The Summer Triangle
By Tomruen at en.wikipedia - Own workTransferred from en.wikipedia, Public Domain, https://commons.wikimedia.org/w/index.php?curid=11126314
Copyright © 2018
By Ralph F. Couey
Except cited references and images
Cheryl and I have started to spend an evening here and there at Ala Moana Beach Park as a way of decompressing from the pressures of our daily responsibilities. It's a nice place from which to watch the sunset, as our Facebook friends have noted recently. Usually by that time, the tourists have largely cleared out, so we end up with a relatively empty stretch of sand. One of the delights is an unobstructed view of the sky as it darkens, and the appearance of stars, one by one as Earth's great beacon moves below the horizon.
I have been sitting in the back yard doing this for a few weeks and while it is peaceful and relatively cool, I don't get a huge sky view because of houses and trees. Also, recently I acquired a free app on my phone called, appropriately enough, Skyview. It's easy to use. Activate it, point the phone at a particular star, and the app identifies it for you. Granted, it's a bit cumbersome, but still, it is a great educational tool for those taking their first tours of the sky.
So, this week I learned about the asterism called "The Summer Triangle." It consists of three of the brightest stars in the sky, Deneb, Altair, and Vega, the brightest, or Alpha stars of their respective constellations. (An asterism, by the way, is a stationary pattern of stars in the sky smaller than a constellation.) Never satisfied with simple answers, I undertook the task of educating myself about these bright points of light.