The following table shows 10 locations with Sun near zenith position in the sky. The table below shows position of the the Moon compared to the time and date above: Time The ground speed is currently 392.68 meters/second, 1413.6 kilometres/hour, 878.4 miles/hour or 763.3 nautical miles/hour (knots). On Monday, 5 June 2023, 18:08:00 UTC the Moon is at its zenith at Latitude: The table below shows position of the the Sun compared to the time and date above: Time The ground speed is currently 428.45 meters/second, 1542.4 kilometres/hour, 958.4 miles/hour or 832.8 nautical miles/hour (knots). On Monday, 5 June 2023, 18:08:00 UTC the Sun is at its zenith at Latitude: Business Date to Date (exclude holidays).Those measurements can be used to determine the intensity and source of light over a number of years. Skywatching terms Night sky observing tips (Image credit: Celestron) The night sky tonight and on any clear night offers an ever-changing display of fascinating objects you can see, from. VIIRS detects light reflected from Earth's surface and atmosphere in 22 different wavelengths and it is the first satellite instrument to take quantitative measurements of light emissions and reflections. NASA's "workhorse" on the project is the Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi National Polar-orbiting Partnership (Suomi NPP) weather satellite. However, new technology is improving the process. The team behind the photo must take into account the phases of the moon as well as "seasonal vegetation, clouds, aerosols, snow and ice cover, and even faint atmospheric emissions (such as airglow and auroras) change the way light is observed in different parts of the world." The last time NASA released a global map like this was in 2012, and the agency says these nighttime world maps are both a "gee-whiz curiosity for the public and a tool for fundamental research for nearly 25 years." Creating such an image is difficult and time consuming, as light on the planet is constantly shifting.
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