* * * * * C/2025 T1 (ATLAS) * * * * *

Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2025 12 24.718 S 10.3 AQ 25.4J 58 2.1 4 DIJ Burlage (Moonlight.) 2025 12 24.716 S 10.4 AQ 25.4J 58 1.8 3/ BOU Burlage, Germany (Moonlight.) 2025 12 15.778 S 10.0 TA 25.4J 58 2.3 3 BOU Burlage, Germany (Altitude 18.7°.) 2025 12 15.776 S 10.1 AQ 25.4J 58 2 3 DIJ Burlage 2025 12 13.75 S 9.4 TK 20.0L 42 & 2 2 SCH Eerbeek 2025 12 13.724 M 9.8 TA 25.4J 58 2.3 4/ BOU Westerwijtwerd 2025 12 13.722 S 9.9 AQ 15.5L 62 2.1 4 DIJ Burlage 2025 12 11.743 M 9.7 TA 25.4J 58 2.5 4 BOU Westerwijtwerd 2025 11 30.773 S 9.2 TK 15.5L 50 2.5 3/ DIJ Burlage (Moonlight.) 2025 11 24.772 M 9.1 TA 25.4J 58 3.5 5 BOU Westerwijtwerd 2025 11 22.81 S 8.8 TK 20.0L 42 6 6 SCH Eerbeek 2025 11 22.765 S 9.0 TK 15.5L 29 3 5 DIJ Burlage 2025 11 21.815 M 9.1 TA 25.4J 58 3.5 4/ BOU Westerwijtwerd (Observed only 5' from bright Mira variable W Lyr.) 2025 11 21.73 S 9.0 TK 20.0L 42 & 5 4 SCH Eerbeek 2025 11 21.720 S 9.3 TK 15.5L 29 3.9 6 DIJ Burlage 2025 11 17.788 S 9.1 TK 15.5L 29 3.8 5 DIJ Burlage 2025 11 17.772 M 9.0 TA 25.4J 58 4 5 BOU Westerwijtwerd 2025 11 16.719 S 9.1 TK 15.5L 29 4 4/ DIJ Burlage 2025 11 12.85 S 9.9 TK 35.6T 98 2 2 SCH Bussloo (Some cirrus.) 2025 11 12.783 S 9.5 TK 15.5L 29 5 4/ DIJ Burlage 2025 11 9.761 M 9.6 TA 25.4J 58 4 4 BOU Westerwijtwerd 2025 11 2.42 S 10.4 TJ 40.0L 144 2.0 2 YOS Mt. Hanadate, Ibaraki (Diffuse and weakly condensed.) 2025 11 1.026 S 10.6 AQ 25.4J 58 3 3/ BOU Westerwijtwerd 2025 10 28.927 S 11.8 AQ 15.5L 50 2.5 2/ DIJ Burlage 2025 10 27.928 S 11.5 AQ 25.4J 72 1.5 3/ BOU Westerwijtwerd 2025 10 27.18 S 10.1 TK 20.3T 77 7 2/ GON Alto de la Camperona, León (Wide and very diffuse outer coma.) 2025 10 26.85 S 10.2 TK 20.3T 77 7 2/ GON Alto de la Camperona, León