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Celestial Nav 4+
Modern Celestial Navigation
Skytip LLC
Designed for iPad
-
- Free
- Offers In-App Purchases
Screenshots
Description
FREE Basic Access*** Advanced marine and land based sight reductions using an offline perpetual almanac. Tool for accurate navigation, education, and training.
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.
What’s New
Version 3.1.5
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.
Bug fixes:
- improved Upgrade experience
- fix crash caused by multiple fast tabs on the same menu
Subscriptions
App Privacy
The developer, Skytip LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
Privacy practices may vary based on, for example, the features you use or your age. Learn More
Information
- Provider
- SkyTip LLC
- Size
- 15.9 MB
- Category
- Navigation
- Compatibility
-
- iPhone
- Requires iOS 15.0 or later.
- iPad
- Requires iPadOS 15.0 or later.
- iPod touch
- Requires iOS 15.0 or later.
- Mac
- Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
- Apple Vision
- Requires visionOS 1.0 or later.
- Languages
-
English
- Age Rating
- 4+
- Copyright
- © 2024 Skytip LLC
- Price
- Free
- In-App Purchases
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- PRO Version USD 7.99
- PRO Version USD 9.99
- PRO Version USD 1.99
- 30 Day Trial License USD 3.99
- PRO Version Lifetime USD 29.99
- 7 Day Trial License USD 0.99