The Ring Nebula appears in the northern constellation of Lyra. It is a prominent example of a planetary nebula. This is a shell of ionized gas expelled into the surrounding interstellar medium by a red giant star, which was passing through the last stage in its evolution before becoming a white dwarf.
This image was taken using an 8" SCT, a Canon 40D DSLR. It is a composite image of 10 x 70sec images at ISO 640 stacked in RegiStax and final processing in Photoshop.
All the photographs here were taken by members using either their own equipment or that of the society. Their work can be found in the Index below under type of object, or the name of the photographer.
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