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Andy | all galleries >> Deep sky astrophotos >> Dark gecko on starry sand > NGC6540 - Djorgovski 3
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29-May-16 Andy Casely

NGC6540 - Djorgovski 3

Loftus, NSW

One of the hidden globular clusters - NGC6540. It was only fairly recently reclassified as a globular after cataloguing by Djorgovski in 1987. A 1994 paper by Bica et al puts this cluster at about 11,500 light-years away, and the mass of Galactic Bulge stars in the background closer to 24,000 light-years distant. 100% crop.

Canon EOS 60D
26 x 5 minutes (2hr 10min), ISO800, EOS 60D, darks, flats and bias subtracted. 200mm f/5 Newtonian on HEQ5 pro mount, OAG & StarShoot Autoguider. Stacked and processed in PixInsight and Photoshop. full exif

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