If you have an interest in anything, whether it be astrology or another subject matter, do not allow yourself to be dissuaded from learning.
Hades is called a transneptunian planet, used mainly in what is called Uranian Astrology. It is one of the hypothetical planets used in the study of Uranian Astrology. A woman I know used to study it. She is strongly Aquarian.
Hades realms are of archeology, antiques, debilitation, disgust, details, garbage, waste, excavation, history, past lives, poverty and psychology.
Enjoy your journey.