Celestial Nav 4+
Skytip LLC
专为 iPad 设计
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- 免费
- 提供 App 内购买项目
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简介
Celestial Nav is an easy to use, all-in-one tool which offers:
• Celestial navigational computations for your device
• Simple toolbar menu for quick access
• Internally stored perpetual Almanac
• Offline ready and functional without the need for other external tools
• Quick and easy capture celestial observation data
• High accuracy sight reductions
• Star reference tables
SIGHT PLANNING
• Local Hour Angle (LHA) for Aries
• Star tables sorted by name, magnitude, declination, and SHA
• Sunrise, sunset, twilight, and location reference
• Moon phase reference
SIGHT REDUCTION
• High accuracy sight reduction algorithm
• Perpetual Almanac offering accurate data for years 1600 - 3000
• Almanac data for Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn
• Detailed Almanac data for 58 navigational stars
• Assumed Position (AP) for any user defined position
• Line of Position (LOP) intercept data for accurate course and speed adjustments
• Computational variables displayed for accuracy and validation
CELESTIAL FIX
• Computations by USNO algorithm in the Nautical Almanac
• Save all your LOP in an easy reference table
BASIC VERSION
Free daytime celestial navigation tools using the sun:
• Unlimited sextant sight reduction calculations
• Sight reduction to a line of position using the sun
• Perpetual almanac for the sun
• Advanced sight corrections for index error, eye height, temperature, and pressure
• Support for upper and lower limb reference
• Star Table with navigational references
• Detailed Sun references
• Limited Moon references
PRO FEATURES (IN-APP PURCHASE)
Advanced Day & Night Celestial Navigation includes all BASIC features plus:
• Almanac data for 65 navigational bodies for years 1600 through 3000
• Map display for saved LOPs
• View intercepts with course and speed corrections
• Metric and imperial unit support with automatic conversions
• Support for coordinate entries in different formats (H° M’ S” or Decimals)
• Save all your LOP calculations for future reference
• Save user preferences and settings
• Unrestricted moon references
• Almanac and algorithmic models for 65 navigational bodies:
• Sun, Moon, Mercury, Venus, Mars, Jupiter, and Saturn
• 58 navigational stars
Supported stars: Acamar, Achernar, Acrux, Adhara, Aldebaran, Alioth, Alkaid, Alnair, Alnilam, Alphard, Alphecca, Alpheratz, Altair, Ankaa, Antares, Arcturus, Atria, Avior, Bellatrix, Betelgeuse, Canopus, Capella, Deneb, Denebola, Diphda, Dubhe, Elnath, Eltanin, Enif, Fomalhaut, Gacrux, Gienah, Hadar, Hamal, Kaus Australis, Kochab, Markab, Menkar, Menkent, Miaplacidus, Mirfak, Nunki, Peacock, Polaris, Pollux, Procyon, Rasalhague, Regulus, Rigel, Rigil Kent., Sabik, Schedar, Shaula, Sirius, Spica, Suhail, Vega, Zubengenubi
REFERENCES
Sight reductions and celestial calculations use various internationally accepted references for the most accurate results:
• Jean Meeus - Astronomical Algorithms
• US Naval Observatory (USNO) Almanac and Algorithms
• Hipparcos New Astrometric Catalog, Published 2007
• ELP2000-85
SUBSCRIPTION TERMS
Celestial Nav is free to download and the basic features free to use. A paid upgrade to the PRO version provides access to premium features and additional tools.
We may offer trial subscriptions that give limited time access to all PRO features and premium content for the duration of the trial period. Trial subscriptions automatically expire and the app will revert back to the Basic version thereafter. No data is lost but access and use of premium features will no longer be available.
新内容
版本 3.1.3
Version 3 of Celestial Nav brings a NEW Noon Sight feature to calculate latitude and longitude.
The PRO version has advanced noon sight methods such as plotting a noon curve with multiple sights to determine the most accurate zenith of the sun and improve overall accuracy.
Tooltips and help features continue to be expanded. Various titles and labels display definitions and further guidance when tapped.
New:
- High accuracy display of azimuth to support commercial marine navigation (Gyro Error Check).
Fixes:
- Sun label updates to mark beginning and end of Civil, Nautical, and Astronomical twilight.
- crash fix for code error in 3.1.1
订阅
App 隐私
开发者“Skytip LLC”已表明该 App 的隐私规范可能包括了下述的数据处理方式。有关更多信息,请参阅开发者隐私政策。
未与你关联的数据
开发者可能会收集以下数据,但数据不会关联你的身份:
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信息
- 提供者
- SkyTip LLC
- 大小
- 15.9 MB
- 类別
- 导航
- 兼容性
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- iPhone
- 设备需装有 iOS 15.0 或更高版本。
- iPad
- 设备需装有 iPadOS 15.0 或更高版本。
- iPod touch
- 设备需装有 iOS 15.0 或更高版本。
- Mac
- 需要 macOS 12.0 或更高版本以及装有 Apple M1 或更高版本芯片的 Mac。
- Apple Vision
- 设备需装有 visionOS 1.0 或更高版本。
- 语言
-
英语
- 年龄分级
- 4+
- Copyright
- © 2024 Skytip LLC
- 价格
- 免费
- App 内购买项目
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- PRO Version ¥53.00
- PRO Version ¥68.00
- PRO Version ¥14.00
- 30 Day Trial License ¥22.00
- PRO Version Lifetime ¥168.00
- 7 Day Trial License ¥8.00