Arbor Scientific Project Star Precision Spectrometer, Spectra Observation Instrument with Built in Chart, 31 x 18 cm

Now students can see absorption lines in the sun’s spectrum with this spectrometer developed at the Harvard Center for Astrophysics’ Project STAR. With actual wavelength measurements and equivalent energies in electron volts, this tool enables students to identify different elements in various light sources, such as fluorescent lights, incandescent light bulbs, gas tubes, sodium or Mercury vapor lights, etc. They will be able to see the double yellow line of Mercury vapor in the spectrum of a fluorescent lamp. Light pollution can be studied by checking yellow street lights to see if they are high- or low-pressure sodium lamps. The spectrometer comes with a strip of film that includes the slit and a scale from which a color may be identified by wavelength in nanometers or photon energy in electron volts. Activities include: observing what diffraction grating does, calibrating the spectrometer, and identifying various light sources. Durable plastic construction. Recommended for astronomy, chemistry, physics, physical science, and earth science from high school to college

• Built in chart; contains common spectral line measurements in energy and wavelength, the cause, and where they are seen
• Integrated scale; observe light in nanometers and in corresponding energies expressed in electron volts
• Diffraction grating; utilizes a diffraction grater rather than a prism to identify the chemical composition of light sources
• Teaching guide; 7 page instructional guide
• Customer oriented service; all products are provided with teachers in mind, we will provide swift customer service if anything is needed