Various instruments atop the Keck Observatory weather mast. At the top is a sonic anemometer, top left is MastCam, top right is the pricipitation sensor and at the bottom can be seen the housing for temperature and humidity sensors.
When you want to see the stars, find someplace dark
Various instruments atop the Keck Observatory weather mast. At the top is a sonic anemometer, top left is MastCam, top right is the pricipitation sensor and at the bottom can be seen the housing for temperature and humidity sensors.