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General Information
- Star Clusters: The SEDS information page;
Sky & Telescope observing guide.
- Messier Objects: The SEDS Messier database.
- NGC Objects: Benoit Schillings photographs.
Open Clusters
- Information: seds.org page;
Wikipedia page.
- Photographs: Visual deep-sky astronomy site.
- Special Clusters: Perseus Double Cluster Kaler
and seds.org
pages; Steven Gibson's Pleiades page.
Globular Clusters
- Information: seds.org page;
The Globular Cluster Page;
Number
and list
in Milky Way.
- Age: Dartmouth College information page.
- Photographs: Visual deep-sky astronomy site.
- Specific Globular Glusters: Omega Centauri (NGC 5139)
page;
Jan Wisniewski's Palomar globular cluster page.
- In Other Galaxies: Review article "Formation
scenarios for globular clusters and their host galaxies"
by Stephen E. Zepf, astro-ph/0107297.
More Technical References
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