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Refraction series

Astronomical telescopes usually have two telescopes, the big one is the primary mirror, which is used to observe the target; the small one is called the star-seeking mirror, which is used to find the target, also known as the sight. The eyepiece is a single individual, it is the object that decides the magnification. There will be F value on the eyepiece. This is the focal length of the eyepiece. Dividing the F value of the primary eyepiece by the F value of the current eyepiece is the current magnification. Remember, the magnification rate is the standard. The limit magnification of a 6 cm telescope is about 120 times and that of an 8 cm telescope. The maximum rate is about 160 times.

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AL-80

Size: 80 mm Focal length :500mm (f/6.25) Type of objective lens: three - chip total separation compound achromatic Net weight: 3.10 kg Resolution :1.45 arc seconds Visual limit magnitude :12 Outer diameter of mirror tube :90mm Length of mirror tube (extension) :470mm Total length of mirror tube (indent) :405mm

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AL-90

Size: 90 mm Focal length :600mm (f/6.67) Type of objective lens: three - chip total separation compound achromatic Net weight: 3.40 kg Resolution :1.45 arc seconds Visual limit magnitude :12.3 Outer diameter of mirror tube :90mm Length of mirror tube (extension) :550mm Length of mirror tube (indent) :500mm

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AL-107

Size: 107 mm Focal length :700mm (f/6.50) Type of objective lens: three - chip total separation compound achromatic Net weight: 5.10 kg Resolution :1.09 arc seconds Visual limit magnitude :12.6 Outer diameter of mirror tube :114mm Length of mirror tube (extension) :685mm Total length of mirror tube (indent) :590mm

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AL-130

Size: 130 mm Focal length :860mm (f/6.6) Type of objective lens: three - chip total separation compound achromatic Net weight :7.8kg (excluding hoop, dovetail plate and handle) Resolution :0.88 arc seconds Visual limit magnitude :13.1 Outside diameter of mirror tube :144mm Length of main mirror tube :675mm (see the following list for details) Length of mirror tube (extension) : add two short tubes "945mm/ add one short tube "885mm/ without adding two short tubes "825mm Length of mirror tube (shrinkage) : add two short tubes "795mm/ add one short tube :735mm/ unadded two short tubes :675mm

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—— ABOUT ——

Jiaxing Ruixing Optical Instrument Co., Ltd. is located in Jiaxing City, Zhejiang Province, where the scenery is beautiful and outstanding. The company covers an area of 1,000 square meters and is close to the expressway and 320 National highway. The traffic of the high-speed railway station is very convenient. Founded in 2000, the company is a modern company specializing in the design, manufacture and sales of medium and high-end astronomical telescopes, ground observation telescopes and their peripheral supporting products. OEM has more than 10 years of experience in OEM OEM OEM production, during which to build high-quality, high-level astronomical telescope series products for foreign customers. The three-piece and four-piece high achromatic ED telescope optical tube produced by the company has high quality optical level, high precision mechanical processing and excellent surface treatment, and is well received by customers.

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How far can a telescope see?
People who are new to telescopes often wonder, "how far can this telescope see?" "And" how much larger can this telescope be? "And" how big can this telescope hold the stars in the sky? Etc. How far can a telescope see? The parameter used to indicate the telescope is not the distance, but the magn...

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OEM has more than 10 years of experience in OEM OEM OEM production, during which to build high-quality, high-level astronomical telescope series products for foreign customers.

Development and introduction of astronomical telescopes