10 3/ BOU Sint Annen 2016 1 30.744 S 6.9 TK 8.0B 15 12 4 DIJ Burlage 2016 1 28.875 S 6.7 TK 8.0B 15 12 5 DIJ Burlage 2016 1 28.813 S 7.0 TK 5.0B 10 4 4 LOO Genk 2016 1 28.80 S 6.6 TK 5.6B 8 &15 5 SCH Eerbeek (In 20.0L at 42x, weak dusttail of 0.6° in p.a. 155 deg.) 2016 1 28.760 S 7.5 TK 5.0B 10 &10 3/ COM Roden 2016 1 28.756 S 6.9 TK 5.0B 10 10 3/ BOU Sint Annen 2016 1 28.25 S 6.7 TK 5.6B 8 &15 5 SCH Eerbeek (Moonlight.) 2016 1 25.743 S 6.7 TK 8.0B 15 10 4/ DIJ Burlage 2016 1 22.253 S 6.6 TK 5.0B 10 5 4 LOO Genk 2016 1 22.22 S 6.5 TK 5.6B 8 &13 7 SCH Eerbeek 2016 1 21.899 S 6.6 TK 5.0B 10 4 5 LOO Genk (Moonlight.) 2016 1 19.24 S 6.3 TK 5.6B 8 &15 6 SCH Eerbeek 2016 1 19.188 S 6.7 TK 5.0B 10 11 5 LOO Genk 2016 1 18.963 S 6.7 TK 8.0B 15 10 5 DIJ Burlage (Moonlight.) 2016 1 18.23 S 6.3 TK 5.6B 8 &13 6 SCH Eerbeek (In 15x80B tail of 0.6° in p.a. 210 deg.) 2016 1 18.083 M 6.5 TK 5.0B 10 11 4/ BOU Groningen 2016 1 17.91 6.7 8.0B 20 6 4 BAR Milan (Moonlight.) 2016 1 17.236 S 6.1 TK 5.0B 10 5 5 LOO Genk 2016 1 17.19 S 6.2 TK 5.6B 8 &12 7 SCH Eerbeek (Hint of tail in p.a. 205 deg.) 2016 1 16.931 S 6.6 TK 8.0B 15 7.5 5 DIJ Burlage (Moonlight.) 2016 1 16.018 S 6.5 TK 5.0B 10 12 3/ BOU Groningen 2016 1 15.94 S 6.3 TK 4.2B 8 13 6/ SCH Bussloo 2016 1 14.174 S 6.6 TK 3.0B 8 5 5 LOO Genk 2016 1 13.955 S 6.5 TK 8.0B 15 8 5 DIJ Burlage 2016 1 13.882 M 6.3 TK 5.0B 10 11 4/ BOU Sint Annen 2016 1 11.73 M 6.6 TK 5.0B 7 12.2 5 WYA Walcha, NSW (Outer coma semi-transparent, inner coma strongly condensed but not stellar. Enhances strongly in Swan Band filter. No tail visible. Low altitude 8.3°. Nautical twilight, slight interference.) 2016 1 11.000 M 6.2 TK 8.0B 15 7.5 6 DIJ Burlage 2016 1 10.993 S 6.4 TK 5.0B 10 6 5 LOO Genk 2016 1 9.993 M 6.3 TK 8.0B 15 8 4/ BOU Sint Annen 2016 1 9.79 S 6.4 TJ 7.0R 10 17 6 YOS Mt. Hanadate, Ibaraki 2016 1 9.78 S 7.0 TJ 40.0L 36 11 6 24m 185 YOS Mt. Hanadate, Ibaraki (Very bright and large. It looks fan shaped.) 2016 1 9.04 M 6.5 TK 5.0B 10 8 6 GON Sierra de Abredo - Coaña, Asturias (Altitude 19°.) 2016 1 8.978 M 6.2 TK 8.0B 15 9 5 BOU Sint Annen 2016 1 8.967 M 6.3 TK 8.0B 15 7.5 5 DIJ Burlage 2016 1 8.25 S 6.3 TK 8.0B 15 7 4 DeS Beert 2016 1 8.21 S 6.2 TK 6.0R 12 10 6 GIL Noordwijk aan Zee (With CLS-filter at 19x a 0.4° dusttail [p.a. 185 deg.] and a 1.5° gastail [p.a. 295 deg.] could be seen.) 2016 1 8.21 S 6.6 TK 5.6B 8 &15 6 SCH Eerbeek (In 15x80B weak dusttail of about 0.8° in p.a. 220 deg.) 2016 1 8.132 S 6.1 TK 5.0B 10 8 6 LOO Genk 2016 1 7.222 S 6.4 TK 5.0B 10 4 6 LOO Genk 2016 1 1.053 M 6.4 TK 8.0B 15 6.1 6 DIJ Burlage (Moonlight.) 2016 1 1.048 M 6.3 TK 8.0B 15 7 4 BOU Burlage, Germany (Moonlight.) 2015 12 30.25 S 6.3 TK 5.6B 8 &10 7 SCH Eerbeek (Moonlight.) 2015 12 28.21 S 6.2 TK 8.0B 15 8 7 SCH Eerbeek (Moonlight.) 2015 12 24.22 S 6.3 TK 7.0B 12 5 6 GIL Noordwijk aan Zee (97% illuminated Moon at 6° altitude behind thick cloudbank.) 2015 12 22.25 V 6.6 TK 3.0R 10.0 QVA Holmestrand 2015 12 21.250 S 5.9 TK 5.0B 10 5 7 LOO Genk (Twilight.) 2015 12 21.24 M 6.2 TK 5.0B 10 10 6 GON Alto del Castro, León (In 25x100B ion tail 1.1° in p.a. 280 deg, dust tail 0.4° in p.a. 150 deg.) 2015 12 21.24 S 6.2 TK 7.0B 12 6 6 GIL Noordwijk aan Zee 2015 12 19.31 M 6.2 TK 5.0B 7 7 5 GOI Araçatuba (Nautical twilight.) 2015 12 19.30 M 6.3 TK 10.0B 20 6 6 GOI Araçatuba 2015 12 18.71 M 6.4 TK 5.0B 7 8.5 6 WYA Walcha, NSW (Coma diffuse and opaque at centre, small stellar central condensation. Enhances strongly in Swan Band filter. Low altitude 10.2°.) 2015 12 18.22 S 6.3 TK 7.0B 12 5 5 GIL Noordwijk aan Zee 2015 12 17.71 M 6.4 TK 5.0B 10 8.8 5/ WYA Walcha, NSW (Outer coma diffuse and semi-opaque brightening to strongly condensed centre, sometimes stellar. Low altitude 9.7°. Tail hard to make out, so was not visible.) 2015 12 16.72 B 6.4 AA 10.0B 25 SEA Cowra, NSW 2015 12 12.31 M 6.3 TK 10.0B 20 6 6 GOI Araçatuba 2015 12 12.25 M 6.4 TK 10.0B 25 5 6 0.8 290 GON Collada de la Cobertoria, Asturias (Also dust tail 0.6° in p.a. 150 deg.) 2015 12 12.24 M 6.2 TK 5.0B 10 5 6/ GON Collada de la Cobertoria, Asturias 2015 12 10.224 S 6.4 TK 5.0B 10 6 6 LOO Genk 2015 12 10.201 M 6.4 TK 8.0B 15 4.5 6 DIJ Burlage 2015 12 9.23 S 6.2 TK 6.0R 12 5 6 GIL Noordwijk aan Zee (With 20x80B coma looked greenish and a 20' dusttail could be seen in p.a. 145 deg.) 2015 12 8.23 S 6.6 TK 8.0B 15 6 7 SCH Eerbeek (Moonlight.) 2015 12 8.224 M 6.4 YG 8.0B 15 4 6/ BOU Sint Annen (Altitude 16°. Comet well visible 6° above thin 9.7% illuminated lunar crescent.) 2015 12 8.22 S 6.4 TK 7.0B 12 4 5 GIL Noordwijk aan Zee 2015 12 8.22 S 6.4 TK 8.0B 15 3 6 DeS Beert 2015 12 8.209 S 6.4 TK 5.0B 10 6 6 LOO Genk (Moonlight.) 2015 12 7.72 M 6.5 TK 25.0L 39 3 5/ WYA Walcha, NSW (Moonlight, twilight, slightly sky haze. Low altitude 8.5°. Ground fog present to 0.5m. Coma appears quite diffuse and opaque, pale aqua-blue in colour, well condensed and almost stellar. Enhances strongly in Swan Band filter. Background sky washed with moonlight, comet was easy to locate 2.6° away from the thin crescent Moon. Not visible in 11x70B due to scattered moonlight and haze.) 2015 12 6.25 M 6.3 TK 5.0B 10 5 6 GON Collada de la Cobertoria, Asturias 2015 12 6.24 M 6.5 TK 10.0B 25 4 6 0.6 290 GON Collada de la Cobertoria, Asturias (Some moonlight interference. Also dust tail 0.3° in p.a. 150 deg.) 2015 12 5.21 S 6.5 TK 8.0B 15 4 7 DeS Beert (Altitude 10°, bad transparency, moonlight.) 2015 12 3.239 M 6.5 TK 8.0B 15 4.0 6 DIJ Burlage (Moonlight.) 2015 12 1.26 S 6.4 TK 10.0B 25 4 6 GON Puerto de Aralla, León 2015 12 1.25 S 6.5 TK 20.3T 77 3.5 5/ 0.3 290 GON Puerto de Aralla, León (Also dust tail 0.3° in p.a. 140 deg.) 2015 12 1.24 S 6.2 TK 5.0B 10 4 6 GON Puerto de Aralla, León (Altitude 11°. Moonlight interference. Zodiacal light. Mountain location, very clear sky.) 2015 11 23.25 S 5.7 TK 10.0B 25 4 5 0.2 280 GON Peña Nebina - Ferreruela de Tabara, Zamora (Altitude 5°. Comparison stars at the same low altitude as the comet. Astronomical twilight. Zodiacal light. Observation made under better conditions, from a higher and darker mountain location, providing a wider coma diameter and brighter m1 estimate in comparison with my previous observation.) 2015 11 22.25 S 6.0:TK 10.0B 25 3 5 GON Roales de Campos, Valladolid (Altitude 4°. Astronomical twilight. Zodiacal light.) 2015 10 16.39 M 7.0 TK 7.0B 11 7.6 6 7.5m 138 WYA Walcha, NSW (Low altitude 8.9°. Moonlight. Coma diffuse, bright stellar central condensation, enhances strongly in Swan Band filter. Through 25.0L at 39x I could trace the tail to 35 in length in p.a. 138 deg. with first 8.2 of the tail opaque and pale-green in colour. The inner coma enhanced strongly in Swan Band and also appeared as an opaque pale-green colour.) 2015 10 13.94 sM 6.5 TK 10.0B 20 8 5 GOI Araçatuba (Comet altitude 11°.) 2015 10 9.39 M 6.9 TK 5.0B 7 10.5 5/ WYA Walcha, NSW (Low altitude 15.5°. Outer coma diffuse, inner coma opaque with compact central condensation, sometimes stellar. Centre enhances strongly in Swan Band filter. Tail visible in 25.0L at 39x, 11.5 of tail length opaque and fades with a [transparent] traceable length of 58' in p.a. 136 deg.) 2015 10 6.96 S 6.5 TK 5.0B 7 12 4 GOI Araçatuba 2015 10 5.94 M 6.5 TK 5.0B 7 12 4/ GOI Araçatuba 2015 10 5.39 M 7.0 TK 7.0B 11 6.5 4 WYA Walcha, NSW (Close to mag 8.0 star, 4 away. Sky slightly hazy. Low altitude 19.1°. Faint transparent outer coma, opaque inner coma. Through 25.0L the tail extension 8.3 in length in p.a. 132 deg. is opaque and fades to a transparent tail tracing out to 40 in length in same p.a.) 2015 10 4.39 M 7.2 TK 8.0B 20 5 5 CAM Warners Bay, NSW 2015 10 3.38 M 7.3 TK 8.0B 20 5 4 CAM Warners Bay, NSW 2015 10 3.38 M 7.1 TK 7.0B 11 9 6 WYA Walcha, NSW (Outer coma transparent and faint, inner coma disc-like and opaque with small stellar central condensation. Enhances well in Swan Band filter. Through 25.0L at 39x there is a tail visible which was traced to 27 in length approximately in p.a. 133 deg. Curiously there was a faint smudge around 3 in width, 29.5 from the coma centre in p.a. 133 deg., which may be part of the tail [DE?].) 2015 10 2.39 M 7.4 TK 8.0B 20 5 5 CAM Warners Bay, NSW 2015 10 1.95 S 6.6 TK 5.0B 7 10 4 GOI Araçatuba 2015 10 1.94 M 6.7 TK 10.0B 20 8 5 20m 135 GOI Araçatuba 2015 10 1.42 B 6.6 AA 10.0B 25 4 5 0.2 130 SEA Cowra, NSW 2015 10 1.39 M 7.4 TK 8.0B 20 5 4 CAM Warners Bay, NSW 2015 9 22.42 M 7.2 TK 25.0L 39 4.2 6 58m 128 WYA Walcha, NSW (Moonlight. Outer coma diffuse, inner coma opaque pale aqua-blue in colour, enhances strongly in Swan Band filter. First 14 of tail also enhances slightly in Swan Band filter.) 2015 9 21.43 M 7.3 TK 8.0B 20 6 3 CAM Warners Bay, NSW 2015 9 19.95 S 6.3 TK 5.0B 7 12 3 GOI Araçatuba (Moonlight.) 2015 9 16.96 S 6.2 TK 5.0B 7 15 3 GOI Araçatuba 2015 9 16.55 B 7.2 AA 10.0B 25 SEA Cowra, NSW 2015 9 16.41 M 7.2 TK 8.0B 20 5 4 CAM Warners Bay, NSW 2015 9 16.40 M 7.1 TK 7.0B 11 6.3 4 0.15 124 WYA Walcha, NSW (Coma close to bright stars. Coma pale aqua-blue in colour, faint outer coma, bright opaque inner coma, moderately condensed.) 2015 9 14.94 S 6.3 TK 5.0B 7 15 3 GOI Araçatuba 2015 9 12.45 M 7.4 TK 8.0B 20 6 3 CAM Warners Bay, NSW 2015 9 11.39 M 7.2 TK 8.0R 35 7 4 CAM Warners Bay, NSW 2015 9 11.37 M 7.1 TK 7.0B 11 11.5 4 0.2 121 WYA Walcha, NSW (Coma very diffuse. Faint outer coma, broad moderately condensed centre, pale aqua-blue in colour. Observing site altitude 1250m. Limiting magnitude in vicinity of comet +6.3.) 2015 9 10.47 M 6.8 AA 10.0B 25 6 5 0.3 120 SEA Cowra, NSW 2015 9 10.42 M 7.1 TK 8.0B 20 8 4 CAM Warners Bay, NSW 2015 9 9.41 M 7.0 TK 8.0R 16 8 4 CAM Warners Bay, NSW 2015 9 7.38 M 6.8 TK 8.0R 16 8 3 CAM Warners Bay, NSW 2015 9 6.53 S 6.7 AA 10.0B 25 0.5 118 SEA Cowra, NSW 2015 9 3.37 M 6.4 TK 8.0R 16 10 4 CAM Warners Bay, NSW 2015 9 2.94 S 6.3 TK 5.0B 7 15 4 GOI Araçatuba 2015 9 2.00 S 6.3 HD 5.0B 7 15 3/ GOI Araçatuba 2015 9 1.37 M 6.4 TK 8.0B 20 12 4 CAM Warners Bay, NSW 2015 8 30.927 S 6.4 HD 5.0B 7 15 3/ GOI Araçatuba 2015 8 28.94 S 6.4 HD 5.0B 7 15 3 GOI Araçatuba (Moonlight.) 2015 8 28.93 S 6.5 HD 10.0B 20 10 4 GOI Araçatuba (Moonlight.) 2015 8 25.51 M 6.6 TK 8.0B 20 8 4 CAM Warners Bay, NSW 2015 8 24.18 S 6.5 TK 5.0B 7 10 3 GOI Araçatuba (Moonlight.) 2015 8 24.17 S 6.6 TK 10.0B 20 8 3/ GOI Araçatuba (Moonlight.) 2015 8 21.11 S 6.6 TK 5.0B 7 14 4 GOI Araçatuba 2015 8 20.50 M 6.7 TK 8.0B 20 12 4 CAM Warners Bay, NSW 2015 8 20.12 S 6.8 TK 10.0B 20 10 4/ 1 75 GOI Araçatuba 2015 8 20.11 S 6.6 TK 5.0B 7 15 4 GOI Araçatuba 2015 8 19.55 M 6.7 TK 8.0B 20 15 4 CAM Warners Bay, NSW 2015 8 18.47 M 6.7 TK 8.0B 20 14 4 CAM Warners Bay, NSW 2015 8 18.38 M 7.2 TK 5.0B 7 13.6 4 16m 62 WYA Walcha, NSW (Slight Moonlight interference. Outer coma very diffuse and transparent with a semi-transparent inner coma brightening to a moderately condensed centre. Centre of coma enhances well in Swan Band filter. Through 25.0L at 39x the ion tail traces out to 22 in length in p.a. 82 deg. Diameter around 7.7 and a DC of 6, inner coma enhances well in Swan Band filter. The dust tail is very broad and difficult to determine centreline direction of symmetry.) 2015 8 17.39 M 6.8 TK 8.0B 20 12 4 CAM Warners Bay, NSW 2015 8 16.72 M 6.8 TK 8.0R 16 12 4 CAM Warners Bay, NSW 2015 8 15.94 S 6.7 TK 5.0B 7 14 4 GOI Araçatuba 2015 8 15.50 S 7.1 AA 3.5B 6 SEA Cowra, NSW (In 25x100B, coma diameter 4' and tail 0.2° long in p.a. 55 deg.) 2015 8 15.00 S 6.8 TK 5.0B 7 12 4 GOI Araçatuba 2015 8 14.49 M 6.8 TK 8.0B 20 15 4 CAM Warners Bay, NSW 2015 8 13.94 S 6.8 TK 5.0B 7 12 4 GOI Araçatuba 2015 8 13.77 M 7.1 TK 5.0B 7 11.4 4 WYA Walcha, NSW (Coma diffuse, slightly brighter and moderately condensed centre. Slight enhancement in Swan Band filter.) 2015 8 13.45 M 7.0 TK 8.0R 16 12 4 CAM Warners Bay, NSW 2015 8 13.04 S 6.8 TK 5.0B 7 12 4 GOI Araçatuba 2015 8 12.77 M 6.9 TK 8.0R 16 12 5 CAM Warners Bay, NSW 2015 8 12.22 S 7.0 TK 10.0B 20 8 4/ 40m 15 GOI Araçatuba 2015 8 12.21 S 6.9 TK 5.0B 7 12 4 GOI Araçatuba 2015 8 11.78 M 7.0 TK 8.0R 16 12 5/ CAM Warners Bay, NSW 2015 8 11.04 S 6.9 TK 5.0B 7 14 4 GOI Araçatuba 2015 8 10.77 M 7.0 TK 8.0R 16 10 5 15m 30 CAM Warners Bay, NSW 2015 8 10.40 M 7.1 TK 5.0B 7 13.3 4 WYA Walcha, NSW (Coma dims in Swan Band filter but centre is enhanced slightly. Coma elongated to NNE approximately. Close to bright stars.) 2015 8 10.00 S 7.0 TK 5.0B 7 12 4 GOI Araçatuba 2015 8 8.79 M 7.1 TK 8.0R 16 10 4 10m 25 CAM Warners Bay, NSW 2015 8 8.52 S 6.9 AA 5.0B 10 SEA Cowra, NSW 2015 8 8.04 S 7.0 TK 5.0B 7 12 4 GOI Araçatuba 2015 8 7.75 M 7.1 TK 8.0B 20 10 4 CAM Warners Bay, NSW 2015 8 7.39 M 7.3 TK 5.0B 7 10.5 4 WYA Walcha, NSW (Coma dims slightly using Swan Band filter with the centre slightly enhancing. Coma elongated to the North. Magn. 9.5 star in coma 5 away from centre. Tail not visible in 7x50B but visible in 25.0cm-L at 39x, semi-transparent and 13.5 in length in p.a. 350 deg., 10 in width at its extremity. Coma diameter 3.8 with a DC of 6.) 2015 8 7.08 S 7.1 TK 5.0B 7 12 4 GOI Araçatuba 2015 8 6.78 M 7.1 TK 8.0B 20 8 5 CAM Warners Bay, NSW 2015 8 6.08 S 7.1 TK 5.0B 7 12 4 GOI Araçatuba 2015 8 5.76 M 7.0 TK 8.0B 20 8 4 CAM Warners Bay, NSW 2015 8 5.06 S 7.1:TK 5.0B 7 10 4 GOI Araçatuba (Comet very near a star of magn. 7.1 [TK].) 2015 8 4.78 M 7.1 TK 8.0B 20 8 4 CAM Warners Bay, NSW 2015 8 4.02 S 7.2 TK 5.0B 7 10 4 GOI Araçatuba 2015 8 2.98 S 7.3 TK 5.0B 7 8 4 GOI Araçatuba 2015 8 2.76 M 7.5 TK 8.0B 20 6 4 CAM Warners Bay, NSW 2015 8 2.21 S 7.4 TK 10.0B 20 8 4/ GOI Araçatuba (Moonlight.) 2015 7 31.77 M 7.6 TK 8.0B 20 6 4 CAM Warners Bay, NSW 2015 7 28.75 M 7.7 TK 8.0R 35 7 6 5m 350 CAM Warners Bay, NSW 2015 7 27.77 M 7.8 TK 8.0R 35 6 6 5m 350 CAM Warners Bay, NSW 2015 7 27.72 M 7.7 TK 5.0B 7 11.2 5 WYA Walcha, NSW (Coma diffuse with brighter but not stellar centre, appears as a semi-transparent luminous ball. Enhances slightly using Swan Band filter. Tail not noticeable in binoculars but through 25cm-L at 39x the tail has a length of 8.7 in p.a. 338 deg. approximately.) 2015 7 26.63 M 7.9 TK 8.0R 35 6 6 5m 350 CAM Warners Bay, NSW 2015 7 26.25 S 7.9 TK 5.0B 7 8 4 GOI Araçatuba 2015 7 26.24 S 8.0 TK 10.0B 20 7 4/ GOI Araçatuba 2015 7 24.64 M 8.0 TK 8.0R 16 8 6 4m 350 CAM Warners Bay, NSW 2015 7 24.20 S 8.0 TK 5.0B 7 8 4 GOI Araçatuba 2015 7 24.19 S 8.1 TK 10.0B 20 7 4/ GOI Araçatuba 2015 7 23.17 S 8.2 TK 10.0B 20 7 4/ GOI Araçatuba 2015 7 20.77 M 8.8 TK 8.0R 35 5 6 3m 320 CAM Warners Bay, NSW 2015 7 17.77 M 8.8 TK 8.0R 16 5 5 3m 340 CAM Warners Bay, NSW 2015 7 16.75 M 8.8 TK 8.0R 16 5 6 CAM Warners Bay, NSW 2015 7 14.17 M 9.0 TK 10.0B 20 5 4/ GOI Araçatuba 2015 7 13.75 M 9.0 TK 8.0R 36 5 6 3m 290 CAM Warners Bay, NSW 2015 7 12.29 S 9.1 TK 10.0B 20 5 4/ GOI Araçatuba 2015 7 11.25 S 9.2 TK 10.0B 20 5 4 GOI Araçatuba 2015 7 10.72 M 9.4 TK 40.6L 76 3 6 3m 290 CAM Warners Bay, NSW 2015 7 10.23 M 9.4 TK 22.0L 60 4 5 GOI Araçatuba 2015 7 8.73 M 9.5 TK 40.6L 76 2.2 5 3m 290 CAM Warners Bay, NSW 2015 7 8.53 S 9.6 AA 10.0B 25 3 5 SEA Cowra, NSW 2015 7 7.76 M 9.7 TK 40.6L 76 2 5 CAM Warners Bay, NSW 2015 7 7.50 M 9.6 TK 25.0L 39 3.6 6 WYA Walcha, NSW (Coma dims in Swan Band filter but centre of coma and central condensation still visible. Coma elongated in p.a. 262 deg. [ion tail forming] and also in p.a. 331 deg. [dust tail?], best visible at 83x magnification. Outer coma diffuse and transparent, brightens to an opaque inner coma with a small stellar central condensation. Low altitude 13.3°.) 2015 7 6.73 M 9.8 TK 40.6L 76 2 5 CAM Warners Bay, NSW 2015 7 5.73 M 9.9 TK 40.6L 76 2.3 5 CAM Warners Bay, NSW 2015 6 29.78 S 10.0 TK 20.3L 62 3 5 CAM Warners Bay, NSW 2015 6 29.22 S 10.0 TK 22.0L 60 3 4/ GOI Araçatuba 2015 6 27.76 S 10.1 TK 40.6L 76 3 5 CAM Warners Bay, NSW 2015 6 27.75 M 10.0 TK 25.0L 39 3.3 5/ WYA Walcha, NSW (Coma dims slightly using Swan Band filter. Broad fan-like extension to the West approximately. Bright opaque inner coma, sometimes stellar in good seeing, pale-blue in colour. Outer coma transparent and faint.) 2015 6 26.75 S 10.3 TK 40.6L 76 3 5 CAM Warners Bay, NSW 2015 6 26.74 M 10.4:AQ 25.0L 39 4 5/ WYA Walcha, NSW (Coma elongated to the West approximately. Magnitude uncertain due to cloud interference.) 2015 6 26.22 S 10.2 TK 22.0L 60 3 5 GOI Araçatuba (Enhancement with Swan band filter.) 2015 6 22.77 M 10.3 TK 40.6L 76 2.0 5 CAM Warners Bay, NSW 2015 6 22.76 M 10.2 AQ 25.0L 39 3.5 6 WYA Walcha, NSW (Coma elongated to the West. Small bright central condensation whitish in colour, opaque inner coma. Coma dims, especially the centre, with Swan Band filter. Appears in same field as galaxy NGC 7793 22 away.) 2015 6 22.21 M 10.3 TK 22.0L 60 2.5 5 GOI Araçatuba 2015 6 21.80 S 10.3 TK 40.6L 76 2.0 5 CAM Warners Bay, NSW 2015 6 20.23 M 10.5 TK 22.0L 60 2.5 5 GOI Araçatuba (Little enhancement with Swan filter.) 2015 6 19.61 M 10.6 AQ 25.0L 39 3.9 6 WYA Walcha, NSW (Coma elongated to the SW. Bright stellar central condensation, inner coma opaque and fading to transparent outer coma. Dims using Swan Band filter.) 2015 6 17.79 S 10.4 TK 40.6L 76 1.8 5 CAM Warners Bay, NSW 2015 6 14.80 S 10.7 TK 40.6L 76 1.8 5 CAM Warners Bay, NSW 2015 6 13.29 S 10.6 TK 22.0L 60 2 4/ GOI Araçatuba (Little or no enhancement with Swan filter.) 2015 6 8.79 S 11.3 AQ 40.6L 76 1.6 4 CAM Warners Bay, NSW 2015 6 7.27 S 10.9 AU 22.0L 60 2 4/ GOI Araçatuba (Moonlight.) 2015 6 6.80 S 11.5 AQ 40.6L 76 1.3 4 CAM Warners Bay, NSW 2015 6 5.76 S 11.6 AQ 40.6L 76 1.3 4 CAM Warners Bay, NSW 2015 6 4.75 M 11.8 AQ 25.0L 83 0.9 4 WYA Walcha, NSW (Moonlight. Close to mag 11.3 star. Coma diffuse with brighter inner coma, moderately condensed centre.) 2015 6 3.77 S 11.4 AQ 40.6L 76 1.4 4 CAM Warners Bay, NSW 2015 6 2.75 S 11.6 AQ 40.6L 76 1.4 4 CAM Warners Bay, NSW 2015 6 1.79 S 11.4 AQ 40.6L 76 1.5 4 CAM Warners Bay, NSW 2015 6 1.75 M 11.6 AQ 25.0L 83 1.1 4 WYA Walcha, NSW (Moonlight. Outer coma enhances slightly in Swan Band filter but otherwise does not enhance overall. Diffuse outer coma brightening to an opaque, weakly condensed inner coma.) 2015 5 31.76 S 11.4 AQ 40.6L 76 1.6 4 CAM Warners Bay, NSW 2015 5 25.78 S 11.6 AQ 40.6L 76 1.3 4 CAM Warners Bay, NSW 2015 5 24.33 S 11.0:AU 22.0L 160 1.5 4/ GOI Araçatuba (Very near a star with magn. 9.1. No enhancement with Swan filter.) 2015 5 16.33 S 11.4 AU 22.0L 120 2 4/ GOI Araçatuba 2015 5 14.74 M 12.3 AQ 25.0L 83 1 6 WYA Walcha, NSW (Moonlight. Coma diffuse, gradually brightening to opaque inner coma and a faint stellar central condensation. Also visible at 39x but not easily able to do observation due to faint stars nearby. Coma appears slightly elongated to the NW approximately. Does not enhance in Swan Band filter.) 2015 5 13.79 S 11.6 AQ 40.6L 76 1.2 4 CAM Warners Bay, NSW 2015 5 12.79 S 11.4 AQ 40.6L 165 1.3 4 CAM Warners Bay, NSW 2015 5 11.80 S 11.6 AQ 40.6L 165 1.3 4 CAM Warners Bay, NSW 2015 5 10.80 S 11.4 AQ 40.6L 165 1.5 4 CAM Warners Bay, NSW 2015 5 9.79 S 11.7 AQ 40.6L 165 1.2 4 CAM Warners Bay, NSW 2015 5 8.78 S 11.8 AQ 40.6L 165 1.2 3/ CAM Warners Bay, NSW 2015 5 8.75 M 12.2 AQ 25.0L 83 1.0 4 WYA Walcha, NSW (Moonlight. Coma diffuse with slightly brighter central condensation. Does not enhance in Swan Band filter.) 2015 5 7.81 S 11.8 AQ 40.6L 165 1.2 3 CAM Warners Bay, NSW 2015 5 6.75 S 11.9 AQ 25.0L 83 1.1 3 WYA Walcha, NSW (Moonlight. Coma diffuse with slightly brighter but weakly condensed centre. Improved seeing conditions made it much easier to see than my previous observation.) 2015 5 5.73 M 12.1:AQ 25.0L 83 1 3/ WYA Walcha, NSW (Moonlight. Very difficult, magnitude uncertain due to moonlight. Visible in good seeing. Coma shows as a faint smudge with a slightly brighter centre. Outer coma washed out by moonlight into background sky. Observed over a 40 minute period. Does not enhance in Swan Band filter.) 2015 5 1.34 S 12.2 AU 22.0L 160 2 4/ GOI Araçatuba 2015 4 27.73 M 12.6 AQ 25.0L 83 1 4/ WYA Walcha, NSW (Coma small and diffuse with a slightly brighter, moderately condensed centre. Does not enhance in Swan Band filter.) 2015 4 26.78 S 12.8 AQ 40.6L 165 1.2 4 CAM Warners Bay, NSW 2015 4 25.78 S 12.8 AQ 40.6L 165 1.2 4 CAM Warners Bay, NSW 2015 4 15.77 M 13.1 AQ 25.0L 83 0.8 3/ WYA Walcha, NSW (Moonlight. Coma edges diffuse, moderately condensed centre. Does not enhance in Swan Band filter.) 2014 12 19.44 S 13.6 AQ 25.0L 83 1 2 WYA Walcha, NSW (Coma very diffuse, difficult, visible in periods of good seeing. Slight interference from zodiacal light.) 2014 11 22.47 S 14.2 AQ 25.0L 166 0.5 3 WYA Walcha, NSW (Coma small, diffuse, slight brightening to centre. Visible in periods of good seeing. Clear sky, humid conditions.) 2014 11 17.43 S 14.1 AQ 25.0L 83 0.8 3 WYA Walcha, NSW (Coma diffuse and even in brightness with small slightly brighter central condensation.) 2014 11 12.43 S 14.0 AQ 25.0L 83 0.7 2 WYA Walcha, NSW (Coma diffused, sometimes stellar in good seeing.) 2014 10 28.52 M 14.4 AQ 25.0L 83 0.4 3/ WYA Armidale, NSW (Coma small and diffuse, even in brightness with a moderately condensed central condensation, sometimes appears stellar. Close to mag 13.8 star, 1.5 to SW.) 2014 10 25.45 S 14.3 AU 40.0L 257 0.4 6 YOS Kita-karuizawa, Gunma (Tiny. Looks similar to a faint star.) 2014 10 22.46 S 14.3 AQ 35.0T 71 0.9 3 WYA Armidale, NSW (Coma very faint and diffused, inner coma slightly brighter but weakly condensed.) 2014 10 21.44 S 14.3 AQ 25.0L 83 0.4 2/ WYA Walcha, NSW (Coma diffuse and small, sometimes shows a faint stellar central condensation in good seeing.) 2014 10 16.48 S 14.3 AQ 25.0L 83 0.6 3 WYA Walcha, NSW (Coma small and diffuse, difficult to see due to scintillation, sometimes appears to have a faint stellar central condensation.) 2014 10 15.46 S 14.2 AQ 25.0L 166 0.4 3 WYA Walcha, NSW (Coma diffuse and brighter in centre. Very close to star of magn. 14.3 [AQ]. Difficult due to scintillation. Slight movement noticeable over 15 minute period.)