"Internet nexus of cultural Judaism" — Examiner.com
Tycho was pretty cool. I remember doing a report on him in 6th grade (yeah, I was a nerd). However, I can't say there's anything even remotely Jewish about him. It's quite possible that he never saw a Jewish person in his lifetime. Oh well. I'm glad that I now know the K score of one of my favorite astronomers (I'm still kind of a nerd).