A brief video about extraterrestrial colonization as a solution to overpopulation. For more information, go to: www.nasa.gov or www.nss.org
Video Rating: 5 / 5
Make a telescope, Telescopes for sale, Telescope Shop
A brief video about extraterrestrial colonization as a solution to overpopulation. For more information, go to: www.nasa.gov or www.nss.org
Video Rating: 5 / 5
As soon as it gets dark on Monday night (Aug. 20) approxiametly an hour after sunset, if you look low toward the southwest horizon the chances are you will see something remarkable in the shape of three “stars” forming an equilateral triangle, tilted a little to the left. What will make this a an eye-catching sight is that the three objects forming the triangle will be of similar contrast, but of contrasting colors.
Upon first look the night sky triangle may look red, white and blue with each side of the triangle measure ingbout 4 degrees in the night sky.
The triangle is set to remain in view until the trio sets less than an hour later. So if you wish to see it for yourself, you need to make sure you have a clear and unobstructed view toward the southwestern part of the sky.
Compared to regular telescopes, refracting telescopes have greater advantages. This article was written to outline these advantages.
In reviewing telescope designs you will find two major designs, the refracting telescope and the Newtonian reflecting telescope, founded by Galileo and Isaac Newton respectively. These two major designs are the basic foundation of all the improved telescope designs today. 
The refracting telescope is typically a thin long tube where you look through the back and find the lenses at the front. This design of refracting telescopes is advantageous above any telescope designs because it has an enclosed feature while reflecting telescopes have open features. Refracting telescope designs are quite simple, yet very reliable.
You may think that this feature may be of small regard but once you use a telescope outdoors, elements such as wind and rain degrade the telescope. This kind of problem is not an issue with refracting telescopes, which is why they hold a greater advantage compared to other telescopes.
Refracting telescopes are perfect for people who are new to astronomy since they are less complicated and easy to get adjusted to. Refracting telescopes are also good for children due to the enclosed and simple design. In general, refractor telescopes are a good buy for beginners. Although simple, they are able to show different views from space such as the moon and other distant planets.
Before you purchase a refracting telescope for sale in your area or online, you must also consider other factors. Refracting telescopes are not suitable for professional deep space viewing. So if you’re planning to buy one which is intended for such a use, try considering a telescope that has a bigger objective lens size. The bigger the lens, the more expensive the telescope becomes but the more reliable it is when it comes to performance.
Searching telescopes for sale online is a very good strategy in finding the best telescope for you. You can also view different ways on how to make a telescope on your own. On the Internet, you are able to view a variety of telescopes for sale thus maximizing your options along with your budget. Before making any purchases, you must first make sure that the websites you are potentially buying from are legitimate sellers. It still pays to be cautious once in a while, most especially if it involves your hard earned money!
Some telescopes for sale may be available in your area, and if they are, you are lucky!
For those who are interested in astronomy and planning to buy a telescope, the Internet is truly a blessing. There are thousands of telescopes for sale from department stores, various online retailers, and on eBay. A disadvantage with online purchasing is that you cannot visually examine the telescope before buying. However, you get the bonus of finding the best prices around. Many times online selections are much cheaper than telescopes for sale in local stores.
Sometimes, purchases through these channels could be a big risk on your part because you are unlikely to get direct advice from a knowledgeable salesperson.
There are few things you must understand to aid you in acquiring a telescope if you are not able to speak with an experienced user for some tips, or if you are looking for bargain online. It is good to note that there are some bargain telescopes for sale and websites to help you in your selection.
To start with your research on telescopes for sale, make sure you are considering a telescope with large diameter aperture lens. This is important because the larger diameter the lens, more light is being collected and magnification improves, thus ensuring that you are able to see the object of desire clearly.
Refractor telescopes are better in producing images than reflector telescopes, although the former could be expensive if you opt for larger apertures. They require very little maintenance and do a good job for seeing details on brighter planets and the Moon. This telescope uses lenses rather than mirrors.
If you are looking at star fields and galaxies use a reflector telescope. This telescope uses mirrors in collecting light then reflects and focuses the light back to the eyepiece of the telescope. Reflectors are cheaper and with larger apertures which can allow more magnification to see sky objects closer.
You may include the catadioptic telescope in your search for telescopes for sale. It is portable but is more expensive. This telescope is some sort of a mix of refractor and reflector and uses both lenses and mirrors. This is popular among astronomers who have upgraded from beginner telescopes.
Lastly, remember that the size and weight of telescopes is very important when you have to transport your telescope to a location for clear unobstructed night sky viewing.
If you are into astronomy, it is very important to have your own telescope, because by owning the best telescope for your needs, it will ensure that you get the most out of your astronomical sightings. For some people, the best telescope could potentially mean the most expensive model. However, there are telescopes that may cost less, but would serve you for years of enjoyment in the field of astronomy.
There are factors that you should be researching before heading to the store and spending you hard earned money for your brand new eye to the sky!
You must be aware that the performance of the best telescope for you is based on its aperture, not its magnification. A telescope’s aperture, or ability to gather light, determines how well an image could be seen more so than its magnification. The aperture of the telescopes for sale should match their intended use. It’s important to remember that without having sufficient light, you will not see anything at all, even if your telescope has a dazzling magnification.
Another topic to consider is choosing between a reflector telescope and a refractor telescope.
Refractor telescopes have a long tube that is great because of a very low maintenance. The same principle applies to binoculars – the light enters in the front of the tube while you look from the back. This is the best telescope applicable for youngsters. It is easy to use as refractors come in small sizes, but for larger sizes, the cost may become extreme (even as high as thousands of dollars). However, it is not necessary to spend so much in order to view objects in the night sky, as there is another type of telescope commonly referred to as the reflector telescope. These telescopes utilize mirrors heavily, which is why they are called “reflector” telescopes.
Computerized telescopes are becoming popular nowadays. They are great for many reasons. One such reason is that computerized telescopes have codes that, once entered, would allow you to view the object of your choosing by automatically zooming to the exact point in the sky! It is an automatic navigation of the universe … the best way to get into astronomy. It saves a lot of time (and sometimes frustration) rather than doing it manually.
Nonetheless, owning a telescope is a great way to learn astronomy. An easy way to finding the best telescope for you is join an astronomy club. Most clubs have observation nights. You don’t necessarily have to be a member to attend, so if interested, go and participate so that you have the opportunity to try different telescopes and discover which telescope is best for you.
In conclusion, think carefully on the parameters of investing a telescope and find one that suits your own fundamental requirements without having to spend a fortune. Even a less expensive telescope will excite you with how much you can observe the universe.