It’s entirely up to you, if it resonates or not. Some like it and others think it’s entirely non-valid. It’s called Solar Chart, and I like it because it feels to me like ancient archetypical astrology before math and calculations.
This is how astrologyweekly is describing it:
Definition of Solar Astrology The presumption that the Solar Horoscope is of value only as a make-shift when an exact hour of birth is unobtainable, is rapidly giving way to a realization of its genuine merits. Strictly speaking, it is not an hour-scope but a day-scope; yet it is the same cycle of hour-to-hour dally experiences through a rising series of sensitive points, whether it begins with an ascendant degree or with the omnipotent Sun degree.
I’m still wrapping my mind around it.