**swimming Masters at noon**is that we get to observe the

**sun's transit**on a daily basis. [The sun's transit is its highest point in the sky each day. Throughout the year, this usually occurs sometime between 12:00 Noon and 1:20 PM — depending on whether we're on standard or daylight time.]

This time of year (Solstice time), the sun marks its transit **at approximately 76º high** in the sky at our latitude. Today this occurred at about 1:09 PM for our location (according to my celestial data app). [**Stanford's latitude is 37.42º**. Subtract from that number 23.5º which is the earth's tilt = 13.92º. Subtract 13.92º from 90º (directly overhead) and you get approximately 76º.]

**For the second straight year, Noon Masters observed this passage.**Rocket scientist Steve Fuselier (right) and I (left) measured a vertical poolside pole and the length of the shadow it casts at 1:09 PM. Having two sides of a right triangle, we then did a simple

**trigonometry calculation (tan-1)**to determine the sun's height at its transit. According to our crude measurements, we calculated about 76º+. So, we were pretty close.

What does this all mean?

**If you swim at noon, you get the shortest shadows of the day. And today's was the shortest of the year!**

As Carl Spackler would say:

**"So we've got that going for us . . . which is nice."**[Make sure you check out this video]