What is the size of the mirror in a telescope, and how does it work?

- The Funscope mirrors have a diameter of 76 millimeters, while the Funscope tube has a diameter of 635 millimeters. The Gemini telescope in Chile, which I saw, has a mirror with a diameter of 8000 millimeters, which is enormous. When you plug those figures into the equation for light gathering power and compare them to the light gathering power of our human eye, you obtain the following results:

Contents

- 1 What is the magnification of an image when using a 10 inch diameter telescope with a focal length of 1000 mm when using an eyepiece with a 35 mm focal length?
- 2 What is the magnification of an image when using a 10 inch diameter telescope with a focal length of 1000 mm when using an eyepiece with a 15 mm focal length?
- 3 How much more light can the 5 m telescope at Mount Palomar collect from an astronomical source than can the unaided human eye with a diameter of 5 mm )?
- 4 Which power of an optical telescope is determined by the diameter of the primary mirror or lens?
- 5 How do you calculate light gathering power?
- 6 How is telescope zoom calculated?
- 7 What can you see with a 90x telescope?
- 8 How much more resolving gathering power does a 10 inch telescope have than a 5 inch telescope?
- 9 What can you see with a 150mm telescope?
- 10 How much more light gathering power does the 1 telescope have compared to the human pupil?
- 11 What is the light gathering power difference between a 10 meter telescope and a 30 meter telescope?
- 12 How does the light gathering power of a telescope depend on its diameter?
- 13 What is the light gathering power of a telescope?
- 14 What is the light gathering power of an 8 inch telescope compared to a 4 inch telescope?
- 15 How is telescope power measured?

## What is the magnification of an image when using a 10 inch diameter telescope with a focal length of 1000 mm when using an eyepiece with a 35 mm focal length?

In this case, a 1000mm focal length telescope with a 10mm ocular is working at 100x magnification (1000/10=100) since the focal length is 1000mm.

## What is the magnification of an image when using a 10 inch diameter telescope with a focal length of 1000 mm when using an eyepiece with a 15 mm focal length?

When a larger focal length eyepiece, such as a 25mm (low power) is used on a telescope with a 1000mm focal length, the resultant magnification is 1000 x 25 = 40 times greater than the original magnification. A short focal length 10mm (high power) eyepiece used on the same 1000mm telescope will yield a magnification of 1000 x 10 = 100x when combined with the same 1000mm telescope.

## How much more light can the 5 m telescope at Mount Palomar collect from an astronomical source than can the unaided human eye with a diameter of 5 mm )?

The greater the size of the mirror or lens, the more light that can be collected and the fainter the source that may be detected by the astronomer. Located on Mt. Palomar, the iconic 5-meter-diameter Hale Telescope is capable of collecting 640,000 times the amount of light that a human eye is capable of absorbing.

## Which power of an optical telescope is determined by the diameter of the primary mirror or lens?

The diameter of a telescope’s aperture, or opening—that is, the area of its biggest or primary lens or mirror—determines the amount of light that can be collected by the instrument.

## How do you calculate light gathering power?

When comparing the light-gathering power of different-sized apertures, the ratio of their diameters squared is used; for example, a 25-cm (10-inch) objective would collect four times the light of a 12.5-cm (5-inch) objective ([25 25] [12.5 12.5] = 4).

## How is telescope zoom calculated?

It is equal to the product of the focal length of the telescope divided by the focal length of the eyepiece. As a matter of thumb, the maximum usable magnification of a telescope is 50 times the aperture in inches of the telescope (or twice its aperture in millimeters).

## What can you see with a 90x telescope?

If you are looking at the night sky with a very large (wide) telescope, you can see a great deal (if you are in a dark location), but if you are looking at the night sky with a small telescope, you can see a few interesting things (the Moon, planets, some nebulae and star clusters) but not any relatively faint objects.

## How much more resolving gathering power does a 10 inch telescope have than a 5 inch telescope?

More light should be collected in order to discern fainter things. Telescopes are used for a variety of purposes, the most significant of which is observation. As a result, a 10-inch diameter telescope catches (10/5) 2 = 22 = 4 times the amount of light that a 5-inch diameter telescope does. An 8-inch telescope (which is commonly used by amateur astronomers) catches 1600 times the amount of light that the human eye can see.

## What can you see with a 150mm telescope?

Refractors between 150 and 180 mm in diameter, reflectors between 175-200 mm in diameter, and catadioptric telescopes:

- Binary stars with an angular separation of less than one inch, dim stars (up to 14 stellar magnitude), lunar features (2 km in diameter), and other celestial objects On Mars, there are clouds and dust storms
- It is possible to see 6-7 moons of Saturn, as well as the planetary disk of Titan

## How much more light gathering power does the 1 telescope have compared to the human pupil?

Because of the lengthy exposure period of the telescope’s camera, it is able to collect far more light than the human eye. This allows telescopes to identify objects that are far fainter than those that can be seen with the naked eye. Combining the findings of trials 1 and 2 yields the following result: In comparison to your eye, the telescope can capture 600 x 900 = 540,000 times as much light!

## What is the light gathering power difference between a 10 meter telescope and a 30 meter telescope?

It is the area of a telescope’s main, or primary, mirror that determines the amount of light it is capable of collecting. In other words, the 30-meter-class telescopes now under construction will be ten times more powerful than the biggest observatories currently in operation on the planet, which have main mirrors 10 meters broad.

## How does the light gathering power of a telescope depend on its diameter?

It is directly related to the area of the objective lens that the light-gathering power of a telescope is maximized. The bigger the lens, the greater the amount of light that can be collected by the telescope. The magnification power of a telescope is defined as the ratio of an object’s angular diameter to its diameter as seen with the naked eye. This is dependent on the focal lengths of the two lenses being used.

## What is the light gathering power of a telescope?

Light-Attracting Capacity With the telescope, you may think of it as a “light bucket,” which collects all of the photons that come down on it from a distant object. In the same way that a larger bucket can hold more rainwater, a larger goal can gather more light in a given amount of time. This increases the brightness of dim visuals.

## What is the light gathering power of an 8 inch telescope compared to a 4 inch telescope?

An 8-inch mirror will capture double the amount of light collected by a 4-inch mirror, according to the law of averages. 14. The 400-inch Keck reflector has a field of view that is 100 times greater than the 40-inch Yerkes lens.

## How is telescope power measured?

If you want to know how much power your telescope has, divide the focal length of the telescope (in mm) by the focal length of the eyepiece (in mm). Example: When used in conjunction with a 1000 mm focal-length telescope, a 20 mm eyepiece will produce an effective magnifying power of 50x (1000/20 = 50).