Telescope - Wikipedia, the free encyclopedia
|
|
A telescope is an instrument designed for the observation of remote objects by the collection of electromagnetic radiation. The first known practically functioning telescopes were invented in the Ne...
en.wikipedia.org/wiki/Telescope
|
|
|
This site has a good overview of astronomical telescopes. The principal function of an astronomical telescope is light gathering, (magnification is largely incidental; while sometimes useful, the huge magnification of the largest telescopes poses a difficult challenge to astronomical instrument makers).
|
casswww.ucsd.edu/public/tutorial/Telescope.html
casswww.ucsd.edu/public/tutorial/Telescope.html
|
|
|
|
Beginners sometimes wonder what eyepieces to get for a new telescope, and what eyepieces are all about in general. Eyepiece design and performance is fascinating, and many technical sources explain what's what, but I would like to give some simple, practical comments that might otherwise get lost in minutia.
|
www.observers.org/beginner/eyepieces.freeman.html
|
|
|
A refracting telescope makes use of this property with a carefully made lens having curved surfaces. ... DSCs appeal to those observers who like to understand the concepts of astronomical coordinate systems but want the processor to do the actual pointing. To set up DSCs, you must center either two or three bright...
|
www.astronomy.com/asy/default.aspx?c=ss&id=9
www.astronomy.com/asy/default.aspx?c=ss&id=9
|
|
Beautifully photographed in 4K digital cinematography, the film is a visually stunning chronicle of the history of the telescope from the time of Galileo, its profound impact upon the science of astronomy, and how both shape the way we view ourselves in the midst of an infinite universe.
|
Java applet: Refracting astronomical telescope ... This Java applet simulates a simple refracting astronomical (inverting) telescope, consisting of two lenses which are called the objective and the eyepiece (ocular).
|
www.walter-fendt.de/ph11e/refractor.htm
|
|
Focus is before the eyepiece, so the image in astronomical telescopes (even with the refractor above) is upside down. Terrestrial-viewing telescopes use other lenses to re-invert the image right-side up. ... Light Gathering Power--telescope acts as a light bucket so the bigger the objective, the more light is collected and...
|
www.maa.mhn.de/Scholar/telescopes.html
www.maa.mhn.de/Scholar/telescopes.html
|
|
The first step in choosing a telescope is to decide on the optical configuration. This has many repercussions, affecting the amount of sky that is imaged, the size of the Optical Tube Assembly (OTA) and hence the size of the dome, and the type of telescope mount.
|
www.astronomical.com/TelescopeOptics.htm
www.astronomical.com/TelescopeOptics.htm
|
|
ASTRONOMICAL FORMULAE / FORMULAE FOR TELESCOPES ... A is the distance of the Barlow center from the focal point of the telescope objective; B/A is the projection magnification (Barlow magnification);
|
www.company7.com/library/astforms.html
|
|
