The words astro-nomy and astro-logy are similar, but this is no "fluke".

There's a Wikipedia article with some history: https://en.wikipedia.org/wiki/Astrology_and_astronomy

I imagine astronomers have been sighing resignedly at dinner parties for a couple of millenia:

In the Hellenistic world, the Greek words 'astrologia' and 'astronomia' were often used interchangeably, but they were conceptually not the same.

In his compilatory work Etymologiae [c. 625], Isidore of Seville noted explicitly the difference between the terms astronomy and astrology (Etymologiae, III, xxvii) and the same distinction appeared later in the texts of Arabian writers.

Yes, when I introduce my interests to new people these days I say "night-sky watching", instead of astronomy, just to avoid this problem.

"Astronomy? You don't really believe in all that nonsense do you? Jane, this guy believes those horoscopes in the paper!"

Sigh