Professional Telescope

 The astronomical telescope is the most basic instrument of astronomy, 

and it is also a necessary observation tool for the majority of astronomy popularization workers and astronomy lovers.

    According to the structure of the objective lens, the optical system of 

the astronomical telescope can be roughly divided into three categories: 

the lens as the objective lens, called refracting telescope; Using a mirror 

as an objective lens, called a reflecting telescope; A telescope that contains 

both a lens and a mirror is called a reflector. Some astronomy enthusiasts 

often buy a lens, thinking that this solves the objective problem of the telescope. 

In fact, one lens imaging will produce aberration, now, the normal refraction

 telescope objective is mostly composed of two to four lenses. In contrast, 

refraction telescopes are widely used and easy to use, so they are more suitable for astronomical popularization. ,

    If you are a beginner, we recommend:Telescopes for Adults Astronomy

    In the astronomical observation object, some celestial bodies have the 

apparent plane, some have no discernible apparent plane; Some celestial

 bodies are extremely bright, and some are very weak; Some shine on their 

own, some reflect light. Observers should choose different telescopes or 

adopt different methods for observation according to the purpose of observation; 

Generally speaking, the universal astronomical observation belongs to the comprehensive, 

we should consider the "multi-purpose of one mirror". When choosing an astronomical telescope, it is important to fully understand its basic optical properties.