Picture of the Week

Picture of the Week this time is Messier 45, the Pleiades star cluster in Taurus with the associated (blue) reflection nebulosity, and the (brown) Taurus molecular cloud.

This is 18-hours worth of 40-minute subs taken with the 3 x Sky90s and 3 x M26C OSC CCDs on the MiniWASP array.

I added 6-hours of data to the existing 12-hours to get the current 18-hours and saw very little (approaching zero) improvement over the 12-hours of exposure time. I am therefore well within the diminishing returns region, and I’d only start seeing ANY improvement by probably going to something like 36-hours of exposure time. That being the case I can safely say that for my location, this is about the best I am going to do, and this therefore is another completed object.

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