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COMET C/1995 O1 (HALE-BOPP)
Total-visual-magnitude, coma-diameter (and tail-length, from 2/97 onwards; in case of two tails, first is ion and second is dust) estimates:
26.86, -0.6*, 27', 15 and 14 deg (B. H. Granslo, Aarnes, Norway, naked eye);
26.85, -0.7*, --, 16 and 11 deg (O. Skilbrei, Hoenefoss, Norway, naked eye);
26.85, -1.0*, --, -- (A. Pereira, Cabo da Roca, Portugal, reversed 9x34 binoculars);
26.85, -0.4*, --, -- (C. Vitorino, Cabo da Roca, Portugal, 1x35 monocular);
26.85, -1.3*, --, 10 and 9 deg (A. Pereira, Cabo da Roca, Portugal, naked eye);
26.85, 0.0*, --, 12 and 10 deg (C. Vitorino, Cabo da Roca, Portugal, naked eye);
26.85, -1.1, 20', 14 and 12 deg (J. J. Gonzalez, Asturias, Spain, naked eye);
26.85, -1.1*, 25', 2 and 9 deg (P. Candy, Cimini Mountains, Italy, naked eye);
26.83, -0.8, 15', 10 and 5 deg (J. Carvajal, Madrid, Spain, naked eye);
26.82, -1.0, 30', 4 and 18 deg (J. M. Trigo, Benicassim, Castellon, Spain, naked eye);
26.81, -1.2*, 20', 8 deg (K. Cernis, Zirmunai, near Vilnius, Lithuania, naked eye);
26.81, -0.7*, 25', 7 deg (M. L. Paradowski, Lublin, Poland, naked eye);
26.12, -1.0*, 25', -- and 6 deg (P. Candy, Viterbo, Italy, naked eye);
26.12, -0.7, --, -- (R. Keen, Mt. Thorodin, CO, reversed 3x30 binoculars);
26.09, -0.5*, --, about 4 deg (B. Adams, Des Moines, IA, naked eye);
25.84, -1.1, 20', 8 and 10 deg (J. J. Gonzalez, Asturias, Spain, naked eye);
25.80, -0.8*, about 20', about 5 deg (R. Palcic, Kamnik, Slovenia, naked eye);
25.79, -1.2*, --, 15 deg (K. Cernis, Zirmunai, near Vilnius, Lithuania, naked eye);
25.77, -0.6*, --, about 9 deg (T. Tanti, Naxxar, Malta, naked eye);
25.03, -0.3*, --, 4 deg (J. Bortle, Stormville, NY, naked eye, strong moonlight);
25.00, -0.6*, --, about 4 deg (D. W. E. Green, Cambridge, MA, naked eye);
24.82, -0.9, 25', 5 and 10 deg (J. M. Trigo, Benicassim, Castellon, Spain, naked eye);
24.38, -0.6*, --, about 4 deg (D. W. E. Green, Middlesex County, MA, naked eye);
24.38, +0.1, -- and 8.5 deg (J. Bortle, Stormville, NY, naked eye, strong moonlight);
24.18, -0.9, --, 12 deg (M. V. Zanotta, Laino, Italy, naked eye; during total lunar eclipse);
24.12, -0.6*, --, -- (R. Keen, Mt. Thorodin, CO, reversed 3x30 binoculars);
24.03, -0.3, --, 4 deg (J. Bortle, Stormville, NY, naked eye, strong moonlight);
24.02, -0.6*, --, about 2.5 deg (D. W. E. Green, Cambridge, MA, naked eye);
23.83, -0.6*, --, -- and 3 deg (D. Dvorakova, Brno, Czech Republic, 1x50 monocular);
23.78, -0.7*, 30', -- and 8 deg (K. Hornoch, Lelekovice, Czech Republic, 1x50 monocular);
23.77, -0.7*, 25', 11 and 7 deg (V. Znojil, Brno, Czech R., naked eye);
23.38, -0.8*, --, 5 deg (D. W. E. Green, Middlesex County, MA, naked eye);
23.02, -0.2, --, 3 deg (J. Bortle, Stormville, NY, naked eye, strong moonlight);
24.04, -0.8*, 20', 6 deg (P. J. Creed, Canal Fulton, OH, naked eye);
23.00, -0.7*, 15', 5 and 5 deg (B. H. Granslo, Fjellhamar, Norway, naked eye);
22.88, -0.6*, --, 7 and 8 deg (O. Skilbrei, Hoenefoss, Norway, naked eye);
22.82, -0.7*, 30', -- and 6 deg (V. Znojil, Brno, Czech R., naked eye);
22.81, -1.1*, 25', 4 and 7 deg (P. Candy, Cimini Mountains, Italy, naked eye);
22.80, -0.8, --, 10 deg (M. V. Zanotta, Laino, Italy, naked eye);
22.79, -0.7*, 12', 7 deg (G. Glitscher, Darmstadt, Germany, naked eye);
22.78, -0.5*, --, 8 deg (H. Luethen, Altona, Germany, naked eye);
22.21, -0.6, 20', 7 deg (J.J. Gonzalez, Asturias, Spain, naked eye);
22.20, -0.7*, 14', 9 deg (C. E. Spratt, Victoria, BC, naked eye);
22.16, -0.5*, 15', 15 deg (G. Glitscher, Darmstadt, Germany, naked eye);
22.14, -0.7*, --, 11 deg (R.J. Bouma, Groningen, The Netherlands, naked eye);
22.08, -0.8, --, about 2 and 4.5 deg (B. Wilson, Houston, Texas, naked eye);
21.84, -0.6*, --, -- (R.J. Bouma, Groningen, The Netherlands, naked eye);
21.84, -0.3, 15', 5.5 deg (A. Diepvens, Balen, Belgium, naked eye);
21.82, -0.5*, --, 8 deg (H. Luethen, Altona, Germany, naked eye);
21.80, -1.0*, 25', 5 and 8 deg (P. Candy, Cimini Mountains, Italy, naked eye);
21.80, -0.7*, 15', 4 deg (G. Glitscher, Darmstadt, Germany, naked eye);
21.80, -0.4*, 15', 6 and 6 deg (B. H. Granslo, Blindern, Oslo, Norway, naked eye);
21.80, -0.7, --, 10 deg (M. V. Zanotta, Milan, Italy, naked eye);
21.77, -0.5*, --, about 9 deg (T. Tanti, Naxxar, Malta, naked eye);
21.38, -0.8*, --, 5 deg (D. W. E. Green, Middlesex County, MA, naked eye);
21.21, -0.8, 20', 12 and 8 deg (J. J. Gonzalez, Asturias, Spain, naked eye);
21.17, -0.9, 25', 2 and 13 deg (J. M. Trigo, Benicassim, Castellon, Spain, naked eye);
21.11, -0.3*, 15', 12 and 6 deg (B. H. Granslo, Fjellhamar, Norway, naked eye);
21.10, -0.3*, --, -- (R. Keen, Mt. Thorodin, CO, naked eye);
21.08, -0.7*, --, 4 deg (G. W. Kronk, Troy, IL, naked eye);
21.06, -0.9*, --, -- and 5 deg (O. Skilbrei, Hoenefoss, Norway, naked eye);
20.79, -0.7*, 35', -- and 8 deg. (V. Znojil, Brno, Czech R., naked eye);
20.79, -0.8, --, 10 deg (M. V. Zanotta, Milan, Italy, naked eye);
20.45, -0.7*, --, 14 deg (G. W. Kronk, Troy, IL, naked eye);
20.18, -0.8, 30', 5 and 18 deg (J. M. Trigo, Benicassim, Castellon, Spain, naked eye);
20.12, -0.3*, --, 12 and 8 deg (H. Luethen, Altona, Germany, naked eye);
20.05, -0.6*, --, 6 deg (G. W. Kronk, Troy, IL, naked eye);
19.80, -0.8*, 30', -- and 7 deg (P. Candy, Viterbo, Italy, naked eye);
19.79, -0.8, --, -- and 10 deg (M. V. Zanotta, Milan, Italy, naked eye);
19.48, -0.2*, --, 15 and 8 deg (R. Keen, Mt. Thorodin, CO, reversed 3x30 binoculars);
19.46, -0.6*, --, 13 deg (G. W. Kronk, Troy, IL, naked eye);
19.19, -0.8, 25', 7 and 15 deg (J. M. Trigo, Benicassim, Castellon, Spain, naked eye);
19.16, -0.5*, --, 10 and 7 deg (O. Skilbrei, Hoenefoss, Norway, naked eye);
19.11, -0.3*, --, -- (R. Keen, Mt. Thorodin, CO, reversed 3x30 binoculars);
19.05, -0.4*, --, 9 and 6 deg (B. H. Granslo, Fjellhamar, Norway, naked eye);
18.83, -0.6, 20', 1 and 7 deg (J. M. Trigo, El Grau, Castellon, Spain, naked eye);
18.50, -0.1*, --, 10 and 8 deg (R. Keen, Mt. Thorodin, CO, reversed 3x30 binoculars);
18.38, -0.6*, --, 5 deg (D. W. E. Green, Middlesex County, MA, naked eye);
18.23, -0.6*, --, 9 and 11 deg (A. Pereira, Cabo da Roca, Portugal, naked eye);
18.21, -0.7, 20', 15 and 8 deg (J. J. Gonzalez, Asturias, Spain, naked eye);
18.18, -0.8, 25', 6 and 13 deg (J. M. Trigo, Benicassim, Castellon, Spain, naked eye);
18.15, -0.6*, 30', 15 and 9 deg (K. Hornoch, Lelekovice, Czech Republic, 1x50 monocular);
18.15, -0.7*, --, 14 and 12 deg (T. Tanti, Naxxar, Malta, naked eye);
18.14, -0.7*, 25', 20 and 11 deg (P. Candy, Cimini Mountains, Italy, naked eye);
18.01, -0.3*, --, -- and 6 deg (B. H. Granslo, Fjellhamar, Norway, naked eye);
17.84, -0.5*, --, 10 and 5 deg (L. T. Heen, Buvika, Norway, naked eye);
17.83, -0.6, about 20', about 4 deg (R. Palcic, Kamnik, Slovenia, naked eye);
17.82, -0.6*, --, 8 and 6 deg (O. Skilbrei, Hoenefoss, Norway, naked eye);
17.80, -0.6*, 30', -- and 6.5 deg (P. Candy, Viterbo, Italy, naked eye);
17.79, -0.7*, 30', -- and 8 deg (K. Hornoch, Lelekovice, Czech Republic, 1x50 monocular);
17.38, -0.2*, 12', 13 and 13 deg (J. Bortle, Stormville, NY, naked eye);
17.38, -0.6*, --, 15 and 7 deg (D. W. E. Green, near Center Harbor, NH, naked eye);
17.23, -0.5*, --, 10 and 10 deg (A. Pereira, Cabo da Roca, Portugal, naked eye);
17.23, -0.5*, --, -- (C. Vitorino, Cabo da Roca, Portugal, naked eye);
17.15, -0.4*, --, -- (R. J. Bouma, Groningen, The Netherlands, naked eye);
17.13, -0.5*, 30', 20 and 10 deg (M. L. Paradowski, Dabrowa, Poland, naked eye);
17.10, -0.8*, 25', 14 deg (K. Cernis, near Vilnius, Lithuania, naked eye);
16.99, -0.4*, --, -- (D. W. E. Green, Cambridge, MA, naked eye);
16.97, -0.7:*, --, -- and 5 deg (O. Skilbrei, Hoenefoss, Norway, naked eye);
16.83, -0.2*, 15', 12 and 7.5 deg (B. H. Granslo, Aarnes, Norway, naked eye);
16.80, -0.5*, 30', -- and 6 deg (P. Candy, Viterbo, Italy, naked eye);
16.44, -0.5, --, 15 deg (G. W. Kronk, Troy, IL, naked eye);
16.39, -0.3*, 14', tails 17 and 11 deg (J. Bortle, Stormville, NY, naked eye);
16.38, -0.6*, --, 15 and 5 deg (D. W. E. Green, Rowley, MA, naked eye);
16.23, -0.6*, --, 14 and 16 deg (A. Pereira, Cabo da Roca, Portugal, naked eye);
16.23, -0.4*, --, 12 and 12 deg (C. Vitorino, Cabo da Roca, Portugal, naked eye);
16.19, -0.6, --, 18 and 10 deg (M. V. Zanotta, San Marco Pass, Italy, naked eye);
16.17, -0.3*, +32', > 6 deg (H. Mikuz, Crni Vrh Observatory, Slovenia, 90-mm-f.l., f/4 lens + V filter + ST-6 CCD);
16.12, -0.2*, 17', 13 and 7.5 deg (B. H. Granslo, Fjellhamar, Norway, naked eye);
16.10, -0.6*, --, 14 and 8 deg (O. Skilbrei, Hoenefoss, Norway, naked eye);
16.09, -0.2*, --, -- (R. Keen, Mt. Thorodin, CO, reversed 3x30 binoculars);
16.05, -0.5*, --, 4 deg (G. W. Kronk, Troy, IL, naked eye);
15.99, -0.5*, --, about 2 deg (D. W. E. Green, Cambridge, MA, naked eye);
15.95, -0.7*, --, 8 deg (K. Cernis, near Vilnius, Lithuania, naked eye);
15.49, -0.3*, 12', 10 deg (C. E. Spratt, Palm Springs, CA, naked eye);
15.45, -0.5*, --, 15 and 8 deg (B. Adams, near Farrar, IA, naked eye);
15.45, -0.4, --, 15 deg (G. W. Kronk, Troy, IL, naked eye);
15.13, -0.4*, 15', 16 and 7.5 deg (B. H. Granslo, Fjellhamar, Norway, naked eye);
15.12, -0.3*, --, 10 deg (H. Luethen, Altona, Germany, naked eye);
15.05, -0.4*, --, 4 deg (G. W. Kronk, Troy, IL, naked eye);
14.80, -0.4*, 30', -- and 4 deg (P. Candy, Viterbo, Italy, naked eye);
14.15, -0.7*, --, 20 deg (T. Tanti, Naxxar, Malta, naked eye);
13.66, -0.3*, --, 20 deg (S. J. O'Meara, Volcano, HI, naked eye);
13.39, -0.4*, --, 23 and 8 deg (D. W. E. Green, near Center Harbor, NH, naked eye);
13.39, -0.2*, 15', 17 & 9 deg (J. Bortle, Stormville, NY, naked eye)
13.23, -0.2*, --, 28 deg (A. Pereira, Cabo da Roca, Portugal, naked eye);
13.17, -0.3*, +32', > 6 deg (H. Mikuz, Crni Vrh Observatory, Slovenia, 90-mm-f.l. f/4 lens + V filter + ST-6 CCD);
13.15, -0.4*, 30', 18 deg (P. Candy, Viterbo, Italy, naked eye);
13.15, -0.4*, 37', 18 deg (T. Tanti, Naxxar, Malta, naked eye);
13.15, -0.4*, --, about 13 deg (F. Anzellini, Frasso Sabino, Italy, naked eye);
13.14, -0.4*, 40', 17 and 8 deg (K. Hornoch, Lelekovice, Czech Republic, 1x50 monocular);
13.09, -0.2*, --, -- (R. Keen, Mt. Thorodin, CO, naked eye);
13.05, -0.6*, --, 5 and 5 deg (O. Skilbrei, Hoenefoss, Norway, naked eye);
12.99, -0.3*, --, -- (D. W. E. Green, Cambridge, MA, naked eye);
12.77, -0.5*, 30', 10 and 8 deg (K. Hornoch, Lelekovice, Czech Republic, 1x50 monocular);
12.77, -0.5*, 40', 8 and 10 deg (M. Plsek, Lelekovice, Czech Republic, 1x30 monocular);
12.45, -0.3, --, 11 deg (G. W. Kronk, Troy, IL, naked eye);
12.41, -0.2*, --, 5 deg (D. W. E. Green, Middlesex County, MA, naked eye);
12.40, -0.2*, 18', 9 and 7 deg (J. Bortle, Stormville, NY, naked eye);
12.23, -0.1*, --, 16 deg (A. Pereira, Cabo da Roca, Portugal, naked eye);
12.22, -0.6, 15', 13 deg (J. J. Gonzalez, Asturias, Spain, naked eye).
12.19, -0.4, 15 deg (M. V. Zanotta, San Marco Pass, Italy, naked eye);
12.17, -0.2*, +32', > 6 deg (H. Mikuz, Crni Vrh Observatory, Slovenia, 90-mm-f.l. f/4 lens + V filter + ST-6 CCD);
12.16, -0.5*, 15', 11 and 6 deg (A. Kammerer, Ettlingen, Germany, naked eye);
12.15, -0.3*, 35', 10 and 7 deg (M. Plsek, Lelekovice, Czech Republic, 1x50 monocular);
12.15, -0.3*, 30', 17 deg (V. Znojil, Brno, Czech R., naked eye);
12.14, -0.4*, 40', 17 and 10 deg (K. Hornoch, Lelekovice, Czech Republic, 1x50 monocular);
11.81, -0.3*, 25', 4.0 deg (P. Candy, Viterbo, Italy, naked eye);
11.48, -0.3, --, 10 deg (G. W. Kronk, Troy, IL, naked eye);
11.42, -0.4*, 12', 15 deg (P. J. Creed, Cambridge, OH; naked eye)
11.17, -0.3*, 25', 11 deg (V. Znojil, Brno, Czech R., naked eye);
11.15, -0.4*, 35', 13 and 9 deg (K. Hornoch, Lelekovice, Czech Republic, 1x50 monocular);
11.14, -0.3*, 13', 3 deg (K. Sarneczky, Budapest, Hungary, naked eye);
11.12, -0.3, -- 16 deg (A. Baransky, Volynskaya, Ukraine, naked eye);
11.04, -0.2, --, 3 deg (G. W. Kronk, Troy, IL, naked eye);
10.83, -0.1*, 15', 13 deg (B. H. Granslo, Movatn, Oslo, Norway, naked eye);
10.77, -0.3*, 30', 8 and 7 deg (K. Hornoch, Lelekovice, Czech Republic, 1x50 monocular);
10.45, -0.2, --, 13 deg (G. W. Kronk, Troy, IL, naked eye);
10.40, -0.4, 18', > 5 deg (P. J. Creed, Massillon, OH; naked eye)
10.23, +0.1*, --, 25 deg (A. Pereira, Cabo da Roca, Portugal, naked eye);
10.22, +0.5*, --, 12 deg (C. Vitorino, Cabo da Roca, Portugal, naked eye);
10.19, -0.2, --, 12 deg (M. V. Zanotta, Laino, Italy, naked eye);
10.19, -0.1, 0.4 deg, 17 and 10.5 deg (S. Garro, Observatoire de la Cote d'Azur);
10.18, -0.1*, +32', > 6 deg (H. Mikuz, Crni Vrh Observatory, Slovenia, 90-mm-f.l. f/4 lens + V filter + ST-6 CCD);
10.17, -0.1*, --, 12 deg (R. J. Bouma, Groningen, The Netherlands, naked eye);
10.17, -0.2* --, 6 deg (G. A. Milani, Padova, Italy, naked eye);
10.16, -0.1*, 30', 9 deg (V. Znojil, Brno, Czech R., naked eye);
10.15, 0.0, -- 16 deg (H. Luethen, Schmalenbeck, Germany, naked eye);
10.15, -0.6, --, 17 deg (K. I. Churyumov, Kiev, Ukraine, naked eye);
10.15, -0.4*, 15', 14 deg (A. Kammerer, Ettlingen, Germany, naked eye);
10.15, -0.3*, --, 12 deg (O. Skilbrei, Hoenefoss, Norway, naked eye);
10.14, -0.4*, 35', 13 and 10 deg (K. Hornoch, Lelekovice, Czech Republic, 1x50 monocular);
10.13, 0.0*, 25', 14 deg (M. L. Paradowski, Dabrowa, Poland, naked eye);
10.04*, -0.1, --, 2 deg (G. W. Kronk, Troy, IL, naked eye);
10.00, -0.2:*, 12', 6.5 deg (B. H. Granslo, Fjellhamar, Norway, naked eye);
9.80, -0.2*, 30', 3.5 deg (P. Candy, Viterbo, Italy, naked eye);
9.76, 0.0*, 20', 12 deg (M. L. Paradowski, Dabrowa, Poland, naked eye);
9.75, -0.4*, --, 5 deg (G. A. Milani, Padova, Italy, naked eye);
9.40, -0.2, 15', 10 deg (P. J. Creed, Cambridge, OH, naked eye);
9.39, +0.2*, 15', 11 and 8 deg (J. Bortle, Stormville, NY, naked eye);
9.38, -0.3*, --, about 10 deg (D. W. E. Green, Center Harbor, NH, naked eye);
9.23, +0.3*, --, 18 deg (A. Pereira, Cabo da Roca, Portugal, naked eye);
9.22, +0.4*, --, 10 deg (C. Vitorino, Cabo da Roca, Portugal, naked eye);
9.22, -0.4, 15', 13 deg (J. J. Gonzalez, Asturias, Spain, naked eye).
9.19, -0.2, --, 12 deg (M. V. Zanotta, Laino, Italy, naked eye);
9.18, -0.1*, +32', > 6 deg (H. Mikuz, Crni Vrh Observatory, Slovenia, 90-mm-f.l. f/4 lens + V filter + ST-6 CCD);
9.18, -0.1*, -- 9 and 4 deg (J. M. San Juan, Teruel, Spain, naked eye);
9.17, -0.2*, --, 12 and 6 deg (J. Carvajal, Teruel, Spain, naked eye);
9.17, -0.1*, -- , 13 deg (R. J. Bouma, Groningen, The Netherlands, naked eye);
9.15, -0.2*, 35', 14 and 10 deg (K. Hornoch, Lelekovice, Czech Republic, 1x50 monocular);
9.14, 0.0, --, 10 deg (H. Luethen, Altona, Germany, naked eye);
9.14, -0.3, 12', 20 deg (K. Sarneczky, Raktanya, Hungary, naked eye);
9.08, -0.4, --, 15 deg (K. I. Churyumov, Kiev, Ukraine, naked eye);
8.92, -0.4*, --, 12 deg (O. Skilbrei, near Hvarnes, Norway, naked eye);
8.86, -0.3*, 15', 13 deg (B. H. Granslo, near Hvarnes, Norway, naked eye);
8.79, -0.2*, 30', 3.5 deg (P. Candy, Viterbo, Italy, naked eye);
8.50, +0.1*, --, -- (R. Keen, Mt. Thorodin, CO, naked eye);
8.46, -0.1*, about 18', 12 deg (B. Adams, Mingo, IA, naked eye);
8.46, 0.0, --, 12 deg (G. W. Kronk, Troy, IL, naked eye);
8.45, 0.0*, --,-- (B. Adams, Mingo, IA, 1x50 monocular);
8.22, -0.2, 15', 9 deg (J. J. Gonzalez, Asturias, Spain, naked eye);
8.19, -0.1, 12 deg (M. V. Zanotta, Laino, Italy, naked eye);
8.18, +0.3*, 12', 9 deg (G. Glitscher, Darmstadt, Germany, naked eye);
8.17, 0.0*, 30', 16 deg (V. Znojil, Brno, Czech R., naked eye);
8.16, -0.2*, 30', 15 and 5 deg (M. Plsek, Lelekovice, Czech Republic, 1x50 monocular);
8.16, -0.2*, 40', 15 deg (P. Candy, Viterbo, Italy, naked eye);
8.15, -0.1*, 40', 18 and 10 deg (K. Hornoch, Lelekovice, Czech Republic, 1x50 monocular);
8.14, -0.2, 15', 25 deg (K. Sarneczky, Raktanya, Hungary, naked eye);
8.07, +0.4:*, --, -- (R. Keen, Mt. Thorodin, CO, naked eye);
7.99, 0.0*, --, -- (D. W. E. Green, Cambridge, MA, naked eye);
7.77, 0.0:*, -- , -- (G. Glitscher, Darmstadt, Germany, naked eye);
7.74, 0.0*, about 15', 8 deg (M. L. Paradowski, Lublin, Poland, 7x35 binoculars);
7.74, -0.1*, 35', 14 deg (V. Znojil, Brno, Czech R., naked eye);
7.50, +0.3*, --, -- (R. Keen, Mt. Thorodin, CO, naked eye);
7.47, 0.0, --, 10 deg (G. W. Kronk, Troy, IL, naked eye);
7.44, -0.1, 15', 13 deg (P. J. Creed, Delaware Lake, OH, naked eye);
7.42, +0.1, --, 3 deg (J. S. Caballero, Alexandria, VA, naked eye);
7.41, 0.0*, --, about 5 deg (D. W. E. Green, Middlesex County, MA, naked eye);
7.39, +0.4*, about 12', 9 deg (J. Bortle, Stormville, NY, naked eye);
7.22, -0.2*, about 12', 11 deg (H. Zekl, Einhausen, Germany, naked eye);
7.19, 0.0*, 12', -- (G. Glitscher, Darmstadt, Germany, naked eye);
7.18, +0.1*, - , 12 deg (R. J. Bouma, Groningen, The Netherlands, naked eye);
7.18, +0.1*, +32', > 6 deg (H. Mikuz, Crni Vrh Observatory, Slovenia, 90-mm-f.l. f/4 lens + V filter + ST-6 CCD);
7.18, +0.2*, --, 8 deg (A. Kammerer, Ettlingen, Germany, naked eye);
7.16, 0.0, 8 degrees tail at PA 338, (H. Luethen, Altona, Germany, naked eye)
7.13, 0.0, --, 15 deg (O. Skilbrei, Hoenefoss, Norway, naked eye);
6.83, -0.1*, 15', 11 deg (B. H. Granslo, Movatn, Oslo, Norway, naked eye);
6.49, 0.0, --, 14 deg (A. Hale, Cloudcroft, NM, naked eye);
6.47, +0.1, --, 10.5 deg (G. W. Kronk, Troy, IL, naked eye);
6.46, -0.1*, about 15', 18 deg (B. Adams, Mingo, IA, naked eye);
6.38, +0.1, ---, 3 deg (J. S. Caballero, Alexandria, VA, naked eye);
6.16, +0.4*, --, 8 deg (T. Tanti, Naxxar, Malta, naked eye);
6.15, -0.1*, 40', 25 deg (K. Hornoch, Lelekovice, Czech Republic, 1x50 monocular);
6.15, +0.2, 20', 20 deg (K. Sarneczky, Veresegyhaz, Hungary, naked eye);
6.13, -0.1*, --, 4 deg (K. Cernis, near Vilnius, Lithuania, naked eye);
5.74, -0.2*, --, 13 deg (K. Cernis, near Vilnius, Lithuania, naked eye);
5.74, +0.2*, 12', 5 deg (M. L. Paradowski, Lublin, Poland, 7x35 binoculars);
5.19, +0.4, --, -- (A. Diepvens, Balen, Belgium, naked eye);
5.19, +0.2*, +29', > 6 deg (H. Mikuz, Crni Vrh Observatory, Slovenia, 90-mm-f.l. f/4 lens + V filter + ST-6 CCD);
5.17, +0.2*, --, 9 deg (R. J. Bouma, Groningen, The Netherlands, naked eye);
5.16, +0.3*, --, 5 deg (H. Luethen, Altona, Germany, naked eye);
5.16, +0.3*, 39', 9 deg (T. Tanti, Naxxar, Malta, naked eye);
5.16, +0.3*, 25', 20 deg (M. Plsek, Lelekovice, Czech Republic, 1x50 monocular);
5.15, 0.0*, 40', 25 deg (K. Hornoch, Lelekovice, Czech Republic, 1x50 monocular);
5.11, +0.4:*, 15', 4.5 deg (B. H. Granslo, Fjellhamar, Norway, naked eye);
5.08, -0.1, --, -- (A. Baransky, Kiev, Ukraine, naked eye);
4.74, +0.2, 12', 4 deg (M. L. Paradowski, Lublin, Poland, 7x35 binoculars);
4.67, +0.4*, --, 5-6 deg (S. J. O'Meara, Volcano, HI, naked eye);
4.48, +0.2, --, 11 deg (A. Hale, Cloudcroft, NM, naked eye);
4.47, +0.3, --, 9 deg (G. W. Kronk, Troy, IL, naked eye);
4.24, +0.6*, --, 15 deg (C. Vitorino, Cabo da Roca, Portugal, naked eye);
4.23, +0.3*, --, 12 deg (A. Pereira, Cabo da Roca, Portugal, naked eye);
4.18, +0.3*, -- , 10 deg (R. J. Bouma, Groningen, The Netherlands, naked eye);
4.16, +0.3*, --, 5 deg (H. Luethen, Altona, Germany, naked eye);
4.16, +0.3, 33', 11 deg (T. Tanti, Naxxar, Malta, naked eye);
4.11, +0.1*, 14', 11 deg (B. H. Granslo, Fjellhamar, Norway, naked eye);
4.10, -0.2, --, 12 deg (K. I. Churyumov, Kiev, Ukraine, naked eye);
4.06, 0.0, --, -- (A. Baransky, Kiev, Ukraine, naked eye);
3.47, +0.4, --, 5 deg (G. W. Kronk, Troy, IL, naked eye);
3.19, +0.3, --, 9 deg (M. V. Zanotta, Laino, Italy, naked eye);
3.17, +0.3, --, 9.5 deg (R. J. Bouma, Groningen, The Netherlands, naked eye);
3.17, +0.4, 30', 9 deg (T. Tanti, Naxxar, Malta, naked eye);
3.17, +0.4, --, 7.5 deg (B. H. Granslo, Fjellhamar, Norway, naked eye);
3.16, +0.3*, --, 5 deg (H. Luethen, Altona, Germany, naked eye);
3.16, +0.4*, --, 16 deg (H. Luethen, Schmalenbeck, Germany, naked eye);
3.14, -0.1, --, 12 deg (K. I. Churyumov, Kiev, Ukraine, naked eye);
3.13, +0.3, --, 10 deg (O. Skilbrei, Hoenefoss, Norway, naked eye);
3.12, +0.3, --, 16 deg (A. Baransky, Kiev, Ukraine, naked eye);
2.79, +0.3*, 12', 7 deg (B. H. Granslo, Tryvann, Oslo, Norway, naked eye);
2.73, +0.5, 12', 2 deg (M. L. Paradowski, Lublin, Poland, naked eye);
2.67, +0.5:*, --, -- (S. J. O'Meara, Volcano, HI, naked eye);
2.45, +0.2*, --, -- (B. Adams, Mingo, IA, 1x50 monocular);
2.45, +0.2*, about 15', 4 deg (B. Adams, Mingo, IA, naked eye);
2.22, +0.4, 12', 3 deg (J. J. Gonzalez, Asturias, Spain, naked eye);
2.19, +0.2*, 20', 10 deg (G. Glitscher, Darmstadt, Germany, naked eye);
2.19, +0.4, --, 8 deg (M. V. Zanotta, Mt. Generoso, Italy, naked eye);
2.17, +0.4*, +29', about 5 deg (H. Mikuz, Crni Vrh Observatory, Slovenia, 90-mm-f.l. f/4 lens + V filter + ST-6 CCD);
2.16, +0.5, 27', 7 deg (T. Tanti, Naxxar, Malta, naked eye);
2.16, +0.4, 25', 13 deg (L. Szentasko, Veresegyhaz, Hungary, naked eye);
2.16, +0.3, 20', 17 deg (K. Sarneczky, Veresegyhaz, Hungary, naked eye);
2.16, +0.5*, 30', 12 deg (V. Znojil, Brno, Czech R., naked eye);
2.15, +0.5, 12', 7 deg (M. L. Paradowski, Lublin, Poland, naked eye);
2.14, +0.3*, 35', 5 deg (K. Hornoch, Lelekovice, Czech Republic, 1x50 monocular);
1.23, +0.2*, --, -- (A. Pereira, Cabo da Roca, Portugal, 1x35 monocular);
1.22, +0.5*, --, 7 deg (C. Vitorino, Cabo da Roca, Portugal, naked eye);
1.22, +0.4*, --, 9 deg (A. Pereira, Cabo da Roca, Portugal, naked eye);
1.19, +0.5*, --, -- (R. J. Bouma, Groningen, The Netherlands, naked eye);
1.18, +0.6, 12', 10 deg (B. H. Granslo, Fjellhamar, Norway, naked eye);
1.17, +0.5, 29', 8 deg (T. Tanti, Naxxar, Malta, naked eye);
1.16, +0.5*, 25', 8 deg (P. Candy, Viterbo, Italy, naked eye);
1.12, +0.4, --, 14 deg (A. Baransky, Kiev, Ukraine, naked eye);
1.00, +0.3*, --, -- (O. Skilbrei, Hoenefoss, Norway, naked eye);
Feb. 28.79, 0.5*, --, 7.5 deg (O. Skilbrei, Hoenefoss, Norway, naked eye);
28.47, 0.6, --, 2 deg (G. W. Kronk, Troy, IL, naked eye);
28.20, 0.6*, 25', > 8 deg (V. Znojil, Brno, Czech R., naked eye);
28.19, 0.5*, +29', about 5 deg (H. Mikuz, Crni Vrh Observatory, Slovenia, 90-mm-f.l. f/4 lens + V filter + ST-6 CCD);
28.19, 0.5*, 25', 4 deg (K. Hornoch, Lelekovice, Czech Republic, 1x50 monocular);
28.19, 0.6, 25', 6 deg (M. V. Zanotta, Milan, Italy, naked eye);
28.18, 0.5*, --, -- (R. J. Bouma, Groningen, The Netherlands, naked eye);
28.17, 0.5*, --, -- (G. A. Milani, Padova, Italy, naked eye);
28.16, 0.8*, --, -- (A. Kammerer, Ettlingen, Germany, naked eye);
28.16, 0.5, 15', 10 deg (K. Sarneczky, Szeged, Hungary, naked eye);
28.15, 0.7*, 35', 8 deg (P. Candy, Viterbo, Italy, naked eye);
27.21, 0.6*, --, -- (R. J. Bouma, Groningen, The Netherlands, naked eye);
27.20, 0.6*, 25', -- (V. Znojil, Brno, Czech R., naked eye);
27.19, 0.7, --, 7.5 deg (O. Skilbrei, Hoenefoss, Norway, naked eye);
27.19, 0.4*, 40', 8 deg (M. Plsek, Lelekovice, Czech Republic, 1x30 monocular);
27.18, 0.7, 20', 5.5 deg (S.Baroni, Milan, Italy, naked eye);
27.17, 0.9, 35', 7 deg (T. Tanti, Naxxar, Malta, 0.03-m refractor);
27.16, 0.5*, 25', 10 deg (K. Hornoch, Lelekovice, Czech Republic, 1x50 monocular);
27.16, 0.7*, --, 5 deg (H. Luethen, Altona, Germany, naked eye);
27.15, 0.7, 10', 10 deg (B. H. Granslo, Fjellhamar, Norway, naked eye);
26.44, 0.9, --, -- (J. S. Caballero, Alexandria, VA, naked eye);
26.42, 1.0*, 20', 3 deg (J. Bortle, Stormville, NY, naked eye);
26.19, 0.8, --, > 5 deg (O. Skilbrei, Hoenefoss, Norway, naked eye);
26.17, 1.1, --, -- (A. Diepvens, Balen, Belgium, naked eye);
26.14, 0.8, 10', 7 deg (B. H. Granslo, Fjellhamar, Norway, naked eye);
25.75, 1.0*, --, 2 deg (H. Luethen, Astro AG Othmarschen, Germany, naked eye);
25.48, 0.7, --, 2 deg (G. W. Kronk, Troy, IL, naked eye);
25.44, 0.8, 10', 2 deg (P. J. Creed, Massillon, OH, naked eye);
25.44, 0.9, --, -- (J. S. Caballero, Alexandria, VA, naked eye);
25.43, 0.7*, --, about 2.5 deg (D. W. E. Green, Middlesex County, MA, naked eye);
25.42, 1.0*, about 15', 4 deg (J. Bortle, Stormville, NY, naked eye);
25.42, 0.7, --, -- (W. A. Feibelman, Silver Spring, MD, naked eye);
25.21, 0.9, --, 8 deg (H. Luethen, Altona, Germany, naked eye);
24.42, 0.8*, --, about 2 deg (D. W. E. Green, Middlesex County, MA, naked eye);
24.23, 0.7, 20', -- (J. M. Trigo, Benicassim, Castellon, Spain, naked eye);
24.17, 1.0, 22', 6 deg (T. Tanti, Naxxar, Malta, 0.03-m refractor);
24.14, 0.5, --, -- (A. Baransky, Kiev, Ukraine, naked eye);
23.70, 1.0, 15', -- (M. L. Paradowski, Dabrowa, Poland, 7x50 binoculars);
23.47, 0.8, --, about 2 deg (G. W. Kronk, Troy, IL, naked eye);
23.42, 1.2*, --, 2 deg (J. Bortle, Stormville, NY, naked eye);
23.41, 0.9*, --, about 2.5 deg (D. W. E. Green, Middlesex County, MA, naked eye);
23.41, 0.8, --, -- (W. A. Feibelman, Silver Spring, MD, naked eye);
23.21, 1.1, 20', 5 deg (S. Baroni, Milan, Italy, naked eye);
23.19, 0.8*, about 30', -- (H. Mikuz, Crni Vrh Observatory, Slovenia, 90-mm-f.l. f/4 lens + V filter + ST-6 CCD);
23.19, 0.8*, 40', 13 deg (V. Znojil, Brno, Czech R., naked eye);
23.17, 1.1, --, -- (T. Tanti, Naxxar, Malta, 0.03-m refractor);
22.65, 1.1, --, -- (S. J. O'Meara, Volcano, HI, naked eye);
22.49, 0.9, --, 2.0 (W. Dillon, Missouri City, TX, naked eye);
22.18, 1.1, --, -- (T. Tanti, Naxxar, Malta, 0.03-m refractor);
21.74, 1.1*, --, -- (H. Luethen, Klein-Flottbek, Germany, naked eye);
21.67, 1.3, --, -- (S. J. O'Meara, Volcano, HI, naked eye);
21.23, 0.9, 30', 0.5 deg (J.M.Trigo, Benicassim, Castellon, Spain, naked eye);
21.20, 0.9*, about 40', about 5 deg (H. Mikuz, Crni Vrh Observatory, Slovenia, 90-mm-f.l. f/4 lens + V filter + ST-6 CCD);
21.18, 1.1, 25', 8 deg (T. Tanti, Naxxar, Malta, 0.03-m refractor);
20.45, 1.0, 11', 2 deg (P. J. Creed, Massillon, OH, naked eye);
20.42, 0.8, --, -- (B. G. Marsden, Lexington, MA, naked eye);
20.41, 1.2*, about 21', 2-3 deg (J. Bortle, Stormville, NY, naked eye, moonlight);
20.40, 1.1*, --, 2 deg (D. W. E. Green, Middlesex County, MA, naked eye);
20.23, 1.0, 30', 3 deg (J. M. Trigo, Benicassim, Castellon, Spain, naked eye);
20.23, 1.2*, --, -- (G. Glitscher, Darmstadt, Germany, naked eye);
20.23, 1.0, --, -- (W. Hasubick, Buchloe, Germany, naked eye);
20.20, 1.0, --, -- (R.J. Bouma, Groningen, The Netherlands, naked eye);
20.17, 1.2, 22', 6 deg (T. Tanti, Naxxar, Malta, 0.03-m refractor);
19.24, 1.1, 12', 5 deg (J. J. Gonzalez, Asturias, Spain, naked eye);
19.24, 1.1*, --, 1 deg (F. Martin, Madrid, Spain, naked eye);
19.23, 1.1, 30', 2 deg (J. M. Trigo, Benicassim, Castellon, Spain, naked eye);
19.22, 1.1*, --, -- (W. Hasubick, Buchloe, Germany, naked eye);
19.21, 1.2*, 25', 4 deg (J. Carvajal, Madrid, Spain, naked eye);
19.21, 1.3, 16', 3 deg (S. Baroni, Milan, Italy, naked eye);
19.20, 1.4*, 12', > 8 deg (G. Glitscher, Darmstadt, Germany, naked eye);
19.17, 1.1, 22', 8 deg (T. Tanti, Naxxar, Malta, 0.03-m refractor);
19.16, 1.2*, --, -- (V. Radeva, Varna, Bulgaria, naked eye);
19.14, 1.7, --, 3.5 deg (S. V. Zhuiko, Russia, Moscow, naked eye);
19.12, 0.8, --, -- (A. Baransky, Kiev, Ukraine, naked eye);
18.44, 1.2, 9, -- (J. S. Caballero, Alexandria, VA, naked eye);
18.24, 1.3, 30', 1 deg (J. M. Trigo, Benicassim, Castellon, Spain, 7x50 binoculars);
18.18, 1.1*, 30', -- (M. Plsek, Lelekovice, Czech Republic, 1x50 monocular);
18.20, 1.1*, 35', 11 deg (V. Znojil, Brno, Czech R., naked eye);
18.19, 1.3*, --, -- (G. A. Milani, Padova, Italy, naked eye);
18.19, 1.0*, about 40', -- (H. Mikuz, Crni Vrh Observatory, Slovenia, 180-mm-f.l. f/2.8 lens + V filter + CCD);
17.65, 1.5*, --, 10 deg (S. J. O'Meara, Volcano, HI, naked eye);
16.44, 0.9, --, -- (B. G. Marsden, Lexington, MA, naked eye);
16.42, 1.3*, --, -- (D. W. E. Green, Middlesex County, MA, naked eye);
15.49, 1.1, --, about 7 deg (G. Kronk, Troy, IL, naked eye);
13.65, 1.3*, --, 15 deg (S. J. O'Meara, Volcano, HI, naked eye);
13.43, 1.8, about 17', -- (J. Bortle, Stormville, NY, naked eye);
12.65, 1.6*, --, 15 deg (S. J. O'Meara, Volcano, HI, naked eye);
11.21, 1.5, --, -- (R. J. Bouma, Groningen, The Netherlands, naked eye);
10.43, 2.1*, about 25', -- (J. Bortle, Stormville, NY, naked eye);
10.19, 1.6*, about 40', about 3 deg (H. Mikuz, Crni Vrh Observatory, Slovenia, 180-mm-f.l. f/2.8 lens + V filter + CCD);
9.27, 1.8*, --, 4.5 deg (A. Pereira, Cabo da Roca, Portugal, naked eye);
8.22, 1.6*, --, -- (R. J. Bouma, Groningen, The Netherlands, naked eye);
7.41, 1.6*, --, -- (D. W. E. Green, Rowley, MA, naked eye);
7.21, 1.8*, about 40', -- (H. Mikuz, Crni Vrh Observatory, Slovenia, 180-mm-f.l. f/2.8 lens + V filter + CCD);
5.53, 2.2, --, 2 deg (R. Keen, Mt. Thorodin, CO, naked eye);
4.65, 2.0, --, 5 deg (S. J. O'Meara, Volcano, HI, naked eye);
4.21, 1.9*, about 60', -- (H. Mikuz, Crni Vrh Observatory, Slovenia, 90-mm-f.l. f/4 lens + V filter + ST-6 CCD);
3.20, 2.0*, about 60', -- (H. Mikuz, Crni Vrh Observatory, Slovenia, 90-mm-f.l. f/4 lens + V filter + ST-6 CCD);
2.53, 2.4*, --, -- (R. Keen, Mt. Thorodin, CO, naked eye);
2.22, 2.2*, > 20', -- (M. V. Zanotta, Mt. Ponna, Italy, naked eye);
1.20, 2.4, 10', -- (A. Trebacz, Niepolomice, Poland, 10x50 binoculars);
Jan. 31.21, 2.3*, about 60' (H. Mikuz, Crni Vrh Observatory, Slovenia, 90-mm-f.l. f/4 lens + V filter + ST-CCD; 2-deg ion and dust tails);
29.65, 2.2, -- (S. J. O'Meara, Volcano, HI, naked eye; 1 deg tail);
18.44, 2.5*, -- (D. W. E. Green, Rowley, MA, naked eye; tail 3 deg long);
13.45, 3.3, 7' (J. E. Bortle, Stormville, NY, 10x50 binoculars);
9.44, 3.0*, -- (D. W. E. Green, Rowley, MA, naked eye);
5.25, 3.2, -- (R. J. Bouma, Groningen, The Netherlands, naked eye);