最近较亮的彗星

COMET C/2006 M4 (SWAN)
    Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2006
Oct. 29.74, 4.7, 12' (T. Scarmato, Calabria, Italy, 20x90 binoculars);
    29.73, 5.3, 7' (A. Diepvens, Balen, Belgium, 20x50 binoculars);
    28.82, 5.8, 10' (A. Giambersio, Potenza, Italy, 7x50 binoculars);
    28.76, 4.5, 10' (V. Gonano, Udine, Italy, 10x50 binoculars);
    27.83, 4.8, 8' (J. J. Gonzalez, Asturias, Spain, naked eye; 5.0-deg tail);
    27.74, 4.3, -- (T. Scarmato, Calabria, Italy, naked eye);
    26.81, 4.9, 8' (J. J. Gonzalez, Asturias, Spain, naked eye; 4.0-deg tail);
    26.76, 4.8, 7' (A. Diepvens, Balen, Belgium, 20x50 binoculars);
    26.76, 4.4, 25' (K. Hornoch, Vohancice, Czech Republic, naked eye);
    26.73, 4.5, 13' (M. Meyer, Frauenstein, Germany, 10x50 binoculars; 3-deg tail in p.a. 35 deg);
    26.73, 4.0, 15' (S. Foglia, Novara, Italy, 20x80 binoculars);
    26.72, 4.9:, 12' (R. Kannenberg and S.Tsintsarska, Basel, Switzerland, 10x50 binoculars);
    26.72, 4.1, -- (T. Scarmato, Calabria, Italy, naked eye);
    26.02, 4.3, 15' (P. Creed, Cambridge, OH, naked eye; 1.0-deg tail in p.a. 35 deg);
    25.99, 4.5, & 5' (G. R. Chester, Washington, DC);
    25.90, 4.6, 6' (J. Warell, Uppsala, Sweden, 11x80 binoculars; low alt.);
    25.86, 4.8, 15' (A. Giambersio, Potenza, Italy, 7x50 binoculars);
    25.81, 4.3, 10' (J. J. Gonzalez, Asturias, Spain, 7x50 binoculars; 3.0-deg tail in p.a. 30 deg);
    25.78, 4.6, 13' (P. Majewski, Torun, Poland, 10x50 binoculars);
    25.77, 4.6:, 24' (R. Kannenberg, Zurich, Switzerland, 10x50 binoculars);
    25.74, 4.5, 10' (B. H. Granslo, Fjellhamar, Norway, 7-cm refractor; 1.0-deg tail in p.a. 35 deg);
    25.73, 4.4, 17' (K. Hornoch, Vohancice, Czech Republic, 10x50 binoculars; 2.9-deg tail in p.a. 25 deg);
    25.72, 4.2, -- (M. Meyer, Frauenstein, Germany, naked eye);
    25.72, 4.4, 8' (H. Dahle, Fjellhamar, Norway, naked eye);
    25.72, 3.8, -- (T. Scarmato, Calabria, Italy, naked eye);
    25.70, 5.4, 6' (O. Maraev, Saratov, Russia, 11-cm reflector);
    25.40, 4.6, 10' (Y. Nagai, Gunma, Japan, 7x35 binoculars);
    25.08, 4.4, 9' (B. H. Granslo, Fjellhamar, Norway, 7x50 binoculars; alt. 6.5 deg.);


COMET C/2006 L1 (GARRADD)
    Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2006
Oct. 27.21, 9.8, 4' (J. J. Gonzalez, Asturias, Spain, 25x100 binoculars; zodiacal light);
    27.13, 10.5, 3'.5 (M. Meyer, Frauenstein, Germany, 15-cm refractor);
    23.82, 10.5, 4'.1 (K. Yoshimoto, Yamaguchi, Japan, 25-cm reflector);
    23.48, 12.2, 1'.3 (E. Guido and G. Sostero, near Mayhill, NM, 25-cm reflector + CCD);
    19.13, 11.1, 1'.5 (M. Reszelski, Szamotuly-Galowo, Poland, 41.0-cm reflector);
    16.50, 11.5, 2' (A. Hale, Cloudcroft, NM, 41-cm reflector; moonlight);
    16.49, 11.8, 2'.5 (E. Guido and G. Sostero, near Mayhill, NM, 0.25-m reflector + CCD);

COMET C/2006 T1 (Levy)
    Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2006
Oct. 27.22, 10.5:, 2' (J. J. Gonzalez, Asturias, Spain, 20-cm reflector; bright zodiacal light);
    24.15, 10.9, 1' (M. L. Paradowski, Lublin, Poland, 0.20-m reflector);
    23.84, 11.4:, 2'.2 (K. Yoshimoto, Yamaguchi, Japan, 25-cm reflector);
    23.48, 12.0, 1'.6 (E. Guido and G. Sostero, near Mayhill, NM, 25-cm reflector + CCD);
    23.14, 10.8, 1' (M. L. Paradowski, Lublin, Poland, 0.20-m reflector; haze);
    19.14, 10.1, 2'.5 (M. Reszelski, Szamotuly-Galowo, Poland, 41.0-cm reflector);
    17.14, 10.0, 2'.7 (M. Reszelski, Szamotuly-Galowo, Poland, 13.0-cm reflector);
    16.82, 10.9, 1'.2 (Y. Nagai, Gunma, Japan, 300-mm camera lens + CCD);
COMET 4P/Faye
    Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2006
Oct. 27.89, 9.3, 4' (J. J. Gonzalez, Asturias, Spain, 25x100 binoculars; 0.1-deg tail);
    27.16, 9.3, 4' (J. J. Gonzalez, Asturias, Spain, 25x100 binoculars; 0.1-deg tail);
    26.89, 9.7, 4'.4 (M. Meyer, Frauenstein, Germany, 15-cm refractor);
    25.81, 9.7, 3'.8 (M. Meyer, Frauenstein, Germany, 15-cm refractor);
    24.95, 9.3, 3'.0 (L. A. Mansilla, Canary Is., 200-mm camera lens + CCD);
    24.91, 10.1, 2' (A. Diepvens, Balen, Belgium, 15-cm refractor);
    23.76, 9.4, 4' (K. Yoshimoto, Yamaguchi, Japan, 20x100 binoculars);
    22.91, 10.1, 3' (V. Ivanov, Saratov, Russia, 27-cm reflector);
    22.34, 10.4, 1'.9 (M. Linnolt, Dillingham, Hawaii, 0.50-m reflector);
    21.72, 9.5, 4' (K. Yoshimoto, Yamaguchi, Japan, 20x100 binoculars);
    20.82, 9.4, 4' (J. J. Gonzalez, Asturias, Spain, 25x100 binoculars);


COMET 177P/2006 M3 (BARNARD)
    Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2006
Oct. 27.19, 11.0, 4' (J. J. Gonzalez, Asturias, Spain, 20-cm reflector);
    19.01, 11.0, 3'.5 (M. Reszelski, Szamotuly-Galowo, Poland, 41.0-cm reflector);
    17.87, 10.8, 3'.5 (M. Reszelski, Szamotuly-Galowo, Poland, 13.0-cm reflector);
    16.98, 10.8, 4' (M. Reszelski, Szamotuly-Galowo, Poland, 41.0-cm reflector);
    16.86, 11.0:, 3'.5 (A. Kammerer, Malsch, Germany, 0.30-m reflector);
    15.87, 11.0:, 3'.5 (A. Kammerer, Malsch, Germany, 0.30-m reflector);
    14.88, 10.9, 5' (J. J. Gonzalez, Leon, Spain,  20-cm reflector);
    12.87, 10.8, 5' (J. J. Gonzalez, Asturias, Spain, 20-cm reflector);
     9.43, 11.4, 2'.3 (S. Yoshida, Gunma, Japan, 40-cm reflector);
     6.12, 10.5, 4'.5 (M. Reszelski, Szamotuly-Galowo, Poland, 41.0-cm reflector; moonlight);

还是M4亮，可惜没机会看 :mrgreen:

从数据上来看，M4不是很稳定哦

看得我直头晕^_^

m4 我们已经用双筒看到了

你的双筒的倍数有几大？