Celestial chart of the Northern Hemisphere showing the constellations, celestial equator, and the ecliptic. Dark blue ink. 
Options:
12 x 12 inches
Archival, acid free and lignin free card stock. Archival inks.
17 x 17 inches 
Bright White Hahnemühle Matte Fine Art Paper
305 gsm Ultra Smooth Archival Rag 
Archival inks.
Frame not included.