![]() Many stargazers start on the planets but then move onto to the wider universe. This is great for deep space viewing or long-form viewing of objects such as galaxies, star clusters, and nebulas, which is a big draw for most people. Many people prefer a lower focal ratio for their telescopes as that gives a broader, more expansive view when stargazing. A focal ratio of f/10 or larger is considered a high focal ratio and will give a narrow clear field of view. A focal ratio is a number denoted by f/x, with x being the ratio number. Is obtained by the telescope during normal viewing.Ī higher focal ratio means a narrow field of view and a sharper image within that field. The focal ratio determines how wide a field of view Ratio is a number devised by dividing the focal length by the diameter of the The planets, the focal ratio is much more important than magnification. What is important for viewing the planets? An Important Formula: F/x To it than simply magnification and light gathering ability. ![]() Larger telescopes with a lot of magnification power can have lower focal ratiosĪnd, therefore, lower overall quality for objects like planets. The planets is the most important goal of purchasing a telescope. Or fanciest telescopes do not necessarily need to be considered if looking at This means that the largest, most expensive All telescopes advertise that they can see the rings of Saturn and the bands of Jupiter and so on, and this is true of almost all telescopes because any decent telescope should be able to see our closest neighbors with relative ease. This closeness means that a large telescope is not required to get a good view of them. They are like our siblings in that there is nothing that can be as similar or as close to Earth as the planets in our solar system. ![]() The planets are the closest things to Earth in the whole universe. Buy on Amazon Planetary Logic: Bigger Is Not Always Better
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