Surya Siddhanta
उपरिष्टस्य महती कक्षाल्पाधःस्थितस्य च । महत्या कक्षया भागा महान्तो +अल्पास् तथाल्पया॥
The orbit (kakshd) of one that is situated higher up is large ; that of one situated lower down is small. Upon a great orbit the degrees are great ; so also, upon a small one, they are small.
english translation