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Table 2
Photometric and polarimetric results obtained for comet 152P, 74P, and 67P.
| Target | Date | Time | Phase angle | r | Δ | R | V | H R | H V | V−R |
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|
| (dd/mm/yyyy) | hh:mm | (degrees) | au | au | (%) | (%) | ||||||
|
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| 152P | 05/04/2012 | 08:30 | 15.37 | 3.158 | 2.496 | 17.97 | 18.74 | 13.49 | 14.24 | 0.74 | –0.922 ± 0.066 | 0.235 ± 0.065 |
| 30/04/2012 | 06:15 | 9.80 | 3.139 | 2.239 | 17.51 | 18.02 | 13.29 | 13.79 | 0.57 | –1.483 ± 0.039 | 0.006 ± 0.039 | |
| 21/05/2012 | 05:45 | 3.38 | 3.127 | 2.126 | 16.95 | 17.49 | 12.84 | 13.37 | 0.54 | –1.121 ± 0.031 | 0.029 ± 0.031 | |
| 23/05/2012 | 03:15 | 2.86 | 3.126 | 2.122 | 16.87 | 17.47 | 12.87 | 13.36 | 0.60 | –1.209 ± 0.031 | 0.035 ± 0.031 | |
| 15/07/2012 | 03:30 | 14.54 | 3.116 | 2.368 | 17.49 | 18.15 | 13.15 | 13.81 | 0.66 | –1.096 ± 0.039 | 0.054 ± 0.040 | |
| 16/07/2012 | 00:57 | 14.91 | 3.116 | 2.368 | – | – | – | – | – | –1.089 ± 0.038 | 0.117 ± 0.039 | |
| 24/07/2012 | 02:00 | 16.31 | 3.117 | 2.466 | 17.79 | 18.12 | 13.16 | 13.69 | 0.54 | –0.926 ± 0.038 | 0.040 ± 0.038 | |
| 74P | 21/06/2012 | 07:05 | 7.74 | 4.557 | 3.705 | 19.34 | 20.12 | 13.20 | 13.99 | 0.79 | – | – |
| 26/06/2012 | 09:04 | 6.70 | 4.561 | 3.666 | 19.37 | – | 13.26 | – | – | –1.384 ± 0.087 | 0.182 ± 0.094 | |
| 17/07/2012 | 06:24 | 2.35 | 4.579 | 3.576 | 19.00 | 19.68 | 12.93 | 13.61 | 0.68 | –1.231 ± 0.088 | 0.002 ± 0.088 | |
| 24/07/2012 | 06:11 | 1.36 | 4.585 | 3.574 | 18.89 | 19.58 | 12.82 | 13.51 | 0.70 | –0.800 ± 0.078 | 0.031 ± 0.101 | |
| 18/08/2012 | 06:25 | 5.75 | 4.606 | 3.680 | 19.41 | 20.11 | 13.27 | 13.97 | 0.70 | – | – | |
| 19/08/2012 | 02:17 | 5.92 | 4.602 | 3.688 | 19.09 | 19.77 | 12.94 | 13.62 | 0.68 | –1.222 ± 0.037 | 0.150 ± 0.037 | |
| 10/09/2012 | 03:55 | 9.72 | 4.602 | 3.920 | – | – | – | – | – | –1.160 ± 0.114 | 0.210 ± 0.115 | |
| 16/09/2012 | 03:56 | 10.47 | 4.627 | 3.999 | – | – | – | – | – | –1.400 ± 0.132 | 0.001 ± 0.131 | |
| 67P | 09/02/2010 | 06:54 | 15.37 | 3.447 | 2.951 | 21.08 | – | 16.05 | – | – | –0.793 ± 0.53 | –0.621 ± 0.53 |
| 22/02/2010 | 05:41 | 13.14 | 3.523 | 2.850 | 21.12 | – | 16.11 | – | – | –1.067 ± 0.49 | 0.178 ± 0.49 | |
| 06/03/2010 | 08:42 | 10.33 | 3.593 | 2.780 | 20.39 | – | 15.39 | – | – | –1.116 ± 0.57 | –0.227 ± 0.59 | |
| 07/03/2010 | 04:30 | 10.11 | 3.598 | 2.776 | 20.95 | – | 15.95 | – | – | –1.959 ± 0.50 | –0.621 ± 0.49 | |
| 09/03/2010 | 06:08 | 9.56 | 3.610 | 2.768 | 20.84 | – | 15.84 | – | – | –2.031 ± 0.41 | –0.178 ± 0.42 | |
| 16/03/2010 | 04:45 | 7.61 | 3.649 | 2.747 | 20.76 | – | 15.76 | – | – | –1.428 ± 0.37 | 0.258 ± 0.38 | |
| 29/03/2010 | 03:50 | 2.72 | 3.721 | 2.744 | 19.85 | – | 14.81 | – | – | –0.568 ± 1.17 | –1.683 ± 1.18 | |
Notes. Each magnitude has a standard error of 0.05 mag.
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