Top 6 Apps Similar to Sight reduction

Nautical astronomy (Celestial navigation,Astronavigation):-Latitude by Polaris - Latitude by Noon sight -Latitude bySunex-merian sight - Latitude by the Sun´s Altitude andTime -Timesight for the Sun Take the sextant and shoot the Sun ortheNorthStar. Practice with it using the old methodsofastronomicalnavigation, and let this app do the calculationsforyou! HELP 1 -Tap on Date, Time, DR, Hs and sight parameterstoenter the data. 2- Choose the calculation in the combobox. 3 -Push[Calculate] andthe solution is written. [+]: resets the formfornew data.[Examples] - Loads the data of the chosen example. -SeeAbout.[Location] Sets the position for training purposes.-Threemethods: using Google Maps, GNSS fix, by input dialogbox.-Location App permission must be allowed. - Switch on yourGPS,andthen automatic location detection is possible. - MyLocationbuttonis available on Google Maps. Your last positionisautomaticallysaved - Storage App permission must be allowedManualand examplesat the developer's website.

For training or improving your skills with a sextant.

Fix by two circles of position: vector solution.Celestialnavigation.

The Nautical Almanac in your smartphone or tablet

Transas iSailor is an easy-to-usenavigationalsystem developed for the amateur seafarers. Intendedfor use onboats and yachts, iSailor provides a clear presentationofnavigation information and electronic charts. Transas ownTX-97vector chart format supported by iSailor is recognizedworldwide asone of the most accurate and reliable sources ofnavigationalinformation.Available Chart Folios cover coastal and offshore waters ofNorthAmerica, Latin and South America, Europe, Africa, Middle East,FarEast, Asia, Australia & New Zealand. All chart folios canbeselected, purchased and downloaded via the Transas iSailorappusing its Chart Store section. Purchased chart folios includesaone year Chart Updates subscription service of yourchosencoverage. At the end of one year you can choose to renew yourChartUpdates subscription service or continue to use the chartsyoupreviously purchased and downloaded.• Positioning system:- Internal GPS (if available, through the AndroidLocationProvider)- NMEA GPS over Wi-Fi (TCP/UDP connection)- AIS class B Transponder (TCP/UDP connection)- Bluetooth NMEA GPS through the Android LocationProvide("Bluetooth GPS Provider" app is needed)• Navigation sensors support: GPS, Compass & ROT (TrueorMagnetic Heading), Wind, Echo-Sounder• AIS targets support: AIS Class A, AIS Class B, AIS Receiver,BaseStations, Aids-to-Navigation (AtoN)• Display of Charts and Routes• North Up, COG Up and Route Up chart orientations• Information on any vector chart objects• Free cursor, Point-To-Point and Own Ship referencedERBLfunctionality• Monitoring of navigational data: Position, Course (COG) andSpeedOver Ground (SOG)• Route creation by the graphic methods. “Go To” routes• Alarms & Warnings• Waypoint monitoring: Bearing to WP, Distance to WP, XTD• Schedule information: Time-To-Go and ETA to any selectedwaypointahead• Day and Night chart palettes• Track recording• Import & Export for Tracks and Routes• Multi-UnitsCompatible with Android versions since 4.4.x (API level 19)andhigher!List of supported and tested devices:Tablets:• Google Nexus 7 (2013)• Samsung Galaxy Tab S• Samsung Galaxy Note 8.0• Samsung Galaxy Tab Pro 8.4• Samsung Galaxy Note 3• Sony Xperia Z2 Tablet• Lenovo A3300-HV• Lenovo YOGA Tablet 2 ProSmartphones:• Samsung Galaxy S4• Lenovo S60• Samsung Galaxy A3• HTC Desire 630• Asus ZenFone Z00ADWe cannot guarantee correct operation on non-tested devices.Ourteam will continue to improve the application performance,keepingyou informed about our progress in the upcomingreleases.iSailor web site http://www.isailor.usAny questions? Feel free to contact us at [email protected] Yours,Transas iSailor team

Variation for the current day. Used in navigation with amagneticcompass.