If you haven't already done so, you need to specify your location, but you only need to do it once. You can either enter coordinates and time zone manually, or select a location from our database by clicking one of the links below. Once you've done this, you will end up at the main menu page, and your selected location will be indicated near the top. If you simply save this page as a bookmark or favorite, the location details will be saved in the address, and you don't need to specify them again if you load the bookmark. If you regularly observe from several locations, you could save a different bookmark for each one.

Select a location from the database or Specify a location manually