Planck Distribution Plot


This is a demo experiment that shows the Planck distribution versus wavelength as a function of temperature. The intent is to allow someone to see what the spectral distribution is from a black-body radiator at a given temperature. Programmers can also make use of the Planck distribution functions in the procedure file (wavelength and frequency forms are given).

Screenshot of Planck Distribution Demo.


A graph shows ten radiation curves in the wavelength range 200 nm to 1200 nm. A frequency axis is given at the top, and a rainbow window is included in the graph to show the range of visible light.

A panel input allows you to change the lower temperature and step size of the ten curves.

Distribution Details

  • Experiments: PlanckDistributionDemo
  • Procedure Files: none
  • XOPS: none
  • Demos: none
  • Requires Packages: Transform Axis (provided by Wavemetrics)
  • Benefits from Optional Packages: none
  • Help Files: none
  • Documentation: the Web pages for this project and a notebook


Unzip the archive and double click on it. It should be self-contained.


Screenshot of Planck Distribution Demo

Project Details

Current Project Release

Planck Distribution Plot IGOR.6.03.x-1.1-1

Release File: Planck (91.55 KB)
Version: IGOR.6.03.x-1.1-1
Version Date:
Version Major: 1
Version Extra: 1
Version Patch Level: 1
OS Compatibility: Windows Mac-Intel
Release Notes:

This update increases the precision of the constants.

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