Changes
/* Setting up the grating */
* The angles listed in the second last column of the table below will get one into the range where lines are visible for a given grating, then adjust the grating angle (decrease/increase the angle to go more red/blue) to obtain the desired wavelength range - consult the sample arcs in the right-hand column of the table and the arc maps linked to below.
* Click on the following links for '''Arc Maps''' for '''[[G4]]''', '''[[G5]]''', '''[[G6]]''' and '''[[G7]]'''. Maps Otherwise, here are additional sets of maps for [[CuNe]] (for G5) and [[CuAr]] (for all the remaining other gratings will be made available once they are available) with many more lines identified.
* Click on the following link for '''[[Sample Spectra of Spectrophotometric Standard Stars]]''' observed with G4, G5, G6 and G7.
