Why are refractors better for planets?

Refractors tend to work well on planets, if they are good optically, because of the following factors: No central obstruction (secondary mirror) means better contrast for a given aperture. Refractors don’t need such high optical quality to work well (see section on optical quality).

Then, Why are refractors better for astrophotography? If you are interested in astrophotography, purchasing a refractor is a better option because of it’s specialized optic design that captures deep space objects like galaxies and nebulae. If you are interested in brighter celestial objects like the Moon or planets or a beginner, a reflector telescope is ideal.

Are reflectors better than refractors? Refractors generally have the edge over reflectors for a quality image, both from the standpoint of lens/mirror quality and precision optical mountings, and lack of central obscurations. Equally important in a choice of telescope type is the focal length and the resulting field of view.

Keeping this in view, Are Newtonian telescopes good? Newtonian reflectors are great all-around scopes, offering generous apertures at affordable prices. They excel for both planetary and deep-sky viewing. Of course, the larger the aperture, the more you’ll see.

What magnification do I need to see the rings of Saturn?

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.

What size telescope do I need to see the rings of Saturn? 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.

Is a Newtonian telescope good? Newtonian reflectors are great all-around scopes, offering generous apertures at affordable prices. They excel for both planetary and deep-sky viewing. Of course, the larger the aperture, the more you’ll see.

Do you need an equatorial mount for astrophotography? To do serious long-exposure astrophotography, you are going to need a good German equatorial mount that has gears and motors in both axes, and altitude and azimuth adjustments for precise polar alignment. You will also need a solid tripod or pier.

Is Hubble a reflecting telescope?

Hubble is a Cassegrain reflector telescope. Light from celestial objects travels down a tube, is collected by a bowl-like, inwardly curved primary mirror and reflected toward a smaller, dome-shaped, outwardly curved secondary mirror.

Is 70mm good for telescope? However, a 70 mm refractor (which collects 36% more light than a 60mm telescope) is considered by many amateur astronomers to be the minimum size for a good quality beginner refractor telescope. It is acceptable for observing bright objects like lunar details, planets, star clusters, and bright double stars.

Did Isaac Newton invent the reflecting telescope?

Isaac Newton (1642-1727, F.R.S. 1672, P.R.S. 1703-1727) is generally I credited with the invention of the reflecting telescope, having conceived the idea in 1666* (1, 2, 3).

Is Dobsonian same as Newtonian? Both the Newtonian and Dobsonian telescopes are basically the same thing. The only difference is, Dobsonian telescopes have some extra features than the Newtonian ones. We can say, Newtonian telescopes with some extra specific features like altazimuth mount, thing mirrors, etc. make up the Dobsonian telescopes.

Which is better Newtonian or Cassegrain telescope?

Newtonians are better for viewing deep space objects. Maksutov-Cassegrains are better for observing planets and the Moon. Newtonians are better backyard telescopes.

What is the difference between Dobsonian and Newtonian?

The answer is that Dobsonian and a Newtonian can actually be the same thing. A Newtonian refers to the telescope optics, whereas a Dobsonian refers to Newtonian telescope with some specific features like an altazimuth mount and often thin mirrors. A telescope can be a Newtonian and also a Dobsonian at the same time.

How big of a telescope do I need to see Pluto? Observing Pluto is the ultimate challenge. It is smaller than Earth’s moon and is approximately 3.3 billion miles away from us. You will need a large aperture telescope of at least eleven inches.

What can you see with a 90mm telescope? A 90mm telescope will provide you with a clear view of the Saturn along with its rings, Uranus, Neptune, and Jupiter with its Great Red Spot. You can also expect to see stars with 12 stellar magnitude with a 90mm telescope.

How much magnification do you need to see Jupiter?

To look at planets like Jupiter and Saturn, you will need a magnification of about 180; with that you should be able to see the planets and their moons. If you want to look at the planet alone with higher resolution, you will need a magnification of about 380.

How powerful can a telescope see galaxies? That being said, for most home telescopes, the optimal magnification to view most galaxies and deep sky objects is going to be between 80x and 150x depending on the specific object that you are looking at and the specifications of the telescope.

How good is a 150mm telescope?

150mm Newtonians are great all-rounders. The short focal length ones (f4 = 600mm focal length to f6 900mm focal length) are especially good for ‘deep sky’ (Galaxies, Nebulae, Star Clusters). Focal ratios of f6 to f8 are good for planetary views too! Newtonians over f8 (1200mm/150mm) are very cumbersome.

What was Galileo’s telescope? Galilean telescope, instrument for viewing distant objects, named after the great Italian scientist Galileo Galilei (1564–1642), who first constructed one in 1609. With it, he discovered Jupiter’s four largest satellites, spots on the Sun, phases of Venus, and hills and valleys on the Moon.