What is the most important quality of an astronomical telescope quizlet?
The two most important properties of a telescope are its light-collecting area and its angular resolution. A telescopes light-collecting area tells us how much total light it can collect at one time.
What are the two most important qualities of astronomical telescopes?
The two most important properties of a telescope are:
- Light gathering ability – The better a telescope can gather light, the better you will be able to see far away stars and faint objects in the night sky.
- Magnification – The magnification of a telescope describes how much larger the telescope can make objects appear.
What is a telescope resolution?
In astronomy: Telescopic observations. The angular resolving power (or resolution) of a telescope is the smallest angle between close objects that can be seen clearly to be separate. Resolution is limited by the wave nature of light.
What of the following properties of a telescope is least important?
Magnification is the least important power of a telescope. Amateur and professional astronomers know that the light-gathering power and resolving power are the most important. These two abilities depend critically on the objective, so they make sure the optics of the objective are excellent.
What makes a good telescope?
As a rule of thumb, your telescope should have at least 2.8 inches (70 mm) aperture — and preferably more. Dobsonian telescopes, which are reflectors with a simple mount, provide lots of aperture at relatively low cost. A larger aperture lets you see fainter objects and finer detail than a smaller one can.
What is an astronomical telescope?
Definition of astronomical telescope : a telescope that is designed for observing celestial bodies and that requires no image-erecting system — compare terrestrial telescope.