If you have a radio telescope for amateur radio astronomy, which signals can it record? Many first time telescope buyers are people who have had a long simmering interest in astronomy, but know little about telescopes or what to expect from them. Many observers find a barlow lens to be a valuable accessory. Sometimes telescopes are advertised using magnification, but a large magnification on too small a telescope just produces a large blurry image. There is something rather nice about kicking a 20" Dob out the door and observing with it within a couple of minutes while your friends are still assembling their small equatorial mounts. One of the most frequently asked questions we get is how to buy a good telescope without breaking the bank. The OTA design and quality of manufacture also determine how maintenance free, or durable the telescope will be.
Buying a Telescope
A barlow is useful tool for doubling your collection at minimal cost. Focal ratios of between f5 to f6 provide good versatility, as they grow to f7 and longer these become awkward for many and limit the field of view more and more although at f7 or more their contrast can improve to provide refractor like views of the planets, and moon. But these larger binoculars are unwieldy for hand held use over extended sessions, and so they are often mated to a parallelogram mount with tripod. In fact, if you don't pick up some of the intellectual aspects of the hobby, you likely will not appreciate owning and using a telescope, because quite often what you see in the eyepiece really is a dim, fuzzy blob or a tiny dot. Or, if the cost of telescope 1 is too high, then possibly the buyer may be able to find another telescope with some compromise of Quality or Design to a degree that it becomes a reasonable acquisition. This is a tougher question to answer than you may think.
South Florida Amateur Astronomers Association and the Fox Astronomical Observatory
They are an excellent value for the money and are a popular choice for a first telescope. Choices could include an 80mm 3. At some point - and you will know when that is - you will be ready to take the next step and purchase the telescope of your dreams. Someone living in a city who needs to transport the telescope to darker skies will likely want something smaller, lighter, and easier to move around. Join a local astronomy club and participate in their activities. Available editions United Kingdom. Don't be in too great a rush.
If you have a pair of binoculars, you can use your hands, although mounting your binoculars on a tripod will enable better views. And to learn more about what can be seen in the night sky, and how to observe you may refer to many on line sources including our own observing planning aids page, or you can perform a search by entering your state and "astronomy club" in an Internet search engine. There are a number of designs of Equatorial mount but those which the amateur is most likely to encounter are the Equatorial Fork and the less intuitive German Equatorial arrangement. Consider that a 8"f6 Newtonian tube will weigh about 32 lbs 14 kg , be 10 x 48 inches wide and long necessitating a heavy German Equatorial Mount for a total weight of about lbs 45 kg. Society of Amateur Radio Astronomers. Brown Associate professor, Monash University.