Derby and District Astronomical Society

Caldwell 47 (NGC 6934)

Globular Cluster in Delphinus      RA 20h 34m 11s  Dec +07° 24' 16"




Mike Lancaster captured this image of Caldwell 47 on the 21st August 2023. The image comprises 65 x 20s exposures taken using an Altair Hypercam 26C at 100 gain (plus darks, flats and flat darks), through an Orion Optics UK AG12 Astrograph mounted on an EQ8 mount. A 0.95x Wynne Corrector and Astronomik CLS-CCD filter were also employed. No guiding was used on account of the short exposures. Images were acquired using SharpCap, and the processing was entirely performed in PixInsight.   Image Credit: Mike Lancaster.




This image of Caldwell 47 was taken by Mike Lancaster on the 11th October 2014. It comprises a stack of 5 frames each of 2 minutes exposure taken with a Mallincam Xtreme X2 at AGC2 through a 10-inch Meade LX200 ACF on an NEQ6 Pro mount using an MFR-5 focal reducer. Setup was guided using a Lodestar guide camera on a piggy-backed 80mm APO. Image capture was using Miloslick Mallincam Control, stacking and processing in Nebulosity with further processing in Photoshop Elements.   Image Credit: Mike Lancaster.




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