Telescopes today come in all sorts, sizes and designs that you can think of. From small refractors to large comparison telescopes, there is a telescope that is suitable for a position close to the silver level or the visual level.
One telescope design, however, is very popular among amateur astronomers and is the Dobsonian. This humble Newtonian astronomy revolutionized amateur astronomy when it was first introduced in the mid -1960s by American telescope maker John Dobson. Its best -used low -resolution telescope is a display and brings the possibility of having a large aperture telescope to the public.
If you want to install a telescope why not read our guide to the best telescopes, pair your teens with the best telescopes for kids or, if you’re just starting out, take a look one of the best telescopes for beginners. Also, for financial information, we have compiled the best telescope gifts available today.
But when it comes to Dobsonians, an important feature of Dobson’s design is how easy it is for amateurs to make a Dobsonian telescope themselves, and many have done so. My first large aperture telescope around the age of 13 was a home -made 25cm Dobsonian stick (which was a very good work.)
Nowadays, design is very popular, especially for those who enjoy looking. In this section, we look at the specifics of the design and suggest some possible options to look at.
The Dobsonian Classic Design
The Newtonian reflector has been used for centuries since its invention by Issac Newton in 1668. Unlike refracting telescopes (lenses are very expensive in large sizes) the Newtonian reflector offers the ability to find a large aperture telescope without bank breaking.
The Dobsonian design provides a Newtonian reflector on a simple Alt-Az mount where the user can push / pull the telescope in a wide / vertical motion to locate targets. Most low -powered Dobsonian telescopes are not guided, which means they are suitable for observation. High prices come with two -axis navigation systems and can be more affordable. The right choice of telescope, of course, depends on what the user wants to accomplish.
With a telescope it has a Newtonian design, which means that the optical system must be combined to do its best. This can be confusing and frustrating for the beginner which requires time and patience to accomplish. Fortunately, most come with advice on how to properly mount the telescope and there is plenty of more information on the web for those who are struggling.
A 10-inch by 12-inch (25-30cm) Dobsonian can offer a fun view of life and offers better features than a 4-inch and 5-inch model. -inch (10-13cm) refracting telescope, under the dark. / lani mau. I can remember many good impressions through Dobsonian telescopes over the years.
Dobsonian is often used by observers who love to look at the celestial bodies. They are very popular among people who enjoy looking at galaxies and nebulae because very large holes can be made, up to as much as 40-inches (100cm) in some cases. They can be found quickly and they are good for jumping from goal to goal.
The New Dobsonian
Unlike the simple homemade gift I used in my younger years, the new version of Dobsonian design is delicious, at the very least. While low -cost design is widely used, developers have created full -featured Dobsonian designs that can be used for a wide range of applications rather than viewing pleasure.
The aperture varies in size but comes in sizes between 6-inch (15cm) and 20-inch (50cm.) Significantly, telescopes are much larger and heavier on the larger side. of scale, although most should be maintained as far as possible. easy to join / open.
The most famous feature of the Dobsonian design is that it allows the amateur to have a really large telescope. Dobsonian telescopes are available to high-depth astronauts, with a wide range of apertures in the 20-inch (50cm) and 30-inch (70cm) range. Such a telescope could see nebulae and galaxies that small telescopes could not reproduce.
These new designs offer simpler features. Running the entire computer, viewing the two axes, high -altitude monitors and optics. Companies like Skywatcher have made the new Dobsonian a popular choice for amateur astronomers around the world. They offer excellent optical quality and a wide range of features at real prices – which is what given the current financial pressure, considering many factors.
The new Dobsonian can be used for serious motion pictures, especially the image of the moon and stars where it is often used to good effect. Because of the length of propagation on a telescope, a Dobsonian can be placed on an equatorial plane so that the user can have a polar-aligned telescope.
Final thoughts
The Dobsonian is an excellent choice of telescope, especially for beginners. I am reminded of many positive thoughts through Dobsonian telescopes when I began my journey into astronomy more than thirty years ago. John Dobson’s revolutionary design changed the face of amateur astronomy forever and opened up the possibility of large -scale telephone access to the general public.
Although Dobsonian has benefited from the advancement of new technology since it was first developed in the 1960s, the main reason is that they make large telescopes. Anyone who is interested in looking at the night sky should think about it, especially if it is a tourist attraction. They are the only design where a really large telescope can do so many things, and while I can confirm when it comes to astronomy, the aperture is calculated!
