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Showing results for tags 'caldwell 14'.
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The Double Cluster: one of my favourite objects to observe with an eyepiece in the telescope as photographs rarely do it justice. It isn't possible to capture with my 1500mm scope because of its size and proximity to us so this image was made with the equivalent of a 400mm lens in slightly murky conditions. 16 x 2 minute exposures at 400mm f11 - 800 ISO (32 minutes) 11 x dark frames 8 x flat frames Captured with APT Guided with PHD2 Processed in Nebulosity and Photoshop Equipment: Skywatcher EQ5 Mount Orion 50mm Mini Guide Scope ZWO ASI120 MC imaging and guiding camera Canon 500D DSLR Takumar 70-200mm lens with x2 TeleConverter
The full Harvest Moon was so bright that the sky wasn't dark enough to capture galaxies and nebulae so the best option on the first clear night for weeks was to return to this old favourite. The previous attempt at imaging this cluster was done with a 400mm lens and the result was pretty good but I wanted to see how the 150mm Newtonian handled it and I quite like how so many of the fainter stars came out. However it always looks much prettier through the eyepiece. 32 x 75 second exposures at 400 ISO (40 minutes integration time). 64 x dark frames 31 x flat frames 21 x bias/offset frames (subtracted from flat frames only) Captured with APT Guided with PHD2 Processed in Nebulosity and Photoshop Equipment: Sky-Watcher Explorer-150PDS Skywatcher EQ5 Mount Orion 50mm Mini Guide Scope ZWO ASI120 MC imaging and guiding camera Canon 700D DSLR