【實用交通運輸app】iNA Digitial Nautical Almanac|最夯免費app-綠色工廠好玩App

iNA computes all ephemeris data available in the daily pages of the USNO Nautical Almanac. This information is required when doing astronomical computations for celestial navigation, local noon, sunrise, and others. The program computes GHA, Dec, SHA, SD, HP, magnitudes, sunrise, sunset, LAN, twilight times, moonrise, moonset, moon age and phase for sun, moon, 5 planets, and 173 stars. INA also computes addition useful information not included in the Nautical Almanac such as ephemeris for Mercury, Hc at LAN, bearing of sunrise and sunset (amplitudes), and the GHA of Aries midway between civil and nautical twilights for star planning.INA's internal celestial almanac is valid for the years 1582 through 2800 AD.iNA requires no external resources to complete its computations. Internet access is not required to use this program or to access any of its help files.