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* * * * * P/2023 E1 (ATLAS) * * * * *
Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2023 10 3.41 M 12.3 AQ 40.0L 59 4.3 3/ WYA Walcha, NSW (Diffuse. Close to 12th mag star. Slight enhancement in Swan Band filter.) 2023 9 24.00 S 10.2 TK 20.3T 77 10 2 GON Alto del Castro, León 2023 9 18.68 M 11.3 AQ 40.0L 59 6.8 3/ WYA Walcha, NSW (Large extended coma.) 2023 9 16.95 S 11.1 AU 22.0L 160 3 2/ GOI Araçatuba 2023 9 16.47 S 10.5 TK 40.0L 59 6 3 WYA Walcha, NSW (Faint star in coma, large extended coma.) 2023 9 13.940 S 11.5 AQ 15.5L 50 4 0/ DIJ Burlage 2023 9 13.85 S 9.6 TK 20.3T 100 10 2/ GON Villalan de Campos, Valladolid 2023 9 9.45 S 10.2 TK 40.0L 59 8.6 3/ WYA Walcha, NSW (Large and diffuse extended coma, enhances in Swan Band filter.) 2023 9 7.856 S 10.4 AQ 25.4J 58 4 2 BOU Westerwijtwerd 2023 9 6.870 S 10.3 TK 15.5L 50 4 3 DIJ Burlage 2023 9 6.842 S 10.5 AQ 25.4J 58 4 1/ BOU Westerwijtwerd 2023 8 29.074 S 9.6 TA 25.4J 47 5.5 1/ BOU Westerwijtwerd 2023 8 28.081 S 9.6 TA 25.4J 47 5 2/ BOU Westerwijtwerd 2023 8 27.08 S 8.8 TK 7.0B 15 8 3 GON Villacintor, León 2023 8 26.986 S 9.7 TK 15.5L 50 6.2 2/ DIJ Burlage 2023 8 25.67 S 9.7 TK 40.0L 59 5.6 3 WYA Walcha, NSW (No enhancement in Swan Band filter. Diffuse and extended coma.) 2023 8 23.040 S 9.5 TK 15.5L 50 7 4 DIJ Burlage 2023 8 22.883 S 9.4 TA 25.4J 47 5.5 2/ BOU Sint Annen 2023 8 22.13 S 10.2 TK 22.0L 60 4 2/ GOI Araçatuba 2023 8 21.90 S 8.6 TK 8.0B 20 8 3 GON Cueto Rosales, León 2023 8 21.89 S 8.7 TK 7.0B 15 8 3 GON Cueto Rosales, León 2023 8 21.89 S 9.6 TK 20.0L 42 & 5 1 SCH Eerbeek (Big/diffuse comet.) 2023 8 21.880 S 9.5 TK 15.5L 50 5.1 4 DIJ Burlage 2023 8 21.71 S 8.9 TK 25.0L 40 6.5 3/ WYA Walcha, NSW (Diffuse, extended coma. Low altitude 12.3°.) 2023 8 20.886 S 9.4 TA 25.4J 47 5.5 3 BOU Westerwijtwerd 2023 8 19.896 S 9.7 TK 15.5L 50 5.5 3 DIJ Burlage 2023 8 18.94 S 9.6 TK 20.0L 42 & 6 0 SCH Eerbeek (Very diffuse comet in star-rich field.) 2023 8 17.12 S 9.5 TK 22.0L 60 3 3 GOI Araçatuba 2023 8 15.911 S 9.3 TK 15.5L 29 8 2 DIJ Burlage 2023 8 15.901 S 9.2 TA 25.4J 47 6.5 3/ BOU Westerwijtwerd 2023 8 14.04 S 9.5 TK 20.0L 42 & 5 2 SCH Eerbeek (Comet in star-rich field.) 2023 8 13.948 S 9.3 TK 15.5L 29 7.5 2/ DIJ Burlage 2023 8 12.919 S 9.4 TK 15.5L 29 6 3 DIJ Burlage 2023 8 10.96 S 9.1 TK 20.0L 42 & 7 2 SCH Eerbeek 2023 8 9.90 S 9.4 TK 20.0L 38 & 7 3 SCH Bussloo 2023 8 8.930 S 9.1 TK 15.5L 29 6.7 3 DIJ Burlage 2023 8 8.891 S 9.0 TA 25.4J 47 7 3 BOU Westerwijtwerd 2023 8 7.92 S 8.8 TK 7.0B 15 8 3 GON Alto del Castro, León 2023 8 7.881 S 9.2 TK 15.5L 29 6.5 4/ DIJ Burlage 2023 8 6.924 S 9.1 TK 15.5L 29 7.2 4 DIJ Burlage 2023 7 30.033 S 8.8 TK 15.5L 29 5.5 5/ DIJ Burlage 2023 7 29.998 M 8.8 TA 25.4J 47 6 4 BOU Westerwijtwerd 2023 7 29.99 S 9.1 TK 20.0L 42 & 5 4 SCH Eerbeek 2023 7 29.906 S 9.3 AC 32.0L 53 2 2 LOO Genk (Moonlight.) 2023 7 26.937 M 8.7 TA 25.4J 47 7 3/ BOU Westerwijtwerd (Stars of magn. 11.3 and 11.8 [AQ] in coma.) 2023 7 26.923 S 8.8 TK 15.5L 29 7 5/ DIJ Burlage 2023 7 24.951 M 8.6 TA 25.4J 47 7 4 BOU Westerwijtwerd 2023 7 24.000 S 8.9 TK 15.5L 29 6 5 DIJ Burlage 2023 7 22.60 S 9.0 TJ 40.0L 36 5 2 YOS Mt. Tsukuba, Ibaraki (Diffuse and large.) 2023 7 21.94 S 8.7 TK 7.0B 15 11 3 GON Santiago Millas, León 2023 7 21.931 S 8.7 TK 15.5L 29 7 4/ DIJ Burlage 2023 7 21.896 S 9.7 AC 32.0L 53 3 2 LOO Genk 2023 7 18.93 S 8.7 TK 7.0B 15 11 3 GON Alto del Castro, León 2023 7 18.92 S 8.5 TK 5.0B 10 8 4 GON Alto del Castro, León 2023 7 18.840 S 9.5 AC 32.0L 53 4 3 LOO Genk 2023 7 18.062 S 9.3 AC 32.0L 53 6 5 LOO Genk 2023 7 17.975 M 8.8 TA 25.4J 47 6.5 4 BOU Westerwijtwerd (Twilight with Sun at -15.5 deg.) 2023 7 17.97 S 9.0 TK 20.0L 42 5 4 SCH Eerbeek (Cirrusclouds.) 2023 7 17.948 S 8.8 TK 8.0B 15 6.6 4 DIJ Burlage 2023 7 17.926 S 8.9 TK 15.5L 29 6 4 DIJ Burlage 2023 7 17.72 S 8.9 TJ 40.0L 36 4.4 3 YOS Kita-karuizawa, Gunma 2023 7 16.70 S 9.3 TJ 40.0L 36 5 4 YOS Kita-karuizawa, Gunma (Bright and easy to see. Near by Polaris and observable all night.) 2023 7 12.99 S 8.9 TK 20.0L 42 6 3 SCH Eerbeek 2023 7 12.990 S 9.0 TK 15.5L 29 6 4 DIJ Burlage 2023 7 10.93 S 8.8 TK 7.0B 15 11 3 GON Alto del Castro, León 2023 7 10.92 S 8.6 TK 5.0B 10 8 3/ GON Alto del Castro, León 2023 7 8.947 S 9.2 TA 25.4J 47 6.5 3/ BOU Westerwijtwerd (Twilight with Sun at -13.4 deg.) 2023 7 7.958 S 9.8 TK 15.5L 29 3.0 3 DIJ Burlage 2023 7 7.956 M 9.3 TA 25.4J 47 4.5 4 BOU Westerwijtwerd (Moon 2 deg. over eastern horizon. Twilight with Sun at -13.6 deg.) 2023 7 7.95 S 9.2 TK 20.0L 38 & 6 3 SCH Bussloo (Altitude Sun -15 deg.) 2023 7 6.98 S 9.2 TK 20.0L 42 & 4 3 SCH Eerbeek (Moonlight. Altitude Sun -15 deg.) 2023 6 27.001 S 10.2 AQ 15.5L 42 4.3 2 DIJ Burlage 2023 6 26.980 S 9.8 TK 25.4J 47 4 3/ BOU Westerwijtwerd (Easily visible, becoming more condensed. Twilight with Sun at -13.3 deg.) 2023 6 24.977 S 10.5 AQ 15.5L 42 2.6 2 DIJ Burlage 2023 6 15.979 S 10.4 AQ 15.5L 50 3.5 2 DIJ Burlage 2023 6 14.973 S 10.3 AQ 25.4J 47 5 2 BOU Westerwijtwerd (Faint, very diffuse object. Twilight with Sun at -13.4 deg.) 2023 6 13.977 S 10.6 AQ 15.5L 42 2.5 1/ DIJ Burlage 2023 6 13.94 S 9.7 TK 7.0B 15 9 3 GON Alto del Trichero, León 2023 6 13.92 S 9.9 TK 20.3T 77 7 2/ GON Alto del Trichero, León 2023 6 12.980 S 10.6 AQ 25.4J 58 4.5 1/ BOU Westerwijtwerd (Faint, very diffuse object. Twilight with Sun at -13.5 deg.) 2023 6 10.99 S 10.5:TK 20.0L 80 & 3 3 SCH Eerbeek (Difficult, only with averted vision. Grey sky [altitude Sun -15 deg.]) 2023 6 10.985 S 10.7 AQ 15.5L 50 2.2 1 DIJ Burlage 2023 6 8.996 S 11.1 AQ 15.5L 42 2.7 1 DIJ Burlage 2023 6 8.974 S 10.9 AQ 25.4J 58 4.5 1 BOU Westerwijtwerd (Faint, very diffuse object. Twilight with Sun at -13.8 deg.) 2023 5 25.037 S 11.4 AQ 15.5L 50 3 2 DIJ Burlage 2023 5 19.967 S 11.4 AQ 25.4J 58 3.5 1 BOU Westerwijtwerd 2023 5 18.009 S 11.3 AQ 15.5L 50 3.1 1/ DIJ Burlage 2023 5 12.952 S 11.7 AQ 25.4J 58 3 1 BOU Westerwijtwerd 2023 5 12.94 S 10.8 TK 20.3T 77 7 1/ GON Santiago Millas, León