What do telescopes allow you to see?

I know telescopes allow you to see the moon and images of certain planets, but does it actually allow you to see in depth detail of star clusters etc.?

I would apprectiate experienced opinions please.

Stars are points of light. A telescope might let you see some color.

Detail can be seen on the Moon, nebulae, some galaxies. Open clusters become lots of dots. Globular clusters can become lots and lots of dots. Many stars become double and triple stars.

Venus shows a crescent. Mars shows polar caps and certain large features. Jupiter has bands, swirls, the GRS, and moons. Saturn has rings, some bands, and moons. Uranus shows a colored disk, as does Neptune. Pluto is a dot.

There may be heavenly views through a neighbor’s window. The Earth is generally close enough to touch.


Comments

What do telescopes allow you to see? — 5 Comments

  1. telescopes collect light, and magnify.

    basically. that means you can see things "closer up" and fainter things are brighter, or things that are invisible to the unaided eye, become visible.

    the details on the moon are greatly enhanced with a scope.

    the planets, which look like pinpoints of light with the eye, can be resolved into spherical "discs" with a telescope!

    the stars, are far too distant to be resolved into their discs. but can be brighter, and you can see fainter ones.

    because of magnification, your field of view will get smaller… think of looking at a mountain from 1 mile away instead of 100 miles away. it’s bigger, you can see more details, etc… but the percentage o that mountain that you can see within the size of say, a sheet of paper held at arms length, is much less.
    References :

  2. A telescope does two act simultenously first it increases the optical angle of the object hence size of the celestial body appears to be big and detailed.Secondly our eyes can see only those objects which have light intensity more than a certain limit,if the object have intensity less than that human eye wont respond to the image formed on the retina.While increasing the optical angle the light intensity of the object is reduced this so higher is the diameter of the objective lens of the telescope more will be the quantity of light entering telescope which increses the quality of image.so higher is the magnification and diameter if objective lens of telescope we can see depth details of stars and other celestial bodies
    References :

  3. Michelle,
    Telescopes come in many different styles and sizes.
    The main 2 types are Reflectors and Refractors.

    Reflectors have mirrors and you look in the side near the top. Refractors are like Pirate scopes. You look in one end.

    The cheapest are Reflectors and can go up to very large apatures, Refractors cost a lot more to make and are smaller due to cost.

    To be able to see very distant objects like Faint Nebula and Galaxies you need to start with a Reflector. The commonest cheapest reflector is called a Dobsonian.

    Without going into heavy mathematics to explain the Focal ratios needed for different objects it is simpler to say Reflectors will give you a wider Field of View (FOV) making faint objects brighter. The more you magnify an object the fainter it will appear.

    To get an idea of what some objects look like through the eyepiece I have made a set of images to explain it on my website.

    Scroll down this page to ‘EYEPIECE VIEWS – WHAT TO EXPECT’
    http://australian-astronomy.bravehost.com/australianobserving.html

    Ken
    References :
    My own Astronomy site for Australian Amatuer Astronomers http://australian-astronomy.bravehost.com/australianobserving.html

  4. Stars are points of light. A telescope might let you see some color.

    Detail can be seen on the Moon, nebulae, some galaxies. Open clusters become lots of dots. Globular clusters can become lots and lots of dots. Many stars become double and triple stars.

    Venus shows a crescent. Mars shows polar caps and certain large features. Jupiter has bands, swirls, the GRS, and moons. Saturn has rings, some bands, and moons. Uranus shows a colored disk, as does Neptune. Pluto is a dot.

    There may be heavenly views through a neighbor’s window. The Earth is generally close enough to touch.

    References :

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