coro - Coud
- coronagraphs
- coronal holes
- coronal lines
- coronal loops
- coronal mass ejections
- coronal plumes
- coronal transients
- coronas
- corpuscular emissions
- correcting lenses
- corrections
- corrector plates
- correlation
- cosmic
- cosmic abundance
- cosmic background radiation
- cosmic chemistry
- cosmic dust
- cosmic electrodynamics
