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Table 6
Yearly averages of the instrumental colour V−RInstr. for the two lensed components of quasar HE 0047-1756.
| 2008 | 2009 | 2010 | 2011 | 2012 | |
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| (V−R)Instr.A | −0.04 ± 0.02 | −0.11 ± 0.01 | −0.08 ± 0.02 | −0.07 ± 0.01 | −0.08 ± 0.01 |
| (V−R)Instr.B | 0.00 ± 0.03 | −0.07 ± 0.04 | −0.04 ± 0.05 | −0.03 ± 0.05 | −0.04 ± 0.04 |
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