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In the recent past, astrophotography has been revolutionised by numerous new, digital photographic devices and their corresponding software, often dedicated to very specialised tasks in astronomy. This chapter is an attempt to give a brief overview of todays most relevant imaging tools (e.g. CMOS-based DSLR, traditional SLR, cooled CCD, webcam, CCTV-camera), and how they are applied to the main tasks...
Notes on stellar colors spectral types, and physical quantities of stars are followed by cataloging of variable stars and their classification. The group of eclipsing binaries is described in the section of binary stars. Methods and tools for observing and for the calculation of binary star orbits are outlined. Finally there are informations on the Milky Way, the Galactic Nebulae, Globular Clusters,...
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