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The aperture of a telescope is the most important measurement. The diameter of the lens at the top of the tube is measured by aperture with refractors. This is the light-collecting lens.
The aperture of a telescope is the most important measurement. The diameter of the lens at the top of the tube is measured by aperture with refractors. This is the light-collecting lens.
Galaxies are among the furthest objects that mankind can see. While most planets, stars, and nebulae are relatively close to us, we can see galaxies millions of light-years away. With a 4-inch telescope, you can usually only view the centre of a galaxy, even if it is very brilliant.
SKU: CH-5447
1.50H 5.30W 7.30D
SKU: OM-135
2.30H 15W 2.30D
SKU: CH-6202
0.75H 8.30W 3.30D
SKU: OM-134
1.50H 15W 1.50D