Astronomers conduct their research by looking at telescopes and "listening" (if we are talking about radio telescopes). At their disposal are small telescopes, huge observatories and satellites that rotate around the Earth and study types of radiation (such as ultraviolet, x-ray, gamma rays), by which the atmosphere blocks the way to the ground. Astronomers launch telescopes on rockets to investigate the upper layers of the atmosphere (these are rockets equipped with instruments for conducting scientific observations at high altitudes) and on unmanned balloons. Some instruments are also launched aboard spacecraft for deep space exploration.

Astronomers conduct their research by looking at telescopes and listening (if we are talking about radio telescopes)

Professional astronomers conduct research on the Sun and Solar System, the galaxy the Milky Way (in which our Solar system) and General Universe, which lies outside our the galaxy. It should be noted that today many astronomers are engaged in theoretical physics, work with automatic telescopes-robots and therefore are very far from direct observation of the night sky. They may not even know where to look in the sky for this or that constellation (a group of stars, which is named, for example, the Great Bear), which for many people becomes a "dedication" to astronomy. (You must have seen the Great Bucket - asterism - in the constellation of the Big Dipper.) Asterism is a configuration of stars that has been given a name, and which is not one of the 88 known constellations. At present, there are approximately 13000 professional astronomers and hundreds of thousands of amateurs in the world. Many amateur astronomers also make an important contribution to scientific research. Some professional astronomers combine professional employment with teaching and popularizing work. It is significant that, due to the vastness of astronomy as a science, the general category of astronomers is divided into many narrow specialties: for example, cosmologists, planetologists, astrophysicists, astrochemists, astrobiologists, etc.

Astronomers-lovers usually understand the constellations. They study them as landmarks to explore the night sky with the naked eye, and also with the help of binoculars or a telescope. For many millennia, astronomers have received knowledge of the cosmos by simply observing the sky.

Amateur astronomers occupy an absolutely definite niche in the study of the world. Here, in the first place, is the acquisition of personal (including aesthetic) experience, impressions and knowledge. In the second place - the exchange of knowledge and impressions with other amateurs, the organization of communities for joint observations, manufacturing and modernization of tools. There are cases when amateurs managed to make a significant contribution to knowledge about the universe. This includes, for example, the work of an amateur astronomer of the 19th century E. Bykhanov.