How is orbital telescope used in science fiction?2 answers
2024-11-29 12:13
Well, orbital telescopes in science fiction can serve as a crucial tool for monitoring threats from outer space. They might spot approaching asteroids or hostile alien fleets early on. They also could be used to study strange phenomena like black holes up close in fictional scenarios, providing valuable data for the characters to make decisions about further exploration or defense strategies.
telescope astronomyA telescope was an optical instrument used to observe, aim, and measure distant objects. Its angular magnification was generally greater than 1. In a broad sense, it also included astronomical instruments that observed electromagnetic waves invisible to the human eye. It was mostly used in ground observation, astronomical observation, astrophotography, space exploration, and other fields. In 1608, the Dutchman Hans Lieber made the world's first binoculars. In 1609, the first refraction telescope was made by Galilei, and the telescope began to be used in astronomy.
An astronomical telescope was an astronomical observation device that collected celestial radiation and determined the direction of the radiation source. It usually referred to an astronomical optical telescope with light gathering and imaging functions. According to the principle of imaging, it could be divided into three categories: refraction telescope (using a lens to produce a mirror), reflection telescope (using a mirror to produce a mirror), and catadiopretic telescope (using both a lens and a mirror to produce a mirror).
It was not recommended for beginners to buy expensive equipment at the beginning when choosing an astronomical telescope. For example, the price of the more affordable Singterra 80EQ (about 600 yuan) was more suitable for entry. Although it was cheap, it could shoot the three common planets, the moon, M42, and so on. When choosing two products with the same price but different brands and a difference of 1 - 200, the difference was not big for beginners. They could choose the one they liked more. There were many brands of astronomical telescopes, such as Star Terran, Meade, Cinda, Exploration Science, Boguan, etc. Among them, Star Terran was the best-selling. It was recommended to give priority to well-known brands and avoid unknown small brands to avoid stepping on the pit.
The budget astronomical telescope worth buying in 2024 is the Celestron StarSense Explorer DX130AZ.(Price: $379.95, original price: $479.95, 5.1-inch large aperture, 650mm focal length, equipped with StarSense sky recognition technology, etc.), Orion Observer 90mm telescope (Price: $379.95, 90mm objective lens diameter, 86.4cm tube length, comes with two eyepieces), Sky-Watcher Classic 200 (Price: $550.00, original price: $655.00, equipped with 8-inch mirror and other advantages), Celestron 76mm Sign Series Firstscope (Price: $79.70), etc.
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