The CCD camera is also optional. The Rainbow Optics unit is meant to be used at the eyepiece, and anyone can find absorption lines in bright stars using this device. Thus, an amateur can collect spectral data by sketching what is seen at the eyepiece. These images are Copyright 1983-2001 by John A. Blackwell. If you are interested in a copy of an image, please contact me .
Images are available and can be printed on fine photo paper.
Regulus B7V Regulus. Rainbow Optics Grating. Rainbow Optics Grating. Sirius A1V Sirius. Rainbow Optics Grating.