he comet spectrum above has only had initial processing applied, so additional small wavelength shifts and background subtraction still need to be corrected. The SOLSTICE 3 channels overlap near 180 and 300 nm. The cometary OH and O emissions, primarily from the dissociation of H₂0, and the C emissions, from the dissociation of CO, CO₂, and dust, are the brighter emission features seen in this spectrum. The bright emission at 121.6 nm is mostly the geocoronal H I Lyman- airglow, although some of this emission is also from the comet.