COMET C/2013 R1 (Lovejoy)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2013
Dec. 12.85, 5.2, 12' (Y. Nagai, Niigata, Japan, 11x80 binoculars);
8.81, 5.5, 12' (Y. Nagai, Niigata, Japan, 11x80 binoculars);
6.43, 5.0, 20' (W. Souza, Orlando, FL, USA, 15x70 binoculars);
5.21, 5.1, 12' (J. J. Gonzalez, Leon, Spain, naked eye; 2.2-deg tail in 10x50 binoculars);
4.22, 5.1, 6'.7 (W. Hasubick, Buchloe, Germany, 10x50 binoculars);
3.75, 4.9, 10' (B. H. Granslo, Eidsvoll Verk, Norway, 10x50 binoculars);
3.22, 5.3, -- (W. Hasubick, Buchloe, Germany, 10x50 binoculars);
2.54, 5.2, -- (Carl Hergenrother, Tucson, AZ, U.S.A., naked eye);
2.21, 5.2, 7' (U. Pilz, Leipzig, Germany, 7x50 binoculars);
2.20, 5.0, 7' (J. Warell, Lindby, Sweden, 11x80 binoculars; 1.0-deg tail);
1.85, 5.5, 14' (K. Yoshimoto, Yamaguchi, Japan, 8x42 binoculars; 1.6-deg tail);
1.78, 5.6, 5' (J. Karnfelt, Gothenburg, Sweden, 0.40-m reflector; 1.0-deg tail);
Nov. 30.99, 5.1, 11' (B. H. Granslo, Steinbruvann, Oslo, Norway, 10x50 binoculars);
30.84, 5.4, 12' (Y. Nagai, Niigata, Japan, 12x50 binoculars);
30.84, 4.9, 15' (K. Yoshimoto, Yamaguchi, Japan, 8x42 binoculars; 2.3-deg tail);
30.23, 4.8, 12' (T. Karhula, Vasteras, Sweden, 10x50 binoculars; 2.5-deg tail);
29.84, 5.3, 12' (Y. Nagai, Niigata, Japan, 12x50 binoculars);
28.72, 5.1, 8' (J. Karnfelt, Gothenburg, Sweden, 0.25-m reflector);
28.23, 5.6, -- (G. Holmberg, Lund, Sweden, 15x70 binoculars);
