* * * * * C/2008 J1 (Boattini) * * * * *

Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2008 11 22.49 S 14.1 HS 40.0L 257 0.9 1 YOS Kita-karuizawa, Gunma (It became very faint, but unexpectedly still visible.) 2008 11 1.48 S 13.8 HS 40.0L 144 1.0 2 YOS Kita-karuizawa, Gunma (Faint, but evidently visible. It is located very close to Polaris. Difficult to observe due to the strong light of Polaris. So I shifted the telescope and moved Polaris out of the field of view when estimating the brightness.) 2008 10 29.757 S 12.5 TA 31.0J 89 1.5 1 BOU Lauwersoog 2008 10 24.940 S 12.7 TA 31.0J 89 1.5 0/ DIJ Sint Annen 2008 10 24.935 S 12.5 TA 31.0J 89 1.6 1 BOU Sint Annen 2008 10 21.851 S 12.6 TA 31.0J 89 1.4 0/ DIJ Sint Annen 2008 10 21.829 S 12.3 TA 31.0J 89 1.8 1/ BOU Sint Annen 2008 10 4.44 S 12.1 TA 40.0L 144 1.5 3 YOS Kita-karuizawa, Gunma (It became small, but still bright and visible visually. It looks diffuse, similar to in August and September.) 2008 9 29.17 S 11.0 TK 20.3T 77 4 2 GON Alto del Castro - Aralla, León 2008 9 27.849 S 11.3 TA 31.0J 58 2.8 0/ DIJ Lauwersoog 2008 9 27.847 S 11.4 TA 31.0J 58 2.6 1 BOU Lauwersoog 2008 9 25.866 S 11.3 TA 31.0J 58 2.0 0/ DIJ Lauwersoog 2008 9 25.863 S 11.4 TA 31.0J 58 3 1/ BOU Lauwersoog 2008 9 24.94 S 10.6 TK 20.3T 77 4 3 GON Aralla, León 2008 9 9.69 S 11.4 TJ 40.0L 75 2.0 2/ YOS Kita-karuizawa, Gunma (Still bright and easy to see. It looks similar to the view in August, probably due to the clear sky.) 2008 9 6.97 S 10.2 TK 20.3T 77 5 3 GON Alto del Trichero - Soto y Amío, León 2008 9 6.935 S 11.2 TA 31.0J 72 2.2 2 BOU Sint Annen 2008 9 6.930 S 11.3 TA 31.0J 72 1.8 4 DIJ Sint Annen 2008 9 3.917 S 11.5 TA 31.0J 72 1.8 2 DIJ Sint Annen 2008 9 3.914 S 11.1 TA 31.0J 72 2.5 2 BOU Sint Annen 2008 9 1.85 S 10.8 TK 40.7L 58 4.0 2 BIV Valdrôme 2008 8 30.922 S 11.0 TA 31.0J 72 1.5 2/ DIJ Sint Annen 2008 8 30.918 S 11.0 TA 31.0J 72 2.5 3 BOU Sint Annen 2008 8 29.09 S 11.2 TK 40.7L 58 4.0 2 BIV Valdrôme 2008 8 28.12 S 10.2 TK 20.3T 77 5 3 GON Alto del Castro - Aralla, León (Comet close to star of mag. 9.9 [Tycho-2].) 2008 8 24.88 S 10.7 TK 13.0L 65 2.9 2/ NOV Konchezero 2008 8 23.93 S 11.1 TK 40.7L 58 4.5 3 BIV Valdrôme 2008 8 23.93 S 9.8 TK 20.3T 77 6 3 GON Alto del Castro - Aralla, León 2008 8 23.88 S 11.2 TK 13.0L 65 3.3 2 NOV Konchezero 2008 8 13.10 S 9.7 TK 10.0B 25 5 3 GON Tábara, Zamora 2008 8 13.012 S 10.6 TA 15.6L 45 2.5 2/ DIJ Garmerwolde 2008 8 13.009 S 10.6 TA 15.6L 45 3 2 BOU Garmerwolde 2008 8 10.99 S 10.5 TK 25.6L 42 3.0 2 BIV Rambouillet 2008 8 10.920 S 10.4 TA 31.0J 58 3 2/ BOU Sint Annen 2008 8 9.01 S 9.5 TK 10.0B 25 6 3 GON Alto del Castro - Aralla, León 2008 8 8.915 S 10.8 TA 31.0J 58 4.2 2/ DIJ Sint Annen 2008 8 8.912 S 10.5 TA 31.0J 58 3 3/ BOU Sint Annen 2008 8 6.00 S 9.8 TK 20.3T 77 4 3 GON Alto del Castro - Aralla, León 2008 8 5.92 S 10.9 TK 25.6L 42 3.0 4 BIV Rambouillet 2008 8 5.02 S 10.3 TK 20.3T 77 4 3 GON Alto del Castro - Aralla, León 2008 8 3.50 S 10.2 TJ 40.0L 75 3.1 3/ YOS Kita-karuizawa, Gunma (Diffuse, but bright and large. Easy to see.) 2008 8 2.65 S 10.7 TJ 40.0L 75 3.0 3/ YOS Kita-karuizawa, Gunma 2008 8 1.96 S 10.2 TK 20.3T 77 4 3 GON Alto del Castro - Aralla, León 2008 7 26.96 S 10.3 TK 20.3T 77 5 3 GON Alto del Castro - Aralla, León 2008 7 15.08 S 10.2 TK 10.0B 25 4 3 GON Alto del Castro - Aralla, León 2008 7 15.021 S 11.0 AC 25.0L 53 2 2 LOO Genk 2008 7 7.98 S 9.8 TK 10.0B 25 5 3 GON Alto del Castro - Aralla, León 2008 7 7.97 S 10.2 TK 20.3T 77 4.5 3 GON Alto del Castro - Aralla, León 2008 6 27.98 S 10.3 TK 20.3T 77 4.5 3 GON Alto del Castro - Aralla, León 2008 6 10.992 S 11.4 TA 31.0J 72 1.2 3 DIJ Garmerwolde 2008 6 10.988 S 11.6 TA 31.0J 72 1.8 2/ BOU Garmerwolde 2008 6 7.08 S 11.1 TK 20.3T 100 2.8 3 GON Outeiro - Castro do Rei, Lugo 2008 5 12.11 S 12.3 TK 20.3T 100 2.5 3 GON Puerto de las Señales, León (Faint outer coma is difficult to observe with higher magnifications.) 2008 5 8.036 S 12.6 TA 31.0J 109 0.6 2/ DIJ Lauwersoog 2008 5 8.032 S 12.8 TA 31.0J 109 0.9 3/ BOU Lauwersoog 2008 5 5.056 S 12.8 TA 31.0J 89 1.1 4 BOU Lauwersoog 2008 5 5.054 S 12.7 TA 31.0J 89 0.8 4 DIJ Lauwersoog