Detailed pictures of the original Galileo Telescopes and what they looked like when they new.We are making measurements of it for replication of it. see more detailshttp://www.scitechantiques.com/Galileo_telescope/
Duration : 0:1:38
Just curious. It seems that for some of the more interesting stars, especially the closer ones, it might be a useful thing to have radio Telescopes focused upon them at all times. If ever we detect any appreciable amount of life on a distant planet and have indication that it might be technological, would it behoove us to launch a telescope dedicated just to that world?
The problem is to define interesting. Whatever criteria you use, there well be always dozens of stars that fall into that category. So statistically it pays better to monitor a star for a while, and then to jump to the next.
In this 1994 video John Dobson reviews his life of sidewalk Astronomy and makes the case for amateurs going public with their scopes. Includes clips from his telescope making and cosmology classes.
Duration : 0:9:19
I am thinking about buying a telescope but I do not know the difference between these.
I want to use my telescope for just, looking at saturn, mars and other planets, maybe close stars to see what I can see and the space station and satellites!
the same difference between a basball bat designed for hitting vs. one designed for batting.
The very latest in the Celestron line is the Celestron EdgeHD – an Aplanatic Schmidt optical system that produces pinpoint star images all the way to the edge of the field. Some optical systems currently on the market may produce coma free images. But there is a difference…. the optical difference. Not only is the Celestron EdgeHD telescope coma free, but it also has a built in field flattener to ensure sharp focus all the way to the edge of the field, producing true Astrograph quality images. This results in pinpoint, High Definition star images throughout your astro photograph! These superior features combined with the Celestron CGE Pro and CGEM mounts make the new Celestron EdgeHD series the new gold standard in Astro Imaging and the system of choice for the serious astro-imagers.
Celestron EdgeHD Telescopes are available for order at OPT – www.optcorp.com !
Duration : 0:4:19
Every camera shop I’ve been in sells telescopes by the door. What’s up with that?
Telescopes and binoculars have specialized lenses like cameras have.
The Sun and stars emits radio waves — not just visible and infrared light. In the 1930s, Karl Jansky built the first devise to “listen” to the sun, collecting radio waves from far off stars and focusing them onto a detector. This invention provided astronomers with a completely different view of the Universe — prompting the discovery of radio stars, quasars, and black holes.
This video features a model of the Algonquin Radio Observatory (ARO), located in Ontario’s Algonquin Provincial Park. In 1968, astronomers combined signals from the ARO with those from the Dominion Astrophysical Radio Observatory in Penticton, British Columbia forming a new instrument called a Long Baseline Interferometer.
To learn more about Astronomy and Telescopes, visit the Canada Science and Technology Museum.
http://www.sciencetech.technomuses.ca/
Duration : 0:3:7
I don’t know what professional astronomers will say about it but I think we are not going to see Earth and rest of solar system unless with powerful Telescopes that can filter Oort Cloud that may block the view.
We will be able to see the solar system, and we can see through the Oort cloud. We do it all the time, from Earth. How do you think astronomers take pictures of stars light years away?
The Oort cloud is not as dense as you may think.
Out side of the solar system, we might now be able to see the inner planets, as they are too small and too close to the bright glare of the sun, but we will see the sun, and the outer planets (Jupiter, Saturn, Uranus, Neptune)
When buying a telescope, be wary of inflated magnification claims and wobbly tripods. Shop wisely for Telescopes with the buying tips in this free video on home Astronomy from a telescope salesperson.
Expert: Jesse Sturgeon
Bio: Jesse Sturgeon has served as a sales and customer service representative for Anacortes Telescope in Anacortes, Wash. for several years. He enjoys introducing people to the science & art of astronomy.
Filmmaker: Curtis Enlow
Duration : 0:2:19
Reflecting Telescopes consist of a set of curved mirrors used to focus light. With a concave mirror in the back it consentrates the light making the image brighter.
Refracting telescopes is an optical telescope the refracts light at each end using lenses.
So why do astronomers prefer refracting telescopes other than reflecting?
All help is appreciated!
Refracting telescopes put a very serious limitation on how large the telescope’s aperture can be because they require a large area of unsupported glass. Reflecting telescope mirrors can be supported from behind, so can be built in almost any size. Since aperture is the most important characteristic of modern telescopes, all modern research instruments are reflectors.
