PerpetualNauticalAlmanac

PerpetualNauticalAlmanac是一款导航类型的app，为您提供最新PerpetualNauticalAlmanac官方IOS版下载。

UsingtheU.S.NavalObservatoryNOVASlibraryandsolarsystemephemeridesfromJPL,highprecisionpositionscanbecalculatedinreal-timefrom1900to2050.

Simplyselectdateandtimeandallvaluesarerecalculatedinstantly.Theestimatedelevationvalueisonlyneededforcalculatingsunrise/sunset,twilight,andmoonrise/moonset.

Theappprovidesthefollowingfunctionalities:

*Aries:GHAposition

*Sun:

-GHA/dec

-Astronomicaldawn,nauticaldawn,civildawn,sunrise,sunset,civildusk,nauticaldusk,astronomicaldusk,andmeridianpassageatGreenwich.

-Semidiameter

-SunlightworldmapwiththeSunandtheMoonposition.

*Moon:

-GHA/dec

-Moonrise/moonsetandmeridianpassageatGreenwich.

-Semidiameter

-MoonphaseandageoftheMoon.

*Planets:

-GHA/decforVenus,Mars,Jupiter,andSaturn.

*Stars:

-Magnitude,SHA/decof99starsorderedbySHA.

*Corrections:

-Correctionfortheatmosphericrefraction.

-Correctionforthedipofthehorizon.

-ParallaxcorrectionfortheMoon,theSun,Venus,andMars.

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最近更新

CorrectedincompatibilitywithiOS16.1