Pro Astronomical Telescope 114mm Aperture 875X Zoom HD High Resolution variants Whether you're tallying up expenses

Pro Astronomical Telescope 114mm Aperture 875X Zoom HD High Resolution variants Whether you're tallying up expensesThe universe is beautiful and mysterious. Every star light comes from countless years ago. Let's explore the past and future together with children. A little knowledge about astronomical telescopes: 1. Magnification=objective lens focal length eyepiece focal length * multiplier. Although the multiple can be increased by replacing the magnification mirror, the larger the multiple is, the better the image is. 2. The larger the objective aperture of the

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