If in doubt

Look up and blip a light / the sky (delete as appropriate). Just on the way out the door to Tuesday football and saw that the sky was doing this and so grabbed a quick shot. Thought I might get some sort of night shot later between football and amdram committee meeting, but got distracted by grabbing something to eat en route to D's for the meeting. Just as well I did as we didn't finish until after 10pm.