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* * * * * C/2007 Q3 (Siding Spring) * * * * *
Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2010 6 4.01 S 12.3 TK 20.3T 100 1.2 5 GON Alto del Trichero - Soto y Amío, León (Elongated coma.) 2010 5 17.976 S 12.9 TA 31.0J 109 1.4 3 BOU Lauwersoog 2010 5 17.05 S 12.8 HN 20.3T 100 1.0 5 GON Cueto Rosales - Riello, León (Comparison stars taken from Henden photometry near Z UMi.) 2010 5 5.99 S 12.3 TK 20.3T 133 1.5 5 GON Pandorado, León 2010 5 5.906 S 12.7 TA 31.0J 109 1.0 3/ BOU Lauwersoog 2010 5 3.47 S 12.6 TA 40.0L 144 1.3 3 YOS Kita-karuizawa, Gunma 2010 5 2.49 S 12.4 TA 40.0L 144 1.3 4/ YOS Kita-karuizawa, Gunma 2010 5 1.48 S 12.4 TA 40.0L 144 1.4 4 YOS Kita-karuizawa, Gunma (Finally I could see it. It must be much fainter than its maximum. But it is still bright and easy to see. Many artificial satellites passed through the northern sky around this comet.) 2010 4 17.929 M 12.5 TA 31.0J 109 1.5 5 BOU Lauwersoog 2010 4 16.910 S 12.4 TA 31.0J 89 1.5 4/ BOU Lauwersoog 2010 4 14.922 S 12.5 TA 31.0J 89 1.5 4/ BOU Burlage, Germany 2010 4 14.917 S 12.4 TA 31.0J 89 1.7 3 DIJ Burlage 2010 4 12.88 M[11.8 TK 13.0L 108 NOV Konchezero 2010 4 10.916 S 12.4 TA 31.0J 89 1.8 4 BOU Burlage, Germany 2010 4 10.915 S 12.5 TA 31.0J 89 2.1 2 DIJ Burlage 2010 4 8.871 S 12.2 TA 31.0J 109 1.5 4/ BOU Sint Annen 2010 4 6.882 S 12.3 TA 31.0J 109 1.2 4 BOU Sint Annen 2010 4 4.86 S 11.3 TK 20.3T 100 1.3 5 0.1 270 GON Alto del Trichero, León 2010 4 3.93 M 11.6 TK 13.0L 65 4 NOV Spasskaya Guba 2010 4 3.93 M 11.6 TK 13.0L 65 KIR Spasskaya Guba 2010 3 17.97 S 11.9 TK 40.7L 58 2.0 5 0.2 260 BIV Blieux 2010 3 16.95 S 12.0 TK 40.7L 58 1.8 5 0.25 260 BIV Blieux 2010 3 15.99 S 12.0 TK 40.7L 58 1.5 6 0.2 255 BIV Blieux 2010 3 15.18 S 11.4 TK 20.3T 100 2.0 5 0.1 250 GON Aralla, León 2010 3 14.97 S 11.3 TK 40.7L 58 1.5 5 0.3 260 BIV Blieux 2010 3 10.13 S 11.3 TK 20.3T 77 2.5 5 0.2 250 GON Alto del Trichero, León 2010 3 6.892 S 10.9 TK 15.5L 50 2 3 DIJ Burlage 2010 3 4.901 S 11.0 TK 15.5L 50 2.5 3 DIJ Burlage 2010 3 1.82 M 11.0 TK 20.3T 77 1.2 S6 GON Sierra de Fario, Sariego, Asturias (Estimate made before moonrise, at low altitude: 11 deg.) 2010 2 20.19 M 11.1 TK 20.3T 77 2.5 S6 0.2 260 GON Armada - Lena, Asturias 2010 2 17.90 M 11.0 TK 13.0L 65 3.5 3 NOV Konchezero 2010 2 16.93 M 11.2 TK 13.0L 65 3.5 3 NOV Konchezero 2010 2 13.95 S 11.1 TK 20.3T 67 2.5 4 0.1 280 BIV Pico Veleta, Spain 2010 2 10.06 M 11.3 TK 20.3T 77 1.7 S6 0.2 270 GON Caldas de Luna, León 2010 2 7.93 V 12.1 TK 10.9R 2.0 0.05 270 QVA Borrevannet, Horten 2010 2 3.922 S 10.8 TK 15.5L 50 1.8 3/ DIJ Burlage 2010 1 13.10 S 9.5 TK 20.3T 77 3 S4 0.2 270 GON Grandota - Oviedo, Asturias 2010 1 13.042 S 10.2 TK 7.0R 20 2 5/ DIJ Burlage 2009 12 27.198 S 10.6 AC 25.0L 53 0.6 7 LOO Genk 2009 12 26.198 S 10.5 AC 25.0L 53 0.6 7 LOO Genk 2009 12 24.076 S 10.6 TK 8.0B 15 3 3/ DIJ Burlage 2009 12 20.18 S 9.6 TK 10.2M 65 3.5 S5/ 0.1 270 GON La Cortina - Lena, Asturias (In evolution after the recent little outburst. Near-stellar central condensation, m2=11.8 [Tycho-2]. Mountain location, very clear sky.) 2009 12 12.17 S 9.9 TK 20.3T 77 4 5 0.2 270 GON Alto del Castro, León 2009 11 24.25 V 11.9 TK 10.9R 2.8 >0.1 270 QVA Borrevannet, Horten 2009 11 24.18 S 9.4 TK 20.3T 77 4 4/ 0.2 270 GON Alto del Castro, León 2009 11 20.174 S 11.1 TA 31.0J 72 2 3 BOU Sint Annen 2009 11 18.17 S 9.2 TK 20.3T 77 5 3/ 0.2 260 GON Alto del Castro, León 2009 10 26.22 S 9.5 TK 20.3T 77 4 3/ 0.2 250 GON Alto del Castro, León (Zodiacal light.) 2009 10 17.22 S 10.8 TK 40.0L 150 2.0 5 0.1 250 BIV La Palma Observatory, Canary Islands, Spain 2009 10 16.20 S 8.7 TK 20.3T 77 5 3 GON Alto del Castro, León (Zodiacal light. Altitude: 15 deg.) 2009 9 29.21 S 8.7 TK 20.3T 100 5 2/ GON Alto del Castro, León (Astronomical twilight. Altitude: 10 deg.) 2009 4 17.42 S 11.4 GA 25.4L 71 1.5 SEA Cowra, NSW 2009 4 16.47 S 11.1:GA 25.4L 114 SEA Cowra, NSW (Magnitude somewhat uncertain due to close proximity of star.) 2009 3 26.87 S 9.2 TK 20.3T 77 6 2 GON Alto del Castro - Aralla, León (Altitude: 6 deg.) 2009 3 21.87 S 9.8 TK 20.3T 77 4 3/ GON Alto del Castro - Aralla, León (Altitude: 6 deg.) 2009 3 20.85 S 10.2 TK 20.3T 77 3 4 GON Alto del Castro - Aralla, León (Altitude: 10 deg.) 2009 3 13.83 S 10.6 TK 20.3T 100 3 4 GON Pandorado, León (Altitude: 10 deg.)