descriptions of markings on the sun, a planet or moon
• (n.) A description of apparent spots on the disk of the sun, or on planets.
Cel`i·dog'ra·phy noun [ Greek ..., ... stain, spot + -graphy : confer French célidographie .] A description of apparent spots on the disk of the sun, or on planets. 
celidography, celidograph A description of the spots on the sun or planets.