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Computer Program Detail Page

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Exoplanet Detection: Transit Method
written by Mario Belloni
The Exoplanet Detection: Transit Method model simulates the detection of exoplanets by using the transit method of detecting exoplanets. In this method, the light curve from a star, and how it changes over time due to exoplanet transits, is observed and then analyzed. In this simulation the exoplanet orbits the star (sun-sized) in circular motion via Kepler's third law.  When the exoplanet passes in front of the star (transits), it blocks part of the starlight. This decrease in starlight is shown on the graph.  If the exoplanet is close enough to the central star, and has sufficient reflectivity, or albedo, it can reflect enough of the starlight to be seen on the light curve. In the simulation the star-exoplanet system is shown as seen from Earth (edge on view) but magnified greatly, and with the star and planet sizes not shown to the scale of the orbit. The radius of the central star (relative to the radius of Sun),semi-major axis of the exoplanet (in AU), radius of the exoplanet (relative to the radius of Jupiter), the exoplanet's albedo (reflectivity), and the inclination of the system relative to Earth can be changed.

The simulation uses Java 3D, if installed, to render the view the star and exoplanet. If Java 3D is not installed, the simulation will default to simple 3D using Java.

Please note that this resource requires at least version 1.5 of Java (JRE).

Please note that this resource requires Java3D.
1 source code document is available
Subjects Levels Resource Types
- Astronomy Education
= Curricula
- Exoplanets
= Detection Methods
- Lower Undergraduate
- High School
- Informal Education
- Instructional Material
= Demonstration
= Simulation
Intended Users Formats Ratings
- Learners
- Educators
- application/java
  • Currently 5.0/5

Rated 5.0 stars by 1 person

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Access Rights:
Free access
This material is released under a GNU General Public License Version 3 license.
Rights Holder:
Mario Belloni
EJS, Easy Java Simulations, OSP, Open Source Physics, detection, eclipse, exoplanet, transit
Record Cloner:
Metadata instance created June 29, 2010 by Mario Belloni
Record Updated:
December 2, 2021 by Lyle Barbato
Last Update
when Cataloged:
June 29, 2010
Other Collections:

ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
M. Belloni, Computer Program EXOPLANET DETECTION: TRANSIT METHOD, Version 1.0 (2010), WWW Document, (
M. Belloni, Computer Program EXOPLANET DETECTION: TRANSIT METHOD, Version 1.0 (2010), <>.
APA Format
Belloni, M. (2010). Exoplanet Detection: Transit Method (Version 1.0) [Computer software]. Retrieved July 21, 2024, from
Chicago Format
Belloni, Mario. "Exoplanet Detection: Transit Method." Version 1.0. (accessed 21 July 2024).
MLA Format
Belloni, Mario. Exoplanet Detection: Transit Method. Vers. 1.0. Computer software. 2010. Java (JRE) 1.5, Java3D. 21 July 2024 <>.
BibTeX Export Format
@misc{ Author = "Mario Belloni", Title = {Exoplanet Detection: Transit Method}, Month = {June}, Year = {2010} }
Refer Export Format

%A Mario Belloni %T Exoplanet Detection: Transit Method %D June 29, 2010 %U %O 1.0 %O application/java

EndNote Export Format

%0 Computer Program %A Belloni, Mario %D June 29, 2010 %T Exoplanet Detection: Transit Method %7 1.0 %8 June 29, 2010 %U

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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 Electronic References.

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Exoplanet Detection: Transit Method:

Is Based On Easy Java Simulations Modeling and Authoring Tool

The Easy Java Simulations Modeling and Authoring Tool is needed to explore the computational model used in the Exoplanet Detection: Transit Method.

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