The minimum angular size of an object visible through a telescope (its “resolving power”) is determined by the size of the lens and the properties of the earth’s atmosphere through which the star’s light passes. The wave nature of light makes even a perfectly point source visible through a telescope as a disk surrounded by a system of rings. The larger the diameter of the telescope objective, the smaller the size of this disk, but even for large telescopes it is about 0.1 arc seconds. In addition, the image is blurred by the Earth’s atmosphere, and the size of the “jitter” disks of stars is rarely less than one arc second. The true angular diameters of distant stars are much smaller, and we cannot see them through a telescope, no matter what magnification we use.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.