I saw several satellites in the sky before the flare, and a few planes but not enough to ruin my shot. I started my camera on back to back shots at f/5.6, 18mm, 15 sec, 1600 ISO. I ended up with the typical yellow light dome over the horizon, but when I ran the photos through Snapseed on my phone, the "automatic" filter did a super quick and actually very decent job highlighting the stars against a natural looking sky. I guess that's why they call it SNAPseed, it's a snap!
It blows my mind that it's possible to calculate that the right antenna of a satellite 1192 km away will catch the sun just right to shine a beam of light onto Noblesville, and to predict it to the exact second.
|2 frames stacked to show full duration of the flare, close crop|
|2 frames stacked, no other edits - the flare was about 30 seconds long so each of my 15 second frames caught part of it|
|StarStaX stacked star trails with Iridium 39 flare - "automatic" filter in Snapseed|
|2 frames with the flare by itself, also edited in Snapseed "automatic" mode|