astronomical telescopeYou might want to ask about the catadioptical telescope. The catadiopretic telescope was an optical telescope with an objective lens that combined reflective and reflective elements. It added a refraction element to correct aberrations on top of a spherical mirror. This kind of telescope had the characteristics of a large field of view, a large focal ratio, and a relatively good image quality. It also combined the advantages of a refraction mirror and a reflection mirror, such as a large field of view, good image quality, a short tube, and easy to carry. However, it also had shortcomings such as relatively high cost and difficult maintenance.
The light was first bent through a lens, then reflected and focused by a mirror. In 1931, the German Schmidt invented the optical system of the Schmidt telescope by placing an aspheric thin lens in front of the spherical mirror. Later, the Schmidt-Cassegrain telescope, which was based on the Schmidt star camera and used the Schmidt correction plate to correct spherical aberrations, appeared. The Soviet scholar, Marksutov, used a crescent-shaped lens as a correction lens to create the Marksutov-Cassegrain telescope and other types.
There were many brands of catadioptical astronomical telescopes on the market. For example, the Boguan 150/1800 catadioptical astronomical telescope EM10 equator instrument version used a high-performance, high-quality three-piece Marksutov-Cassegrain system. It was composed of a crescent mirror and two spherical mirrors. The image was clear, the contrast was high, and the color difference was effectively controlled. It could be used for deep space observation and to appreciate the details of the moon and planets. Meade's Schmidt-Cassegrain catadiopretic telescope was also well received, and Takahashi's FSQ series of photographic lenses were specially designed for astronomical photography, of which the FSQ85 and FSQ106 were both highly praised.
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Astronomical applicationsAstronomy had many applications. He could conduct astronomical observation and astrological research in government and public institutions, and engage in research, teaching, and popular science in scientific research institutions, universities, planetariums, and aerospace agencies. There were also applications in emerging fields such as satellite navigation and space exploration. Its scientific and technological developments were widely used in people's daily lives in the fields of optical and electronics, such as personal computers, communication satellites, mobile phones, global positioning systems, solar panels, and magnetic resonance imaging scans. The time, direction, and calendar used by humans today were also applications of astronomical research results.
Astronomical MeteorologyThe pronunciation of astronomical and meteorological miscellaneous accounts was tiān wén qīxiāng zāzhān.
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Astronomical novelsI recommend a few novels. " From the Undesirable to the Unconquerable Heavens " was a novel written by Chestnut Ah-Tang. The male protagonist, Shen Yu, could travel through the world, and every time he traveled, he would have a random cheat. After the end of the bad people's world, you will receive a god-level selection system, as well as super interesting options and rewards. There were also different systems in the later worlds such as Battle Break, Douluo, Celestial Bane, and Devour the Starry Sky. The main character was not a good person, and his moral bottom line was very flexible.
'The Starry Sky of Elemental Energy', a science fiction novel by Niu Jiaichiro. The story revolved around the fall of a star warrior on Earth, and there was also the guarantee of his previously completed high-quality novel. However, the comments were mixed. Those who liked his style would keep following him, while those who didn't like him would quickly abandon the article.
" I'm Drawing Manga in Tokyo ", a light novel written on a seaside trip. The main character, Seiji Tachibana, traveled to Japan in the year 2000 and became a full-time mangaka for " Weekly Shonen Jump." He chose to follow in the footsteps of the anime era in the era of the kingly manga, and he had published many well-known manga.
" Muddy Sky Star Lord " was a science fiction novel written by the Great Dao. The protagonist, Zhang Heng, started a different life after waking up from a dream. He wanted to create an immortal legend in the vast galaxy.
" Back to the Heavens " was a novel written by a star-gazing dog. The earth became bigger and more dangerous due to the recuperation of spiritual energy. The protagonist awakened his supernatural ability to travel through the myriad worlds. The evaluation was that the writing was solid.
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Ancient Astronomical ConceptsAncient people's astronomical views could be traced back to thousands of years ago. They understood the mysteries of the universe by observing and recording the astronomical phenomena. The following are some of the ancient people's astronomical views:
1. Egyptians: In ancient Egypt, people used sundials to measure time and to infer the positions of the seasons and stars by observing the positions of the sun and the stars. They also regarded the sun and moon as the incarnations of gods and goddesses.
Ancient greeks: the ancient greeks regarded the sky as a universe, including planets, stars, comets and other celestial bodies. They used astronomical instruments to observe and record the weather, such as sundial and telescope.
3. Ancient Rome: In ancient Rome, people used sundial and astronomical instruments to observe and record astronomical phenomena. They also regarded the sun as the embodiment of the gods and goddesses and believed that the sun would guide people to progress and success.
4 Indians: The ancient Indians regarded the sky as a universe, including planets, stars, comets and other celestial bodies. They used astronomical instruments to observe and record the weather, such as sundial and telescope.
5. Japanese: The ancient Japanese used astronomical instruments such as sundial and telescope to observe and record astronomical phenomena. They also regarded the sun as the embodiment of the gods and goddesses and believed that the sun would guide people to progress and success.
The ancient people's astronomical views not only included the observation of the stars and the sun, but also the understanding of the structure of the universe and the laws of its operation. These observations and records provide us with valuable knowledge to better understand the mysteries of the universe.
Floating Astronomical NetworkThe Floating Astronomical Network was a website that provided online reading of original novels. The website was established in January 2005 and was once a well-known website for reading original novels in China.
In June 2015, due to the vulgar content involved, the Floating Astronomical Network was shut down by the relevant departments.
Starburst Astronomical telescopeThe Singtron Astronomical telescope was a professional stargazing device with multiple models to choose from. Two of the entry-level models were the Singtron 80EQ and the Singtron 127Slt. The Starlight 80EQ was a telephoto refraction telescope with a diameter of 80mm and a focal length of 900mm. It was suitable for observing bright celestial bodies such as the moon and Jupiter. It was equipped with the EQ1's equator mount and had a full range of accessories, including eyepieces, star-seeking mirrors, and zenith mirrors. It could also be used with mobile phones and cameras. The Singtron 127slt was an automatic star-finding telescope. It was portable and reliable, suitable for beginners. This telescope was a catadiopretic Marka with a diameter of 127mm and a focal length of 1500mm, allowing more details to be observed. As for which telescope was better, it depended on the individual's budget and needs. Singlar's product prices ranged from entry-level to professional, so consumers could choose the right model according to their budget and needs.
Astronomical explanation of novelsThe following are some astronomical explanations related to the novel:
- The concept of parallel universes was often mentioned in science fiction, such as the book Parallel Universe. The concept of parallel universes was well-known because of the popularity of science fiction.
- "Pale Blue Dots" was a book with deep content. It was based on a photo taken by Voyager 1 5.9 billion kilometers from Earth. The Earth in the photo was just a small dark blue dot. The book used romantic words to describe the story of human exploration of the sea of stars.
- The minimalist history of the universe talked about the quantum world, antimatter, and multi-dimensional space from the explosion of the sun five billion years later. The author used vivid stories and easy-to-understand metaphor to explain the knowledge points, so that readers could easily understand astronomical knowledge such as the moon might be a fragment of the earth, the center of the Milky Way might be a black hole, and the stars they saw were what they looked like years or hundreds of years ago.
- Astronomical Lectures started the journey of astronomy with Kenji Miyazawa's poems and fairy tales. The author was Yoshiaki Taniguchi. In the book, he used personification techniques to give human characters to the galaxies, explaining the "clothing, food, shelter, and transportation" of each galaxy. For example, the "house" of the galaxy was a vast area surrounded by the "dark matter halo", and the "clothes" were the mysterious "dark matter halo". There was a phenomenon of "cannibalism" between galaxies similar to big fish eating small fish, and the love and marriage of galaxies depended on gravity.
- There was a set of books called Bruno's Exploration of Astronomy (including Bruno and the Big Bang and Bruno and Light). From the perspective of an 8-year-old child, Bruno, he explored the mysteries of the universe in interesting stories, such as understanding atoms, the cosmic calendar, and the Big Bang through Bruno's magical glasses, and exploring the secrets of light with the help of a telescope.
- "Popular Astronomy" was a popular science classic that had been selling for a hundred years. The language was easy to understand, beautiful, vivid, and had a rigorous professional interpretation. The content of the book covered everything from telescopes to aliens, including whether Mars was suitable for human survival, the direction of comets, the formation of black holes, the Big Bang, and other astronomical knowledge.
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Information on astronomical knowledgeI recommend a few novels. " The Age of All People's Doppelgangers ", a supernovel about urban special techniques written by my favorite food grape. The Blue Star Civilization changed its direction due to an accident. Everyone's souls traveled through the apocalyptic world. They had avatars and awakened their professions to obtain super abilities. The male protagonist, Xing Lan, was a 22-year-old university student who awakened the highest level profession to open the path to the strong. There were also female protagonists, Situ Yujing, and female supporting characters, Xing Xiaoyu, with their own unique characters.
" The Omnipotent Supervisor " was Mu Huanren's urban entertainment star novel. The story was inspirational. The book list commented that this was a new book by a Korean entertainment boss. The style was familiar, and it was related to filming movies in the United States.
" My System Is Too Good at Sucking Up ", a fantasy high-level martial arts novel written by Niu Tuochong. Gao Yuan had transmigrated to a modern city where monsters were wreaking havoc. There was an indecent system. The system praised him and rewarded him in all kinds of states. He could not help but complain.
" I'm Drawing Manga in Tokyo ", a light novel written on a seaside trip. Seiji Tachibana traveled to Japan in 2000 and became a full-time mangaka for Weekly Shonen Jump. He had his own unique choices in the era of Kingly manga.
" Otto: This Leonicus Can't Be Stable " was a novel written by Pikachu Love Power Generation. Su Xun came to the world of Morbius and found an interesting story about Ray Brando who only knew how to draw cakes.