Why is the stargazing forecast wrong?
Follow these steps to increase your chances of finding the best clear nights:
- Check your location
Make sure your location is correct. The name or the coordinates of the location are shown on the bottom bar, and a map of the location can be found in the menu (hamburger icon). By default, Nightshift launches with your current location but additional locations can be added in Menu > Observing locations.
- Update the weather forecast frequently
Make sure the weather update frequency is set to 1 hour in Menu > Settings to get the latest forecast as soon as possible.
- Check other weather sources
Compare the forecast in Nightshift with other, preferrably local, forecasts. On the Weather card on the Forecast tab, a link to a website comparing several weather models can be found under Weather tools. This will give you a much better idea of the conditions on a given night.
- Check the cloud cover satellite images
The actual cloud cover of the last hours can be studied on the Now tab.
- Understand how Nightshift calculates stargazing conditions
Besides weather, Nightshift also takes other factors into account when calculating the conditions for a given night. One of them is the duration of darkness. So if the Moon is up, or the nights are short due to summer time, it is possible that the forecasted conditions are not good even though it’s a clear night.
- Last but not least: weather forecasting is not an exact science
Nightshift uses the weather forecast from OpenWeatherMap. Although weather models are improved all the time, it’s still difficult to accurately predict cloud cover from hour to hour. If the forecast is wrong, you can disable it in Menu > Settings.