Aspects is the Astro term for the mathematical relationship between each of the planets in your chart.
There are five main types with I am discussing today
Chart example is Queen Liz http://www.astro.com/astro-databank/Elizabeth_II,_Queen_of_England
And mention of Indigo Children's charts more info here
Remember if you'd like to learn Astrology one-on-one with me, more info here