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Table 2

Observation log of selected clusters.

Cluster Date Exposure Total S/N
(s) (5200–5500 Å)

NGC 1696 Dec. 13, 2009 2 × 2700 32
Dec. 14, 2009 2 × 2700
Dec. 11, 2012 2 × 3600
NGC 1897 Dec. 21, 2009 3 × 1800 31
NGC 1905 Dec. 18, 2009 4 × 1800 24
NGC 2166 Dec. 18, 2009 1 × 1500 30
1 × 1800
Dec. 19, 2009 2 × 1800
NGC 2181 Dec. 20, 2009 2 × 1800 30
Dec. 21, 2009 2 × 1800
NGC 2197 Dec. 17, 2009 2 × 1800 16
Dec. 18, 2009 1 × 1800
Dec. 14, 2012 1 × 3600

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