No, not exactly. Many are picked out by the route planner, but most stars found are not the ones I jumped to, and I am not specifically looking for them. A system can have say four or five stars, but only one of those was the one the planner picked out. I wasn't suggesting these are rare in the absolute sense. But when you've scanned thousands of celestial bodies and have found just a single example of something, it becomes rare in the relative sense doesn't it, which is why I prefaced it with 'of the things I've found'. Anyway, it was just an interesting factoid about my specific expedition.