Category Archives: Star Clusters

Globular star clusters and open star clusters Astrophotography by Shawn Nielsen

M13 first light with Esprit 100 triplet refractor

M13 globular cluster imaged with an Esprit 100 triplet and ASI1600mm-c
So I finally had some clear skies to collect some data using the new Esprit 100 triplet refractor. This data was taken without the use of the field flattener that comes with the telescope. I have to get a custom spacer/adapter manufactured in order to attached my camera/filter wheel to the field flattener. That is [...]

Globular Star Cluster Omega Centauri NGC 5139

Omega Centauri NGC 5139

This image was published in Skynews Magazine (Canada), Nov/Dec 2016 issue. A spectacular globular star cluster of the southern hemisphere, Omega Centauri NGC 5139 is located in the constellation of Centaurus and was first identified by Edmund Halley (of Halley’s Comet fame) in 1677. We’re starting to have more clear nights here in southern Ontario […]

M11 The Wild Duck Cluster

M11 The Wild Duck CLuster. Shawn Nielsen Sept 2010

Continuing my learning curve with astro-imaging. This was a short run on the Wild Duck Cluster, M11. located near the constellation Scutum. M11 is an open cluster, also called a galactic cluster. It contains thousands of stars. The stars in M11 are believed to have formed together about 250 million years ago. Bright young stars […]

M45 The Pleiades Star Cluster

M45 the Pleiades star cluster. Shawn Nielsen, 2010

One of my first images of M45 The Pleiades Star Cluster with the Skywatcher Equinox 80mm ED APO refractor. Just 2 hours and 20 minutes of data. The Pleiades are a prominent sight in winter in the Northern Hemisphere, and are also known as the Seven Sisters. This is an impressive image for me because […]