Either way, one thing about astronomy I find really fascinating is how people are able to figure out so much from so little data[0]. The amount of head scratching and the number of sleepless nights spent trying to make sense of what little data is available must be almost as mind-bending as the stellar bodies astronomers study.
[0] "little" compared to what we could gather if we could just hop aboard the good old Enterprise and jet over to a couple of nearby stars, or at least take a quick field trip to Neptune...