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The Two Micron All Sky Survey at IPAC website provides an image gallery of the solar system's objects, Jupiter's moons, H II regions, star formation regions, and reflection nebulae, open star clusters, globular star...
This website contains basic information about Galaxy Clusters and their properties. Includes a brief explanation on how to apply the Virial Theorem to calculate a Cluster's Mass, and how the Theory of Dark Matter...
This site from NOVA and PBS provides a simulation of the identification of elements in a star, a nebula, a planet, and a galaxy. The interactive resource allows a user to match individual spectral lines of seven...
This website is dedicated to the amateur astronomer interested in Deep Sky Object Observation. It begins by explaining how these objects are divided into different types, mainly nebulae, and how they are classified,...
This website allows the user to to create and view simulations that show the evolution of stars on a Hertzsprung-Russell (HR) diagram. The site provides tutorials on: how to use the website, H-R Diagrams, and stellar...
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