Stress
Most people have to deal with a lot of stress in their jobs. But not you. Astronomer is one of the top fifteen least stressful jobs. But, then again, they're talking about people who have permanent positions and don't need to constantly reapply for grants and funding every two or three years because their research project/livelihood is coming to an end (and they have kids to feed and rent is due and government cutbacks are starting with everything star-related). You'll be fine. Yeah, you'll totally be fine.