The Collaborative International Dictionary
Heliocentrical
Heliocentric \He`li*o*cen"tric\ (h[=e]`l[i^]*[-o]*s[e^]n"tr[i^]k), Heliocentrical \He`li*o*cen"tric"al\ (h[=e]`l[i^]*[-o]*s[e^]n"tr[i^]*kal), a. (Astron.) pertaining to the sun's center, or appearing to be seen from it; having, or relating to, the sun as a center; -- opposed to geocentrical.
Heliocentric parallax. See under Parallax.
Heliocentric place, latitude, longitude, etc. (of a heavenly body), the direction, latitude, longitude, etc., of the body as viewed from the sun.
Wiktionary
heliocentrical
a. (alternative form of heliocentric English)