Iridium and Orion | Francis Dunlop

Francis Dunlop
Location of photo
Calgary AB
Date/Time of photo
22-Feb-2008 7:49pm MST
Canon XTi, 17mm-55mm f/2.8 EF-S lense at 17mm f/4, tripod mount, ISO 400, 20 second exposure, automatic "dark" subtraction turned off so I could shoot back to back photos without a "Delay" between photos.
Picture shows Orion (on right), Sirius (bottom) and flare from "Iridium 30" at mag. -2.5. Larger version of flare is inset. I got the timing info from A second Iridium (Iridium 94) flared 2 minutes later.