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Markarian's Chain in Virgo, 19th June 2009. Pentax 105SDHF and AP0.67 FR, focal length = 469mm
Luminance 6 x 300secs, Red 3 x 300secs 2x2, Green 3 x 400secs, Blue 3 x 600secs (Total = 1.28 hours)
Full size (2184 x 1472 pixels)(1.6 Mbytes)