In other reflector telescopes, the eyepiece is somewhere along the length of the tube. In some cases, the eyepiece is at the end of the telescope. Most of the major optical telescopes astronomers use in observatories are reflectors. A reflector uses one or more curved mirrors that reflect light and form an image.
A refractor is a long tube with an eyepiece at one end and a lens at the other end. The two broad types of telescopes are reflectors and refractors. A larger aperture helps you see dimmer objects. How dark is your sky? Aperture size determines the amount of light you capture.Will you travel with the telescope? Refractors can be long, while reflectors can be wide and heavy.How much storage space do you have? Consider the footprint of the telescope.Do you plan on taking pictures? All telescopes can accept a camera mount, but you’ll want a scope that tracks if you plan on taking long exposures.Are you willing to do maintenance? Reflectors require cleaning and collimation, while refractors are enclosed and pretty maintenance-free.Reflectors shine for viewing near objects, while refractors excel at deep sky imaging.
Refractor images are right side-up, but they have chromatic aberration (fringes). Reflector images are upside-down and may suffer spherical or coma aberration (tiny round objects don’t look round). What do you want to look at? Pretty much any telescope works great for viewing the Moon, planets, galaxies, nebulae, and clusters.What is your price range? A good telescope ranges anywhere from a couple hundred to several thousand dollars.There are no right or wrong answers, but once you identify your needs you’ll have an easier time choosing a telescope.
Difference between refractor and reflector telescope how to#
How to Choose a Telescope for Your Needsįirst, you need to answer some questions. In particular, learn about the difference between reflectors and refractors and the types of telescope mounts, as well as their pros and cons. Here are tips and questions you need to answer before you buy. Telescopes are not inexpensive, so you want the best instrument for your needs. If you’re wonder how to choose a telescope there are a lot of factors worth considering. There are several factor that go into choosing a telescope, but the biggest decision is whether to get a reflector or refractor. This entry was posted on Octoby Anne Helmenstine (updated on November 29, 2021)
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