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Generally instead of looking along the axis of the telescope as is done with a refractor sighting the object to view is more difficult since you view the eyepiece at right angles to the main axis of the reflector. The main way to overcome this is to make a hole in the centre of the mirror as is done in the Hubble telescope and view the image from behind the mirror. This is called a Cassegrain configuration.
What else can I help you with?
Arecibo radio telescope is laid out like which optical telescope design?
The Arecibo radio telescope is not laid out like any specific optical telescope design. It is a unique design called an "active spherical reflector" where the dish itself is spherical in shape and fixed in position. This design allows for a large collecting area and a high sensitivity to radio signals.
Did the hubble space telescope have any problems?
yes
What are the uses for a reflector telescope?
A small reflector telescope usually is less useful than a small refractive telescope, especially when there is plenty of light, but when one needs a large telescope and there is not much light, then the reflector telescope can be made much lighter than the refractor and usually much larger. It also can gather more light which is very useful in astronomy. It also does not have to pass its light through thick large lenses that absorb part of the light. What is more, it can reflect almost any kind of light, from microwave radio to ultraviolet, while it is difficult to make lenses for large refractor telescopes that do not absorb some kinds of light such as infrared and ultra violet. There also are advantages when one wants to see in more than one wavelength (colour) of light. It is difficult to prevent the different colours from separating out when passing through a large lens, but a reflector telescope does not have this problem much.
How can I fold a light reflector?
To fold a light reflector, start by collapsing the frame inwards. Then, fold the reflector material in a zigzag pattern to fit within the frame. Finally, secure the folded reflector with any straps or clips provided.
How many starts can be seen from earth with out using any telescope?
Something like 4,000 to 6,000 .
Why are telescope eyepieces an important part of any visual telescope?
Telescope eyepieces are important of any visual telescope. It is the main part of the telescope and is what determines how the object will look like through the telescope.
How far above the reflector must the radio-detecting equipment be placed in order to obtain clear radio images?
The reflector of any 'dish' antenna ... whether a radio-telescope, a satellite TV antenna on the garage, a 'Big Ear' sound recording dish, or the main mirror of a reflecting optical telescope ... is a parabolic shape. The principle of the parabola is that anything entering it parallel to its axis gets focused to the same single point, called the "focus" of the parabola, and that's where the receiver, the microphone, or the eyepiece belongs. The exact location of the focus depends on the curvature of the individual reflector, so there's no one optimum location that applies to all of them.
How does the laser ranging device work?
A laser-rang device works by using a laser beam to find horizontal fault movements. It can also use the laser beam to travel to a reflector and then back. Thus, the device can detect any change in distance to the reflector.
What type of telescope measures appparent brightness or mass?
Any kind of telescope may be involved in those measurements. The type of measurement you want to make is how you decide what kind of detector to place at the focus of whatever telescope you're using.
Who makes a telescope and in any year?
Practically anyone can make a telescope at any time.
What is the emissivity of an ideal reflector?
The emissivity of an ideal reflector is 0, meaning it reflects all incoming radiation without emitting any.
What telescope was found on M51 galaxy?
No telescope has been found on any galaxy
