Common questions

How much distance we can see with telescope?

How much distance we can see with telescope?

The Hubble Space Telescope can see out to a distance of several billions of light-years. A light-year is the distance that light travels in 1 year.

What is a good magnification for a telescope to see planets?

Experienced planetary observers use 20x to 30x per inch of aperture to see the most planetary detail. Double-star observers go higher, up to 50x per inch (which corresponds to a ½-mm exit pupil). Beyond this, telescope magnification power and eye limitations degrade the view.

What can you see with a 150mm telescope?

150-180 mm refractors, 175-200 mm reflectors and catadioptric telescopes:

  • binary stars with angular separation of less than 1″, faint stars (up to 14 stellar magnitude);
  • lunar features (2 km in diameter);
  • Clouds and dust storms on Mars;
  • 6-7 moons of Saturn, planetary disk of Titan may be observed;
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How far can a telescope zoom in?

These optical aids sit between an eyepiece and the scope, and will typically double the magnification of the eyepiece. There’s a limit, however, which as a rule is: a telescope can magnify twice its aperture in millimetres, or 50 times the aperture in inches.

How powerful does a telescope have to be to see the rings of Saturn?

25x
The rings of Saturn should be visible in even the smallest telescope at 25x [magnified by 25 times]. A good 3-inch scope at 50x [magnified by 50 times] can show them as a separate structure detached on all sides from the ball of the planet.

How big of a telescope do you need to see Saturn rings?

The rings of Saturn should be visible in even the smallest telescope at 25x [magnified by 25 times]. A good 3-inch scope at 50x [magnified by 50 times] can show them as a separate structure detached on all sides from the ball of the planet.

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What can you see with 76 700 telescope?

With the National Geographic 76/700 Mirror Telescope AZ, you can look at objects like the moon or constellations. Thanks to the telescope’s mirror, you can observe far-away, bright planets. You can use the 3 eyepieces to zoom in deeper on your subject, so you can look at details such as craters.

How can NASA see light-years away?

Thanks to a Gravitational Lens, Astronomers Can See an Individual Star 9 Billion Light-Years Away. When looking to study the most distant objects in the Universe, astronomers often rely on a technique known as Gravitational Lensing. This technique has allowed for the study of individual stars in distant galaxies.

How do I know what size of my telescope I have?

Most of these numbers can be found on your eyepiece barrel, on your telescope’s tube or mount, or in the equipment’s instruction manual. Failing that, you can always visit the website of your telescope or eyepiece manufacturer. Scope Aperture: The diameter of a telescope’s main lens or mirror — and the scope’s most important attribute.

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What objects can be seen through a 90mm telescope?

Also, all of the Messier objects, although most galaxies will remain relatively featureless hazy patches. This is an example of Mars as seen through a telescope with a 90mm aperture. As you can see, it’s definitely visible, but not at the greatest of detail. This is Jupiter with a 130mm aperture.

What is the maximum magnification of a telescope?

As a rule of thumb, a telescope’s maximum useful magnification is 50 times its aperture in inches (or twice its aperture in millimeters). True Field of View: The circle of sky that you see when you look through a telescope or binoculars.

How big of a telescope do I need to see Jupiter?

130mm (5in) to 200mm (8in) or equivalent. With telescopes like the Celestron Nexstar 6 SE Computerized Cassegrain Telescope, which has a 6 inch aperture size, you’ll be able to see things like Jupiter in greater detail.