Astro Bob's Backyard Astronomy: "It must have been airglow..."*
Though a major storm swept across the Northland last night, Bob King headed south toward Barnum where he found a patch of open sky. In the next couple hours, there was a lot happening (besides the very abundant, very vocal frog population surrounding him).
- Though not as numerous as some astronomers were hoping it would be, the Tau Herculids meteor shower did appear, and Bob was able to capture some photographs. Here is one:
- He also witnessed a lovely display of airglow (see the photo at the top of this article, and its caption).
- Coming up in June, around the summer solstice, see if you can spot noctilucent clouds in the evening twilight. Bob writes, “The clouds form on meteoric dust about 50 miles high. They're Earth's highest clouds and appear low in the northern sky starting about 45 minutes to an hour after sunset (and before sunrise) during summer evenings. June is the best month to spot them.”
* The title of this article is a play on the lyrics from "Moonglow" by Eddie DeLange (©1933 Mills Music, music by Will Hudson and Irving Mills)