
The excellent weather this week was perfect for pleasant evening walks and a bit of star gazing. Just after 10PM this evening I was able to photograph a man-made star: the International Space Station heading east over Boise. The 20 second exposure shows the ISS in the center along with two planes heading west to the airport. The ISS rose out of the west and was visible for about 3 minutes as it flew overhead.
For a few days each month the ISS orbit takes it over Boise just after sunset. With the sky getting dark here, the ISS is high enough, at 300-700 miles, to still be illuminated by sun. The large solar panels are also great solar reflectors.
Wednesday night, the 28th, has two passes that might provide an opportunity to see the ISS. At 8:47PM the ISS will rise out the NW, climb nearly overhead and set in the east. If the sky is dark enough it may be visible from about 8:50 when it's overhead. Later, at 10:23PM it will rise in the west, climb low in the southwest sky and set towards the south. It may be visible for only a minute or two around 10:27PM.
Find out more at NASA's website: spaceflight.nasa.gov/realdata/sightings
Click on "Start Applet" and enter your zip code to run the application.