This evening, December 27th, weather permitting, the International Space Station should be visible as it travels across northern mid-latitudes of North America. From my location near Kansas City Missouri the ISS will appear over the west-northwest horizon at approximately 6:13 pm CST, and be visible above my local horizon for 6 minutes before it disappears below the south-southeast horizon. Along the way it will reach a maximum altitude angle above the southwest horizon of 42 degrees; pass between two stars of the ‘Summer Triangle’, Altair and Vega; pass above the Planet Mars and Comet Finlay, and below the nearly first quarter Moon. At its greatest brightness the ISS will be between 1st and 2nd magnitude, brighter than the stars of the Big Dipper.
Much of my information for the ISS comes from NASA’s ISS Sightings web site. From there you may tailor the predictions very specifically for your location. I then use an Astronomy program on the PC and also one on my Kindle to see the path it will follow and what if any other celestial objects it may pass. Read a little more about viewing the ISS and Iridium Flares, as well as suggestions for taking pictures of these Earth orbiters.
The slideshow below shows the ISS at 1-minute intervals. Since this event is after sunset I have touched up the graphics – brightened and re-colored to make the scene more visible.
Click here to go to the Qué tal in the Current Skies web site for more observing information for this month.