Description

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.

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In-Apps

PRO Version: 2,49 USD
7 Day Trial License: 0,99 USD
30 Day Trial License: 3,99 USD
PRO Version Lifetime: 22,99 USD

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Category Rankings

Chart	Category	Rank
Top Grossing	Philippines Navigation	32
Top Free	Philippines Navigation	178
Top Free	Egypt Navigation	239
Top Free	Romania Navigation	310
Top Free	Vietnam Navigation	335

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