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Table 1

NOT narrow-band observations.

Date Filter Number of Frame Total
frames exp. time exp. time
(s) (s)

August 2005 Hα 2 300 600
August 2005 [N ii] 2 300 600
August 2005 [O iii] 1 300 300
August 2008 Hα 2 450 900
August 2008 [N ii] 2 450 900

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