The Hubble Space Telescope (HST) is the first space telescope of mankind. It has a total length of more than 13 meters and a mass
Maybe you just bought a brand new telescope, congratulations! You can begin to discover many wonderful, distant, and profound things in the night sky. Although
Purchase: Optical quality and lightweight appearance are often contradictory. If you want both, you need to greatly increase your budget. Each type of telescope has
Direct light will destroy the image presented in the telescope. In order to enhance the visual image, the lens and prism need to be coated
The abbreviation of the English letters of the telescope sometimes has different meanings in different telescope brands. Generally speaking, the following are easy to identify:
7. Prism type: roof prism, Porro prism 8. Prism material There are two types of prisms commonly used in telescopes: bak-4 and bk-7 prisms. BAK-4
1. Objective lens diameter The diameter of the telescope is the diameter of the lens of the telescope. The telescope model generally clearly indicates the
A telescope is a visual optical instrument used to observe distant objects. It can magnify the small opening angle of distant objects at a certain
A telescope is an optical instrument that uses lenses or mirrors and other optical devices to observe distant objects. The light passing through the lens
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