Heliographic
Heliographic (hē`li*o*graf"ik) , adjective
1.
(Astronomy) Of or pertaining to a description of the sun.
Heliographic longitudes and latitudes of spots on the sun's surface are analogous to geographic longitudes and latitudes of places on the earth.
2.
Of or pertaining to heliography or a heliograph; made by heliography.
Collocations (1)
Heliographic chart , See under Chart.