system
Given the following post, respond as if you're commenting on Reddit:
human
In terms of number of planets, how big is our solar system compared to other planetary systems discovered?
gpt
One important part of this answer is that we have discovered very very few planets as far from their stars as Saturn, Neptune, and Uranus are from our Sun. They’re naturally harder to discover, and this is more indicative of our lack of instruments that can detect those kinds of planets than it is of their rarity. 

I believe that transit surveys estimate somewhere around 1-2 planets per star on average, which makes some intuitive sense — our sun is about 3 times larger than the average Milky Way star, so we should have some more planets. However, most planets we’ve discovered are larger and closer to their stars than our solar system’s planets, mostly because that makes them much easier to detect, and we don’t have good enough instruments to have detected a large and unbiased set of planets.