He`li*o*graph"ic (?), a.
Of or pertaining to heliography or a heliograph; made by heliography.
Heliographic chart. See under Chart.
© Webster 1913
He`li*o*graph"ic, a. (Astron.)
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.
© Webster 1913