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written by Walter Fendt
This applet demonstrates the working of a two-lens refracting astronomical telescope.  The focal length of the two lenses can be changed by the user. As an example, the image of the six brightest stars of the Pleiades, as viewed with and without the lenses, is simulated.

This applet part of large collection of physics applets by the author and may be accessed in a variety of languages at http://www.walter-fendt.de/ph14e/

Please note that this resource requires at least version 1.4.2 of Java.
Subjects Levels Resource Types
- General
- Geometrical Optics
- High School
- Lower Undergraduate
- Instructional Material
= Interactive Simulation
Appropriate Courses Categories Ratings
- Physical Science
- Physics First
- Conceptual Physics
- Algebra-based Physics
- AP Physics
- Activity
- New teachers
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Intended User:
Access Rights:
Free access
© 2000 Walter Fendt
Additional information is available.
focal length, image, lens, optics, refractor, telescope
Record Cloner:
Metadata instance created July 28, 2006 by swapna gurumani
Record Updated:
August 18, 2020 by Lyle Barbato
Last Update
when Cataloged:
January 18, 2003
Other Collections:

ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
W. Fendt, (2000), WWW Document, (https://www.walter-fendt.de/html5/phen/refractor_en.htm).
W. Fendt, Refracting Astronomical Telescope, (2000), <https://www.walter-fendt.de/html5/phen/refractor_en.htm>.
APA Format
Fendt, W. (2003, January 18). Refracting Astronomical Telescope. Retrieved November 23, 2020, from https://www.walter-fendt.de/html5/phen/refractor_en.htm
Chicago Format
Fendt, Walter. Refracting Astronomical Telescope. January 18, 2003. https://www.walter-fendt.de/html5/phen/refractor_en.htm (accessed 23 November 2020).
MLA Format
Fendt, Walter. Refracting Astronomical Telescope. 2000. 18 Jan. 2003. 23 Nov. 2020 <https://www.walter-fendt.de/html5/phen/refractor_en.htm>.
BibTeX Export Format
@misc{ Author = "Walter Fendt", Title = {Refracting Astronomical Telescope}, Volume = {2020}, Number = {23 November 2020}, Month = {January 18, 2003}, Year = {2000} }
Refer Export Format

%A Walter Fendt
%T Refracting Astronomical Telescope
%D January 18, 2003
%U https://www.walter-fendt.de/html5/phen/refractor_en.htm
%O application/java

EndNote Export Format

%0 Electronic Source
%A Fendt, Walter
%D January 18, 2003
%T Refracting Astronomical Telescope
%V 2020
%N 23 November 2020
%8 January 18, 2003
%9 application/java
%U https://www.walter-fendt.de/html5/phen/refractor_en.htm

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Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Style.org: Electronic References.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.

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