What books and equipment should I buy if I want to study astronomy systematically? How?

An introductory book can be found in the Astronomer's Handbook, which is of great help to a beginner. For others, I recommend the magazines Constellation and Greek Myth, Encyclopedia of China, Astronomical Volume and Astronomer. Everything is fine.

In terms of telescopes, ordinary astronomical telescopes can look at deep space objects. But even if you see it, it is just a small and fuzzy white dot. But dealing with celestial bodies in the solar system is not a big problem. But it is also limited to sunspots, lunar craters, Venus' profit and loss, Jupiter's four Galileo satellites and Saturn's rings. Mars can hardly even see a clear circle. Generally, it takes 1000-2000 to buy an old telescope. In addition, astronomical telescopes have very high requirements for the environment they use. In the absence of light, moonlight, sunny weather and wind, it takes more than 1 hour for human eyes to adapt to the darkness in order to give full play to the function of the telescope. Otherwise, you can only see the most basic astronomical phenomena like the moon surrounding mountains. Don't be fooled by the extreme magnitude of telescope design, it is generally difficult to bring the function of telescope into full play. Personally, reflection is better than refraction, but the price is more expensive. The biggest advantage of reflection over refraction is that there is no color difference. Because visible light is composed of light with different wavelengths, light with different colors will converge at different positions due to different refractive indexes after refraction, which is chromatic aberration, while reflected light does not have this disadvantage, because all light obeys the same reflection law. However, there are coma and spherical aberration in reflection type, and the edge of mirror image will be deformed. In addition, the astronomical telescope also has some auxiliary facilities, such as equatorial telescope, star finder, filter, camera interface, magnifying glass and so on.

Among the domestic mirrors, Guan Bo, Daguan and Sirius all have a good reputation.