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Table 5

Afρ values for the target comets, derived for all the filters in selected optical apertures centred on the optocentre.

Comet φa [′′] ρ Afρ in different filters [cm]
[103 km] B V R I

32P/Comas Solá 1.16 1.3 60  ±  25 86  ±  19 78  ±  13 95  ±  15
3.48 3.9 98  ±  27 119  ±  17 131  ±  13 157  ±  15
5.80 6.6 93  ±  23 112  ±  14 129  ±  11 154  ±  13
6.38 7.2 91  ±  22 109  ±  14 127  ±  10 151  ±  12
8.70 9.8 ... ... ... ...
10.44 11.7 ... ... ... ...
56P/Slaughter-Burnhamb 1.16 1.4 91  ±  34 97  ±  24 116  ±  21 ...
3.48 4.3 91  ±  23 106  ±  18 123  ±  15 ...
5.80 7.1 78  ±  18 94  ±  15 109  ±  12 ...
6.38 7.8 75  ±  17 91  ±  14 106  ±  12 ...
8.70 10.7 ... 83  ±  12 96  ±  10 ...
10.44 12.6 ... ... 91  ±  9 ...
56P/Slaughter-Burnhamc 1.16 1.4 ... ... 69  ±  14 ...
3.48 4.3 ... ... 103  ±  12 ...
5.80 7.1 ... ... 97  ±  10 ...
6.38 7.8 ... ... 94  ±  10 ...
8.70 10.7 ... ... 86  ±  8 ...
10.44 12.6 ... ... 81  ±  7 ...
78P/Gehrels 2 1.16 1.0 638  ±  98 719  ±  82 742  ±  64 878  ±  81
3.48 2.9 786  ±  95 857  ±  81 954  ±  67 1012  ±  80
5.80 4.8 741  ±  84 811  ±  73 910  ±  61 958  ±  73
6.38 5.2 729  ±  82 798  ±  71 896  ±  60 943  ±  71
8.70 7.2 687  ±  75 754  ±  66 846  ±  55 890  ±  66
10.44 8.7 660  ±  71 726  ±  63 813  ±  52 856  ±  63

Notes. 

(a)

Radius of the photometric aperture.

(b)

Night of 5 Oct.

(c)

Night of 6 Oct.

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