Perpetual Nautical Almanac

Using the U.S. Naval Observatory NOVAS library and solar system ephemerides from JPL, high precision positions can be calculated in real-time from 1900 to 2050. Simply select date and time and all values are recalculated instantly. The estimated elevation value is only needed for calculating sunrise/sunset, twilight, and moonrise/moonset. The app provides the following functionalities: *Aries: GHA position *Sun: -GHA/dec - Astronomical dawn, nautical dawn, civil dawn, sunrise, sunset, civil dusk, nautical dusk, astronomical dusk, and meridian passage at Greenwich. - Semidiameter - Sunlight world map with the Sun and the Moon position. *Moon: - GHA/dec - Moonrise/moonset and meridian passage at Greenwich. - Semidiameter - Moon phase and age of the Moon. *Planets: - GHA/dec for Venus, Mars, Jupiter, and Saturn. *Stars: - Magnitude, SHA/dec of 99 stars ordered by SHA. *Corrections: - Correction for the atmospheric refraction. - Correction for the dip of the horizon. - Parallax correction for the Moon, the Sun, Venus, and Mars.

Correction for possible crash when retrieving GPS location. Corrected astronomical sunset & sunrise (duplicated nautical values were being displayed)

개발사

RPA Technologies

주 카테고리

Navigation

현재 버전

2.01

버전 출시일

2025-02-10

최초 출시일

2019-10-10

용량

123 MB

연령 등급

4+

가격

USD 6.99

언어

EN

번들 ID

com.rpatec.Perpetual-Almanac

현재 버전 평점

★ 5.00 (1)

첫 수집

2026-05-28

메타데이터 갱신 2026-06-14

무료 기준 · 최대 90일 · 상위 5개 카테고리 표시 (Y축: 순위, 낮을수록 상위)

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