Great Hercules Cluster with spikes
Great Hercules Cluster with spikes, originally uploaded by ThinkingCamera.
Although it is a nice, bright object, M13 is quite difficult to image. There are lots of small faint stars next to much brighter ones. As well as my usual processing with Maxim and Photoshop, I used the Starspikes Pro 2.0 plugin.
I do not like how Flickr has reprocessed this image, but it is convenient for publishing.


