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Table of Contents
Transit Method
Transmit method Apparent Brightness vs Time
Description
The transit method for detecting exoplanets orbiting a star is demonstrated.
Purpose
To plot the detected intensity of a light source(star) as a function of time as an orbiting body(exoplanet) periodically comes in between the light source and the detector.
Apparatus
- Vernier LabPro Interface (plus USB cable to a computer and a power supply for the interface).
- Vernier LabPro light detector to use with the interface.
- LoggerPro installed on a computer that the interface will connect to via USB cable.
- Glass light diffuser and light source.
- Model exoplanets on supports.
- Assorted clamps, rods and mounting supports.
- Extension cord for the light source.
- Motorized rotating table with appropriate power supply and electrical connections.
- Black cloth to cover the table.
Setup
Suspend the diffuse light source above the rotating table. Attach a model exoplanet to the rotating table. The light sensor can be placed such that when the table rotates a periodic decrease in the intensity is observed.
Notes
This setup involves many pieces and the setup is involved and potentially involves more than one person. Please give plenty of advance notice of when the demo is needed and what room it will be needed in.
A computer is needed that has LoggerPro installed. Please speak to the demo room assistant if LoggerPro is desired on your personal laptop. Henn 200, 201, 202 and Hebb Theatre (Hebb 100) have LoggerPro installed on the Room PC.
Safety notes can also be added here or in the description. Use this one if theres a potentially fatal hazard like high voltage,
and this one can be used for less frightening things.
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Demo room information
| Location | —- |
| Maker | Unknown |
| Current State | Working |