Catching a glimpse of a satellite streaming by is one of the joys of watching the #nightsky. Budding #astronomers aged 9+ no longer need to leave these sightings to chance. Satellite Safari tracks hundreds, including the International Space Station. It’s full of fascinating details, for instance, when a #satellite was launched, from where and what for. Latitude, longitude, altitude, speed and brightness (visual magnitude) are all on display.