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* * * * * 71P/Clark * * * * *
Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2006 9 27.44 S 12.6 AU 40.0L 144 0.9 3 YOS Kita-karuizawa, Gunma (I could not see it at the highlight due to the bad weather or low location. But I could see it again before it went away. Unexpectedly, the comet was still visible visually. My estimation is 12.6 mag, but I felt it much fainter. The magnitude becomes 13.7 mag if I use the GSC as reference.) 2006 9 24.46 S 13.4 28.0T 133 2 2 MAT Blinman, SA 2006 8 27.92 S 11.8 TK 20.3T 100 1.5 3 GON Cueto Rosales - Riello, León (Altitude: 7 deg.) 2006 8 21.40 S 11.6 GA 10.0B 25 SEA Cowra, NSW 2006 8 20.42 S 11.6 GA 10.0B 25 SEA Cowra, NSW 2006 8 19.46 S 11.6 GA 25.4L 71 SEA Cowra, NSW (Glimpsed in 25x100B at approx mag. 11.6, but close to star.) 2006 7 20.60 10.8 20.0L 62 3 5 MAT Linville, Queensland 2006 7 20.46 M 10.9 GA 25.4L 71 2.0 4 SEA Cowra, NSW 2006 7 7.05 S 10.3 TK 20.3T 77 2.0 5 GON Alto del Castro - Aralla, León (Altitude: 6 deg.) 2006 6 21.42 S 10.7 GA 25.4L 71 SEA Cowra, NSW 2006 6 20.43 S 11.0 GA 25.4L 71 3 SEA Cowra, NSW 2006 6 5.12 S 10.9 TK 20.3T 100 1.7 4 GON Alto del Castro - Aralla, León (Mountain location, very clear sky.) 2006 5 26.10 S 11.7 TK 20.3T 100 1.2 4 GON Alto del Castro - Aralla, León 2006 5 4.72 S 12.4 AU 40.0L 144 1.3 4 YOS Gunma, Japan (It looked unexpectedly large.) 2006 5 4.05 S 12.8 AC 41.0L 72 1.2 3 RES Szamotuly-Galowo 2006 5 3.74 S 12.6 AU 40.0L 144 0.8 4 YOS Gunma, Japan 2006 5 2.76 S 12.7 HS 40.0L 144 0.7 3 YOS Gunma, Japan 2006 4 30.75 S 12.2 AU 40.0L 144 0.7 4 YOS Gunma, Japan (Unexpectedly bright already. Somewhat low and not easy to see. It looked small.)