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Length of Astronomical Telescope Formula

GoLength of Astronomical Telescope when Image Forms at Infinity Formula

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The length of Telescope is the distance between the objective lens and the eyepiece. Check FAQs

L telescope = f o + \frac{D \cdot f e}{D + f e}

L_telescope - Length of Telescope?f_o - Focal Length of Objective?D - Least Distance of Distinct Vision?f_e - Focal Length of Eyepiece?

Length of Astronomical Telescope Example

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Here is how the Length of Astronomical Telescope equation looks like with Values.

Here is how the Length of Astronomical Telescope equation looks like with Units.

Here is how the Length of Astronomical Telescope equation looks like.

103.4483 = 100 + \frac{25 \cdot 4}{25 + 4}

103.4483cm = 100cm + \frac{25cm \cdot 4cm}{25cm + 4cm}

103.4483 = 100 + \frac{25 \cdot 4}{25 + 4}

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Length of Astronomical Telescope Solution

Follow our step by step solution on how to calculate Length of Astronomical Telescope?

FIRST Step Consider the formula

L telescope = f o + \frac{D \cdot f e}{D + f e}

Next Step Substitute values of Variables

∴

L telescope = 100cm + \frac{25cm \cdot 4cm}{25cm + 4cm}

Next Step Convert Units

∴

L telescope = 1m + \frac{0.25m \cdot 0.04m}{0.25m + 0.04m}

Next Step Prepare to Evaluate

∴

L telescope = 1 + \frac{0.25 \cdot 0.04}{0.25 + 0.04}

Next Step Evaluate

∴

L telescope = 1.03448275862069m

Next Step Convert to Output's Unit

∴

L telescope = 103.448275862069cm

LAST Step Rounding Answer

∴

L telescope = 103.4483cm

Length of Astronomical Telescope Formula Elements

Variables

Length of Telescope

The length of Telescope is the distance between the objective lens and the eyepiece.

Symbol: L_telescope

Measurement: LengthUnit: cm

Note: Value can be positive or negative.

Formulas to find Length of Telescope

Focal Length of Objective

The Focal Length of Objective is the focal length of the lens in front known as the objective lens uses to focus an image.

Symbol: f_o

Measurement: LengthUnit: cm

Note: Value should be greater than 0.

Formulas to find Focal Length of Objective

Least Distance of Distinct Vision

The Least Distance of Distinct Vision (LDDV) is the closest someone with "normal" vision (20/20 vision) can comfortably look at something.

Symbol: D

Measurement: LengthUnit: cm

Note: Value should be greater than 0.

Formulas to find Least Distance of Distinct Vision

Focal Length of Eyepiece

The Focal Length of Eyepiece is the distance from the principal plane of the eyepiece where parallel rays of light converge to a single point.

Symbol: f_e

Measurement: LengthUnit: cm

Note: Value should be greater than 0.

Formulas to find Focal Length of Eyepiece

Other Formulas to find Length of Telescope

Go Length of Astronomical Telescope when Image Forms at Infinity

L telescope = f o + f e

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M = \frac{f o}{f e}

Go Magnifying Power of Galilean Telescope when Image Forms at Infinity

M = \frac{f o}{f e}

How to Evaluate Length of Astronomical Telescope?

Length of Astronomical Telescope evaluator uses Length of Telescope = Focal Length of Objective+(Least Distance of Distinct Vision*Focal Length of Eyepiece)/(Least Distance of Distinct Vision+Focal Length of Eyepiece) to evaluate the Length of Telescope, The Length of Astronomical Telescope is the distance between the objective lens and the eyepiece. Length of Telescope is denoted by L_telescope symbol.

How to evaluate Length of Astronomical Telescope using this online evaluator? To use this online evaluator for Length of Astronomical Telescope, enter Focal Length of Objective (f_o), Least Distance of Distinct Vision (D) & Focal Length of Eyepiece (f_e) and hit the calculate button.

FAQs on Length of Astronomical Telescope

What is the formula to find Length of Astronomical Telescope?

The formula of Length of Astronomical Telescope is expressed as Length of Telescope = Focal Length of Objective+(Least Distance of Distinct Vision*Focal Length of Eyepiece)/(Least Distance of Distinct Vision+Focal Length of Eyepiece). Here is an example- 10344.83 = 1+(0.25*0.04)/(0.25+0.04).

How to calculate Length of Astronomical Telescope?

With Focal Length of Objective (f_o), Least Distance of Distinct Vision (D) & Focal Length of Eyepiece (f_e) we can find Length of Astronomical Telescope using the formula - Length of Telescope = Focal Length of Objective+(Least Distance of Distinct Vision*Focal Length of Eyepiece)/(Least Distance of Distinct Vision+Focal Length of Eyepiece).

What are the other ways to Calculate Length of Telescope?

Here are the different ways to Calculate Length of Telescope-

Length of Telescope=Focal Length of Objective+Focal Length of Eyepiece

Can the Length of Astronomical Telescope be negative?

Yes, the Length of Astronomical Telescope, measured in Length can be negative.

Which unit is used to measure Length of Astronomical Telescope?

Length of Astronomical Telescope is usually measured using the Centimeter[cm] for Length. Meter[cm], Millimeter[cm], Kilometer[cm] are the few other units in which Length of Astronomical Telescope can be measured.

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Length of Astronomical Telescope Formula

​GoLength of Astronomical Telescope when Image Forms at Infinity Formula

Length of Astronomical Telescope Example

Length of Astronomical Telescope Solution

Length of Astronomical Telescope Formula Elements

Other Formulas to find Length of Telescope

Other formulas in Astronomical Telescope category

How to Evaluate Length of Astronomical Telescope?

FAQs on Length of Astronomical Telescope

Variable Name

GoLength of Astronomical Telescope when Image Forms at Infinity Formula