Distance

Milky Way (Sagittarius) and path of Boeing 777-300 airliner behind elementary school, Gorham, NH.
Milky Way (Sagittarius) and path of Boeing 777-300 airliner behind elementary school, Gorham, NH.

I tried this shot last fall, my first at this school. My focusing then was terrible (and didn’t get much better for this one), but the biggest problem was the pair of lights in the vestibule. I just couldn’t find the switches to turn them off. For the 30 second exposure necessary to get the stars in the background, the lights overwhelmed just about everything.

With the beautiful weather of the past few weeks, I wanted this shot again. I asked one of the custodians where the light switch was, and he informed me that there aren’t any. He said I could unscrew the little jars covering the bulbs, then unscrew the bulbs themselves as long as I put them back when I was done. I asked, “Can I do that?” He shrugged and said, “Sure, you’re the principal.”

I don’t think I’ll ever get used to that.

Anyway, the red streak is the exposed lights on a Qatar Airways flight from JFK (about 300 miles south west of us) to Doha. The plane had taken off in the past hour and was just settling in for a 10-hour voyage to the Middle East. So we have the school, 30 feet away; the plane, 30,000 feet away; and a little farther back, the supermassive black hole at the center of our galaxy, 1.4×1017 feet away.

Give or take.

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