Titlebook: Exploring the Universe; A Practical Guide fo James Dire Book 2024 The Editor(s) (if applicable) and The Author(s), under exclusive license

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978-3-031-65345-2The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerl

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Explosive

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Claudia N. Keilhauer,Fran?ois C. Delorimirrors to gather light. Catadioptric telescopes contain a combination of lenses and mirrors. Refractors with single-lens objectives suffer severely from chromatic aberration. Doublet objectives, sometimes called acromats, use two lenses to reduce some of the chromatic aberration. Using three or mor

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Microperimetry in Macular Disease,nd CMOS cameras. Simple astrophotography can be conducted using a camera with a wide-field lens mounted on a tripod. Exposure time must be small since the Earth’s rotation causes celestial objects to move. Longer exposures using a camera and lens can be conducted with the camera mounted on a device

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https://doi.org/10.1007/978-3-030-19059-0rsely proportional to the square of its distance. The luminosity of a star depends on its temperature and surface area. Stars are primarily classified by their temperature. A Hertzsprung-Russell (HR) diagram plots luminosity versus temperature for stars. Most stars fall on a swath from upper left to