The earliest sunrise doesn’t take place on the longest day. Things like this are what kept me out of a career in astronomy. No, the earliest morning occurs about a week before the summer solstice. It keeps staying light later in the evening, but the darkness creeps back in the a.m. I know this because I awake before sunrise and I jog at first light in the summer. For a couple of weeks now I’ve been having to start my jog later and later as I wait for the sun to catch up. The latest sunset is about a week after the solstice. Now matter how you count it, the days are getting shorter now. Another lesson I’ve learned from my early morning jogs is that it’s chilliest just before sunrise. The temperature keeps dropping from what it is around 3:00 a.m., meaning that it’s coolest just before the sun comes up. Life lessons from the jogging trail.
I took astronomy both in high school and college. Always fascinated by space I guess I was optimistic that perhaps the mathematics would’ve dropped out of it somewhere between diploma and baccalaureate. My mind is more of the humanities type, dealing with approximations and analogies. The concepts I get, but I can’t swim in formulas. One of the main sources of perplexities was just what I’ve been describing about the earliest dawn and latest evening. Shouldn’t they be the same day? And how is it that the longest day is neither the earliest sunrise nor latest sunset? Math may explain that, but I can’t. There’s a wonder in it all.
Jogs before work (for I start that early as well) are possible only a few months of the year at this latitude. They will give way to lunchtime breaks soon enough and yet summer has only just started. The days will seem longer although in fact they are getting shorter. You see what I mean about approximations and analogies? I still occasionally read books about astronomy, and when NASA (or some privately funded venture) makes announcements about what’s going on in the heavens I pay attention. Yes, I would liked to have gone into astronomy, but life has a way of steering you down certain paths. Besides, there’s a certain wonder in retaining the mystery of how the longest day occurs three times in the course of two weeks, depending on your definition.