Derby and District Astronomical Society

Messier 13 (NGC 6205)
The Hercules Cluster

Globular Cluster in Hercules      RA 16h 41m 42s  Dec +36d 28m 00s

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This image of M13 was captured by Adrian Brown on the nights of the 23rd and 24th of May 2009. The image data consists of 16 x 4 minutes Red, 16 x 4 minutes Green and 18 x 4 minutes Blue using Astronomik RGB filters, a Skywatcher 80ED refractor (reduced to 480mm focal length with a William Optics 0.8x focal reducer) and an Atik ATK16HR CCD camera. The image data was stacked and calibrated in Maxim DL 4.53, aligned with Registar and processed in Photoshop CS2.



Chris Newsome took the following image of M13 on the 2nd June 2006. He used a Canon EOS300D camera through a Celestron C8-NGT telescope using a CLS filter. This set up was autoguided with a Meade DSI through a Skywatcher 80T refractor using MaximDL. The image is composed of ten 120 second exposures at 800 ASA, which were calibrated in MaximDL and then processed in CS2.



The following image of M13 in Hercules was taken by Simon Allcock, Adrian Brown and Chris Newsome on the evening of 7th/8th June 2005. It was taken through Simon's 8" LX90, with Chris' Meade Deep Sky Imager and Adrian's 0.5 focal reducer! The image was processed using Registax and Photoshop.



Chris Newsome took the following picture with his new Meade Deep Sky Imager on the 6th June 2005.



Chris Newsome took the following two images of globular cluster M13 on the 11th May 2005 using a Meade DSI camera and a Celestron C6-Newtonian.



Adrian Brown took the following image of the globular cluster M13 in Hercules on the 10th April 2005. He used a Celestron C11 at F3.3 and an ATK-1C camera. The image is a composite of 2 thirty second exposures stacked in K3CCD Tools and the image was dark frame adjusted to remove 'hot' pixels. Final processing was performed in Photoshop to convert the image to greyscale and remove some background sky glow.



This image of the globular cluster M13 in Hercules was taken by Adrian Brown under the dark skies of Madog's Wells in Powys, Wales on the 1st April 2005. He used a 5 inch Celestron NexStar SCT at F6.3 and an ATK-1C camera. The image is a stacked composite of 3x 30 second exposures which were combined in K3CCDTools.

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