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* * * * * C/2023 A3 (Tsuchinshan-ATLAS) * * * * *
Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2025 5 18.980 S[14.4:AQ 30.5T 139 !0.5 0 DIJ Burlage 2025 5 18.978 S[12.2 AQ 30.5T 139 !2.5 0 BOU Burlage, Germany (Comet not visible, altitude 37°. Comet very close to star of magn. 14.4, which was fairly well visible at both 73x and 139x. Excellent sky conditions with SQML = 21.6 at zenith.) 2025 5 16.98 S 11.0 TK 20.3T 77 5 1 GON Alto del Castro - Aralla, León 2024 12 28.77 S 9.6 TK 20.3T 77 1.7 5 0.3 60 GON Collada de Aralla, León 2024 12 27.77 S 9.5 TK 20.3T 77 1.7 5 0.3 60 GON Cubiellos - Sierra del Aramo, Asturias 2024 12 26.77 S 9.4 TK 20.3T 77 1.7 5 0.3 60 GON Cubiellos - Sierra del Aramo, Asturias 2024 12 23.78 S 9.4 TK 20.3T 77 1.7 5 0.15 60 GON Alto del Trichero - Soto y Amío, León 2024 12 23.73 S 9.6 TK 20.0L 80 & 2 4 SCH Eerbeek (Altitude 18°.) 2024 12 22.76 S 9.5 TK 20.0L 80 & 2 4 SCH Eerbeek (Altitude 12°.) 2024 12 8.40 S 9.7 TJ 40.0L 75 1.2 6 YOS Mt. Tsukuba, Ibaraki (I observed it during the occultation of Saturn. Not easy to see due to the strong moonlight and a nearby star.) 2024 12 6.82 B 8.7 TK 8.0B 20 1.5 7 0.2 60 GON Puerto de San Lorenzo - Teverga, Asturias 2024 12 6.81 B 9.5 TK 20.3T 77 1.5 6/ 0.3 60 GON Puerto de San Lorenzo - Teverga, Asturias 2024 12 4.767 S 8.8 TK 8.0B 15 3 4/ DIJ Burlage 2024 12 2.75 S 8.8 TK 20.0L 46 2 7 SCH Bussloo 2024 12 1.741 S 8.7 TK 8.0B 15 3 6/ DIJ Burlage 2024 11 30.721 S 8.5 TK 20.0L 45 2 7 LOO Genk 2024 11 30.721 S 8.7 TK 8.0B 15 4 6/ DIJ Burlage 2024 11 30.720 S 8.8 TK 15.5L 29 3.5 7 DIJ Burlage 2024 11 26.97 S 8.6 TK 10.0B 20 2.5 4/ 0.3 55 GOI Araçatuba (Altitude comet 9°.) 2024 11 26.76 S 8.3 TK 20.0L 42 2 7 SCH Eerbeek 2024 11 26.759 M 8.6 TA 15.6L 29 2.5 7 BOU Westerwijtwerd 2024 11 25.80 B 8.1 TK 5.0B 10 2 7 0.4 70 GON Collada de Brenes - Arenas de Iguña, Cantabria 2024 11 24.96 S 8.4 TK 10.0B 20 3 5 0.5 55 GOI Araçatuba 2024 11 22.767 S 8.6 TK 8.0B 15 2.5 4 DIJ Burlage 2024 11 17.96 M 7.8 HD 10.0B 20 3.5 6 1.0 60 GOI Araçatuba 2024 11 17.715 S 8.4 TK 8.0B 15 4.5 4 DIJ Burlage (Moonlight.) 2024 11 10.95 M 7.6 HD 10.0B 20 4 6 1.5 65 GOI Araçatuba (Moonlight.) 2024 11 6.84 B 7.0 TK 5.0B 10 3 7 1.4 70 GON Cubiellos - Sierra del Aramo, Asturias 2024 11 5.75 S 7.2 TK 8.0B 15 & 4 6 &0.6 67 SCH Eerbeek (Altitude comet 28°.) 2024 11 4.744 S 7.2 TK 5.0B 10 3 6 0.5 LOO Genk 2024 11 3.81 B 6.9 TK 5.0B 10 3 7 1.8 80 GON Cubiellos - Sierra del Aramo, Asturias 2024 11 3.77 S 6.9 TK 5.6B 8 & 4 6 SCH Eerbeek (Altitude comet 25°. In 15x80B, dusttail of about 0.6° in p.a. 68 deg.) 2024 11 3.763 M 7.0 HI 8.0B 15 3.5 6 1.5 70 BOU Burlage, Germany 2024 11 3.761 S 6.8 TK 8.0B 15 4 7 1.1 71 DIJ Burlage 2024 11 2.82 S 6.8 TK 5.6B 8 & 4 6 SCH Eerbeek (Altitude comet 13°. In 15x80B, dusttail of about 0.5° in p.a. 67 deg.) 2024 11 2.750 S 6.7 TK 8.0B 15 3.5 5/ 55m 73 DIJ Burlage 2024 11 1.42 B 6.5 AA 10.0B 25 2 75 SEA Cowra, NSW 2024 10 31.771 S 6.7 TK 5.0B 10 2.5 6 1.5 LOO Genk 2024 10 31.730 S 6.4 TK 8.0B 15 4 5/ 2 70 DIJ Burlage 2024 10 30.96 M 6.2 HD 5.0B 7 4 5 3.0 75 GOI Araçatuba 2024 10 30.43 B 6.4 AA 10.0B 25 & 2 77 SEA Cowra, NSW 2024 10 30.40 M 6.0 TK 5.0B 7 6 7 3.8 72 WYA Walcha, NSW (Altitude 17.2°. Comet dims in Swan Band filter, through my 25cm dob at 125x the central condensation enhances.) 2024 10 29.95 M 6.2 HD 5.0B 7 4 5 3.0 70 GOI Araçatuba 2024 10 29.78 B 5.9 TK 5.0B 10 4 7 4.4 70 GON Alto del Castro - Aralla, León 2024 10 29.43 B 6.0 AA 8.0B 15 4 7 2 75 SEA Cowra, NSW 2024 10 29.40 M 5.9 TK 5.0B 7 7 6 3.7 73 WYA Walcha, NSW (Altitude 16.1°. Clouds ended observation.) 2024 10 28.79 B 5.8 TK 5.0B 10 4 7 4.2 70 GON Cruz de Linares - Proaza, Asturias (Altitude 21°.) 2024 10 28.42 B 5.8 AA 5.0B 10 3 80 SEA Cowra, NSW 2024 10 28.39 M 5.4 TK 5.0B 7 10 6 4.5 74 WYA Walcha, NSW (Altitude 18.7°.) 2024 10 27.95 M 6.2:HD 10.0B 20 3 6 1.0 75 GOI Araçatuba 2024 10 27.792 S 6.0 TK 8.0B 15 4 5/ 2.1 74 DIJ Burlage 2024 10 27.75 M 6.1 TK 5.6B 8 & 6 5 &2.5 75 SCH Eerbeek (Central condensation in coma.) 2024 10 27.42 B 5.7 AA 10.0B 25 3 80 SEA Cowra, NSW 2024 10 26.805 S 5.3 TK 5.0B 10 2.5 7 4 LOO Genk 2024 10 25.760 M 5.0 TK 5.0B 10 7 6 76 DIJ Burlage 2024 10 25.752 M 5.5 YG 8.0B 15 7 2.0 75 BOU Lutjewolde (Humid conditions with fog forming.) 2024 10 25.75 M 5.6 TK 5.6B 8 & 7 6 3.7 75 SCH Eerbeek (Altitude comet 27°, altitude Sun -15°. Bright central condensation.) 2024 10 25.740 S 5.1 TK 5.0B 10 2.0 7 4.5 LOO Mee 2024 10 25.42 B 5.3 AA 10.0B 25 2.5 78 SEA Cowra, NSW 2024 10 25.40 S 4.6 TK 0.0E 1 22 3/ 6.2 74 WYA Walcha, NSW (Low altitude 13.9°.) 2024 10 25.40 M 4.8 TK 5.0B 7 11 6 6 74 WYA Walcha, NSW (Low altitude 14.5°.) 2024 10 24.764 M 5.0 TK 8.0B 15 5 8 5.6 82 DIJ Burlage 2024 10 24.76 M 5.4 TK 5.6B 8 & 7 6 2.5 72 SCH Houten (Altitude comet 24°, altitude Sun -18°. Bright sky due to fog and citylights. Bright central condensation.) 2024 10 24.756 M 5.3 YG 5.0B 7 5 7 4.5 78 BOU Burlage, Germany 2024 10 24.753 S 5.4 TK 5.0B 10 2.5 7 5 LOO Wouwberg 2024 10 24.42 B 5.4 AA 5.0B 10 5 75 SEA Cowra, NSW 2024 10 23.80 I 4.6 TK 0.0E 1 3 8 5 70 GON Valdevimbre, León (Altitude 25°.) 2024 10 22.799 M 5.0 TK 5.0B 10 7/ 8 70 DIJ Meedhuizen, Netherlands 2024 10 22.76 I 4.7 TK 0.0E 1 6 SCH Bussloo (Altitude comet 21°, altitude Sun -18°. In 15x80B, coma about 7', dusttail of about 5° in p.a. 75 deg. Bright central condensation.) 2024 10 22.42 B 5.2 AA 5.0B 10 6 SEA Cowra, NSW 2024 10 22.39 M 4.0 TK 0.0E 1 21 6 15.5 77 WYA Walcha, NSW (Low altitude 15.5°. Slight twilight and zodiacal light interference. Sun altitude -15.7°.) 2024 10 22.38 M 4.6 TK 5.0B 7 8 6/ 12 77 WYA Walcha, NSW (Low altitude 16.5°. Slight twilight and zodiacal light interference. Sun altitude -14.7°.) 2024 10 21.733 M 4.2 TK 8.0B 15 5 8 2 65 DIJ Burlage 2024 10 21.41 B 4.7 AA 10.0B 25 3 70 SEA Cowra, NSW 2024 10 21.39 M 4.1 TK 5.0B 7 7.5 6 WYA Walcha, NSW (Low altitude 12.6°. Slight twilight and zodiacal light interference. Sun altitude -17.3°.) 2024 10 20.80 I 4.3 TK 0.0E 1 3 8 13 70 GON Gamoniteiro - Sierra del Aramo, Asturias (Altitude 22°.) 2024 10 20.41 B 4.3 AA 10.0B 25 SEA Cowra, NSW (Naked eye a tail of 7° in about p.a. 65 deg. was visible.) 2024 10 20.40 B 3.9 YG 7.0R 10 10 7/ 7 80 YOS Mt. Hanadate, Ibaraki 2024 10 20.39 I 3.1 YG 0.0E 1 5 7 75 YOS Mt. Hanadate, Ibaraki 2024 10 20.38 M 4.2 TK 5.0B 7 13 6 WYA Walcha, NSW (Low altitude 13.7°. Slight twilight and zodiacal light interference. Sun altitude -14.9°.) 2024 10 20.38 M 3.6 TK 0.0E 1 20 6 15 74 WYA Walcha, NSW (Low altitude 14.1°. Slight twilight and zodiacal light interference. Sun altitude -14.5°.) 2024 10 19.41 S 3.8 AA 0.0E 1 &10 SEA Cowra, NSW 2024 10 19.38 M 3.2 TK 0.0E 1 20 6 19 73 WYA Walcha, NSW (Low altitude 11.8°. Slight twilight and zodiacal light interference, Sun altitude -15.1°.) 2024 10 18.93 M 4.2:HD 10.0B 20 3 7 1.0 70 GOI Araçatuba (Comet altitude 19°, Sun altitude -12°. Too many clouds.) 2024 10 18.788 M 4.0 TK 8.0B 15 7/ DIJ Burlage (Full moon.) 2024 10 17.80 I 3.8 TK 0.0E 1 3 8 11 70 GON Valdevimbre, León (Altitude 15°. End of astronomical twilight. Moonlight interference.) 2024 10 16.751 M 2.8 TK 5.0B 10 9 9.1 76 DIJ Stapelmoorerheide (Antitail 1.1° in p.a. 262 deg. Also visible with naked eye.) 2024 10 15.93 sM 2.7 HD 5.0B 7 3 7/ 4.0 65 GOI Araçatuba (Comet altitude 10°, Sun altitude -12°.) 2024 10 14.76 aS 1.6 TK 0.0E 1 & 5 6 SCH Eerbeek (Altitude comet 7°, altitude Sun -13°. Yellowish dusttail of about 10° in p.a. 70 deg. Bright central condensation.) 2024 10 14.749 sI 1.6 YG 0.0E 1 7 10 70 BOU Westerwijtwerd (Comet altitude 8.2° with Sun at -12.8°. Comet easily visible with a well condensed yellow head and a straight, fairly long dust tail.) 2024 10 14.747 sM 1.9 YG 5.0B 10 7/ 5 70 BOU Westerwijtwerd (Moonlight, twilight. Comet altitude 8.7° with Sun at -12.2°. A considerably longer tail length of about 12° was observed around Oct. 14.762 when the sky was darker with the Sun at -15.5°. In 15x80B a very faint antitail of 0.6° in p.a. 260 deg. could be observed before it was lost in the bright sky background near the horizon.) 2024 10 14.747 aI 1.2 TK 0.0E 1 7 10 70 DIJ Burlage 2024 10 14.747 aM 1.4 TK 8.0B 15 8 9.8 71 DIJ Burlage 2024 10 14.38 M 1.5:YG 6.6R 10 4 7 1.5 65 YOS Yokohama City, Kanagawa 2024 10 13.92 sM 0.6 HD 5.0B 7 2 8/ GOI Araçatuba (Clouds, comet altitude 6°, Sun altitude -8°.) 2024 10 13.733 I 0.7:TK 8.0B 15 8 5.4 67 DIJ Burlage (Also visible with naked eye. Altitude comet 8°, Sun -9°.) 2024 10 13.38 I 1.0:YG 0.0E 1 7 2 60 YOS Hitachi-Oomiya City, Ibaraki 2024 10 13.38 M 0.5:YG 7.0R 10 4 7 7 60 YOS Hitachi-Oomiya City, Ibaraki 2024 10 12.78 aI 0.3 TK 0.0E 1 3 8 2.2 70 GON Alto do Seixal, Lugo (Altitude 5°. End of nautical twilight.) 2024 10 12.729 I 0.6:TK 8.0B 15 8 DIJ Burlage (Also visible with naked eye. Altitude comet 5.5°, Sun -8.3°.) 2024 10 5.77 aM 0.8:TK 5.0B 7 4 7 26 255 WYA Walcha, NSW (Low altitude 0.8°, Sun altitude -10.2°. Strong twilight interference. Magnitude uncertain due to bright twilight and lack of suitable bright comparison stars visible. Tail traced to 26°, made by measuring the extremity of the tail while in a dark sky at 17:50 U.T.) 2024 10 5.35 sM 1.4 HD 10.0B 20 2.5 8 0.5 270 GOI Araçatuba 2024 10 5.35 sM 1.3 HD 5.0B 7 2 8/ GOI Araçatuba (Atmospheric polution. Comet altitude 5°, Sun altitude -8°.) 2024 10 3.77 aM 1.1 TK 5.0B 7 3 8 21 257 WYA Woolbrook, NSW (Low altitude 2.7°, Sun altitude -12.9°. Observation made at 4:30 am local time. Strong twilight interference. Visible naked eye with directvision. Tail traced to 21°, made by measuring the extremity of the tail while in a dark sky at 4:06am local time [18:06 U.T.],the coma was below the horizon at the time. In images taken at the same time the tail appears to have a slight noticeable bend, to the South, about 3° tailward from the coma.) 2024 10 1.77 M 2.0 TK 5.0B 7 4 7 3.0 257 WYA Woolbrook, NSW (Low altitude 7.7°, Sun altitude -10.9°. Strong twilight interference. Easily visible naked eye. White coloured transparent tail. Observation made at 4:43am local time. Pseudo-nucleus white in colour, parabolic coma white and opaque forward of the central condensation and transparent on the tail side.) 2024 10 1.77 M 2.0 TK 0.0E 1 5 8 13.5 257 WYA Woolbrook, NSW (Low altitude 5.0°, Sun altitude -13.7°. Twilight interference. Easily visible naked eye. Observation made at 4:30am local time.) 2024 10 1.34 I 2.0 HD 0.7E 1 8/ GOI Araçatuba 2024 10 1.34 M 2.1 HD 5.0B 7 3 8 5.0 260 GOI Araçatuba 2024 10 1.34 M 2.2 HD 10.0B 20 3 8 3.0 260 GOI Araçatuba (Atmospheric polution. Comet altitude 9°, Sun altitude -12°.) 2024 9 30.76 M 2.3 TK 0.0E 1 15 6 9.5 263 WYA Walcha, NSW (Low altitude 4.3°, Sun altitude -15.4°. Slight twilight interference. Easy naked eye. Observation made at 4:23am local time, I was still able to see it naked eye well into twilight until 5:10am local time. At that time it appeared fainter than Regulus but stellar in appearance with DC=8 along with a degree or so of tail.) 2024 9 29.34 M 2.3 HD 5.0B 7 3 8 1.5 260 GOI Araçatuba 2024 9 29.34 M 2.4 HD 10.0B 20 2.5 8 2.0 260 GOI Araçatuba (Atmospheric polution. Comet altitude 10°, Sun altitude -12°.) 2024 9 28.34 I 2.5 HD 10.0B 20 2 8 0.5 250 GOI Araçatuba (Intense atmospheric polution. Comet altitude 10°, Sun altitude -12°.) 2024 9 28.23 I 2.7 TK 5.0B 10 2 8 0.4 260 GON Santiago Millas, León (Altitude 4°. Beginning of nautical twilight.) 2024 9 23.77 I 3.3 TK 0.0E 1 5 8 WYA Walcha, NSW (Low altitude 6.8°. Moonlight and twilight interference. Coma appears as a white coloured star-like object with small hazy outer coma. Difficult due to thin haze/cloud layers in twilight drifting over the comet. I was able to make it out easy enough with averted vision.) 2024 9 23.77 M 3.6 TK 7.0B 15 3.0 7/ 2.5 250 WYA Walcha, NSW (Low altitude 5.3°, Sun altitude -15.9°. Moonlight and twilight interference. Faint tail visible. Coma golden tinged in colour, tail opaque and white in colour, fading gradually. No extinction corrections required. Through my 10”f/5 dob at 40x and 125x, the pseudo-nucleus, coma and part of the tail was quite golden in colour, appears that there may be possibly internal coma structure forward of the nucleus but cannot confirm due to scintillation effects at high magnification.) 2024 9 22.78 M 3.7 TK 7.0B 15 3.1 8 1.7 253 WYA Walcha, NSW (Low altitude 7.7°, Sun altitude -13.2°. Moonlight and twilight interference. Faint tail visible. Coma white in colour, tail opaque and white in colour for first quarter of tail length, about 20’ or so. No extinction corrections required.) 2024 9 21.77 M 3.8 TK 7.0B 15 2.0 8 1.2 251 WYA Walcha, NSW (Low altitude 5.0°. Moonlight and twilight interference. Faint tail visible. No extinction corrections required.) 2024 9 20.77 M 4.0 TK 7.0B 15 2.2 7 50m 248 WYA Walcha, NSW (Low altitude 5.3°. Moonlight and twilight interference. Faint tail visible. Coma enhances slightly in Swan Band filter while the tail disappears. Stellar pseudo-nucleus visible and yellowish in colour when viewed through my 10"dob at 40x. Small hazy outer coma. No extinction corrections required.) 2024 9 19.77 M 4.2 TK 7.0B 15 2.7 7/ 25m 244 WYA Uralla, NSW (Low altitude 5.1°. Moonlight and twilight interference. Faint tail visible. Stellar pseudo-nucleus visible, small hazy outer coma. No extinction corrections required.) 2024 9 18.78 M 4.2 TK 7.0B 15 2.1 6 25m 244 WYA Uralla, NSW (Low altitude 6.7°. Moonlight and twilight interference. Faint tail visible. Highly condensed coma with a little diffuse outer coma. No extinction corrections required.) 2024 9 17.78 M 4.5 TK 7.0B 15 3.0 6 18m 245 WYA Walcha, NSW (Low altitude 5.2°. Moonlight and twilight interference. Faint tail visible. Stellar central condensation. No extinction corrections applied.) 2024 8 6.37 M 8.5 TK 25.0L 40 1.7 6 30m 99 WYA Walcha, NSW (Zodiacal light interference. Tail visible. Altitude 10.3°.) 2024 8 6.36 M 8.6 TK 7.0B 15 3.1 6 26m 99 WYA Walcha, NSW (Zodiacal light interference. Faint tail visible. Altitude 12.4°.) 2024 8 3.34 M 8.8 TK 7.0B 15 3 5/ 17m 98 WYA Walcha, NSW (Zodiacal light interference. Diffuse coma, opaque centre. Faint tail visible. Altitude 16.9°.) 2024 8 1.36 M 8.9 TK 7.0B 15 2.5 5/ WYA Walcha, NSW (Diffuse and opaque coma, stellar pseudo-nucleus visible in good seeting. Altitude 18.6°.) 2024 8 1.35 M 8.9 TK 25.0L 40 2.4 6 19m 104 WYA Walcha, NSW (Coma dims slightly in Swan Band filter, pseudo-nucleus disappears but coma slightly enhanced.) 2024 7 31.36 M 8.9 TK 7.0B 15 3 5 WYA Walcha, NSW (Diffuse, opaque coma. Brighter centre. Clouds ended observation. Altitude 17.8°.) 2024 7 30.37 M 8.7 TK 7.0B 15 3 5/ 11m 102 WYA Walcha, NSW (Diffuse coma, faint stellar pseudo-nucleus visible. Faint tail visible.) 2024 7 23.35 M 9.5 TK 25.0L 40 1.9 6 15m 98 WYA Walcha, NSW (Dust tail visible, slightly curved to the North and appears opaque for the first 6’ from the coma and fading gradually. Coma dims slightly in Swan Band filter.) 2024 7 23.35 M 9.3 TK 7.0B 15 2.5 5/ WYA Walcha, NSW (Diffuse, faint stellar pseudo-nucleus visible sometimes.) 2024 7 22.36 M 9.1 TK 7.0B 15 2.1 3 WYA Walcha, NSW (Moonlight. Very difficult but visible in good seeing periods.) 2024 7 10.35 M 9.6 TK 25.0L 40 2.5 6 18m 104 WYA Walcha, NSW (Moonlight.) 2024 7 9.37 M 9.7 TK 7.0B 15 2.1 4/ WYA Walcha, NSW (Moonlight. Diffuse coma.) 2024 7 1.92 S 9.9 TK 20.3T 77 1.7 6/ 0.15 100 GON Alto del Castro - Aralla, León (Astronomical twilight. Altitude 22°.) 2024 6 28.37 M 9.9 TK 7.0B 15 2.6 5/ 11m 99 WYA Walcha, NSW (Faint tail just visible. Coma transparent with small stellar pseudo-nucleus sometimes visible.) 2024 6 28.36 S 9.4 AA 10.0B 25 0.13 100 SEA Cowra, NSW (Appeared fainter through Swan band filter.) 2024 6 26.37 M 9.8 AQ 7.0B 15 1.8 6 WYA Walcha, NSW (Coma diffuse. Small coma with stellar pseudo-nucleus visible.) 2024 6 26.36 M 10.0 AQ 25.0L 40 1.7 6 11.5m 100 WYA Walcha, NSW (Faint slightly curved [convex side to South] dust tail visible. Galaxy NGC 3640 in the field 19.2’ away.) 2024 6 24.91 S 10.3 TK 20.3T 77 1.5 6/ 0.15 110 GON Saelices de Mayorga, Valladolid (Astronomical twilight. Altitude 22°.) 2024 6 24.36 M 10.3 AQ 25.0L 40 2.3 6 14.5m 98 WYA Walcha, NSW (Faint slightly curved [convex side to South] dust tail visible.) 2024 6 21.34 M 10.6 AQ 25.0L 40 1.6 6 WYA Walcha, NSW (Moonlight. Diffuse coma with faint stellar pseudo-nucleus visible.) 2024 6 11.36 M 10.3 AQ 25.0L 40 1.4 6 10m 106 WYA Walcha, NSW (Dust tail visible.) 2024 6 10.94 B 10.8 TK 20.3T 77 1.0 7 0.15 110 GON Cueto Rosales, León 2024 6 10.36 S 9.3 AA 10.0B 25 SEA Cowra, NSW 2024 6 9.94 S 9.9 TK 22.0L 60 4 4/ GOI Araçatuba 2024 6 8.93 S 10.2 TK 20.0L 80 & 2 5 SCH Eerbeek (Grey night/twilight. Altitude Sun –13°. Altitude comet 9°.) 2024 6 3.35 M 10.6 AQ 25.0L 40 1.0 6 10m 110 WYA Walcha, NSW (Dust tail visible. Comet dims in Swan Band filter.) 2024 6 1.94 B 11.0 TK 20.3T 77 1.0 7 0.15 110 GON Cueto Rosales, León 2024 5 29.93 S 9.8 TK 20.0L 42 2 6 SCH Eerbeek (Grey nights. Altitude Sun – 15°, altitude comet 26°.) 2024 5 29.93 B 10.9 TK 20.3T 77 1.0 7 0.1 100 GON Santiago Millas, León 2024 5 29.37 M 10.7 AQ 40.0L 108 2.0 6 10m 100 WYA Walcha, NSW (Curved dust tail visible.) 2024 5 28.40 M 10.7 AQ 25.0L 40 1.3 6 5.3m 117 WYA Walcha, NSW (Stellar pseudo-nucleus visible.) 2024 5 26.35 M 10.6 AQ 25.0L 40 1.2 6 8m 102 WYA Walcha, NSW (Coma opaque with faint stellar pseudo-nucleus visible. Dims in Swan Band filter.) 2024 5 25.92 S 10.0 TK 20.0L 42 2 6 SCH Eerbeek (Grey nights. Altitude Sun –14°. Altitude comet 31°.) 2024 5 13.12 S 10.0 TK 22.0L 60 3 4/ GOI Araçatuba 2024 5 12.48 M 10.5 AQ 25.0L 40 1.3 6 10m 95 WYA Walcha, NSW (Slightly curved dust tail visible.) 2024 5 11.923 S 10.1 AQ 15.5L 36 2.5 2/ DIJ Burlage (In 30.5T at 139x, tail 3' long in p.a. 105 deg.) 2024 5 11.920 M 10.3 AQ 15.5L 36 1.7 6 BOU Burlage, Germany (Nice view in 30.5T at 139x, with slightly curved dusttail well visible, about 2.5' long in p.a. 100 deg.) 2024 5 8.91 S 9.8 TK 20.0L 42 2 6 SCH Eerbeek (Grey sky.) 2024 5 7.92 S 10.1 TK 20.0L 80 2 6 SCH Eerbeek (Grey sky.) 2024 5 7.48 M 10.8 AQ 40.0L 59 1.0 6 5.4m 100 WYA Walcha, NSW (Curved dust tail visible. Pseudo-nucleus enhances in Swan Band filter but overall coma dims. Nice view!) 2024 5 6.95 B 10.9 TK 20.3T 77 1.1 7 0.05 100 GON Santiago Millas, León 2024 5 5.48 M 10.5 AQ 25.0L 40 1.4 6 6.0m 103 WYA Walcha, NSW (Faint and short tapered dust tail visible, curved slightly to the North. Coma elongated West to East with stellar pseudo-nucleus at the Western end.) 2024 5 4.49 S 10.8 TJ 40.0L 36 2.3 7 YOS Kita-karuizawa, Gunma 2024 5 4.49 M 11.1 TJ 40.0L 75 1.0 7/ 4.2m 110 YOS Kita-karuizawa, Gunma 2024 5 3.52 S 10.5 TJ 40.0L 36 2.3 7 YOS Kita-karuizawa, Gunma 2024 5 3.52 M 10.8 TJ 40.0L 75 0.9 7/ 2.5m 100 YOS Kita-karuizawa, Gunma (Very strong and sharp condensation. It looks very well with a long tail.) 2024 5 3.45 M 10.5 AQ 25.0L 40 2.1 6 8.0m 115 WYA Walcha, NSW (Faint and short tapered tail visible. Stellar pseudo-nucleus, semi-opaque outer coma.) 2024 5 2.06 S 10.1 TK 22.0L 60 3 4 GOI Araçatuba 2024 5 1.52 M 10.4 AQ 25.0L 40 1.7 6 4.0m 97 WYA Walcha, NSW (Faint short tail visible.) 2024 4 29.42 M 10.7 AQ 25.0L 40 1.0 6 3.0m 96 WYA Walcha, NSW (Faint short tail visible. Opaque inner coma, white stellar pseudo-nucleus visible.) 2024 4 28.42 M 10.5 AQ 25.0L 40 1.6 6 3.2m 97 WYA Walcha, NSW (Faint short tail visible. Coma white in colour. Faint pseudo-nucleus visible. Coma dims in Swan Band filter.) 2024 4 26.39 M 11.0 AQ 25.0L 40 0.8 6 WYA Walcha, NSW (Moonlight. At 74x, faint short tail visible traced to 1.6’ in p.a. 87 deg. Transparent outer coma, coma white in colour. Faint pseudo-nucleus visible.) 2024 4 18.73 M 10.7 AQ 25.0L 40 1.5 6 4.0m 83 WYA Walcha, NSW (Faint tail. Coma small, stellar pseudo-nucleus visible.) 2024 4 17.04 S 10.3 TK 20.0L 42 2 7 SCH Eerbeek (Moonlight. Condensed coma.) 2024 4 11.46 M 10.8 AQ 25.0L 40 1.2 7 WYA Walcha, NSW (Coma centre stellar with thin fuzzy outer coma. At 74x, faint hint of tail traced to 1.5’ in p.a. 68 deg. approximately.) 2024 4 11.19 S 10.7 AU 22.0L 60 2.5 4 GOI Araçatuba 2024 4 10.44 M 11.0 AQ 40.0L 59 1.0 6 1.7m 61 Walcha, NSW (Faint tail. Coma white in colour and opaque, stellar pseudo-nucleus visible. Centre enhances in Swan Band filter.) 2024 4 8.90 B 10.6 TK 20.3T 77 1.2 7 GON Santas Martas, Léon 2024 4 7.48 M 11.1 AQ 40.0L 59 0.7 7 2.0m 63 WYA Walcha, NSW (Coma small, stellar pseudo-nucleus visible and enhances in Swan Band filter. Hint of faint tail. Coma white in colour.) 2024 3 9.165 S 12.1:AQ 25.4J 72 1 2 DIJ Burlage 2024 3 9.156 M 12.5 AQ 25.4J 72 &0.5 5 BOU Burlage, Germany 2024 3 5.52 M 12.6 AQ 40.0L 108 0.6 6/ WYA Walcha, NSW (No enhancement in Swan Band filter. Low altitude 12.0°. Stellar pseudo-nucleus visible, faint outer coma. Poor seeing.) 2024 1 21.71 M 13.9 AQ 40.0L 108 0.5 7/ WYA Walcha, NSW (No enhancement in Swan Band filter. Close to star but resolvable, m2 = 14.9 approximately.) 2024 1 18.68 M 13.9 AQ 40.0L 108 0.6 6 WYA Walcha, NSW (Stellar pseudo-nucleus visible, diffuse outer coma. Dims in Swan Band filter at 182x.) 2024 1 7.26 S 12.7 AQ 20.3T 133 0.8 6 GON Quintanilla de los Oteros, Léon (Nearby field stars checked in DSS. Slight moonlight interference [phase 0.21]. Limiting star magnitude near comet 14.1.)