Perpetual Nautical Almanac 4+

RPA Technologies

專為 iPhone 設計

    • HK$ 32.00

iPhone 螢幕截圖

描述

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.




最新功能

版本 1.3.5

Corrected incompatibility with iOS 16.1

App 私隱

開發者表明RPA Technologies的私隱慣例或包括下列資料的處理。詳情請參閱開發者的私隱政策

不收集資料

開發者不會從此 App 收集任何資料。

私隱慣例或因使用的功能或年齡等因素而異。進一步了解

支援

  • 家人共享

    啟用「家人共享」後,多達六位家庭成員可以使用此 App。

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