Is this Astrology site too good to be true?

I dont want to name them but the site seems fake because there are literally over 1000 celebrity birthcharts. Bill Gates, Jimi Hendrix, Jennifer Lopez, Michelle Williams...you name it, the list goes on. Its very entertaining to look at their birthcharts but how the heck did they get all of their birth details including the birth time which is rare. Some of the times are 0300, 1700, 0500 but others like Angelina Jolie are 9:09pm 4:45am.... Is it possible? Though its very interesting and impressive butI dont want to be wasting my time if its not real!!