HW 05 - Spectroscopy 1. Types of Spectra a. A cool cloud of Helium absorbs light from some nearby stars. You view only the light given off by the cloud, not any stars. Draw the plot that you expect your instruments to measure from this light. Explain how you drew your plot, including why any parts have an intensity of zero, non- zero, or are more/less intense than other wavelengths. Helium 600 nm Note: There are more spectral lines, but these are the ones that your instruments will notice. Intensity 300 400 500 600 700 Wavelength (nm)