Night Sky Tools is the ultimate collection of astronomical tools perfect for anyone interested in astronomy. The calculations are of a high enough accuracy for almost all amateur astronomy applications. Due to the fact that astronomy is often best when far from civilization where mobile signal may not always be reliable. Therefore, this app is (almost) completely self-contained and does not require any internet connection for most of the information available. The only exceptions to this are the SOHO solar images and NGC/IC, Messier, Caldwell and Binary star images and weather forecast which are loaded dynamically, as well as the refreshing of satellite, comet and near-earth asteroid data. Night mode turns the display red for night observations without having to ruin your night vision. The Sky Map makes use of the direction sensors of the device to show the sky above (or below you). The Astronomical Time is also available as a Home screen widget.
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