Calculate celestial positions in real-time
Calculate precise celestial positions using real-time data from 1900 to 2050. Input date and time to instantly recalculate GHA and declination for the Sun and Aries.
Showing 61–80 of 1,000 ranked alternatives.
Omar reis
Calculate positions, track objects, plot lines
Navigation provides perpetual almanac and star finder chart with animation. Calculates lines of position, object data, and meridian passage. Supports running fixes and astronomical position calculations with multiple star observations.
What3Words Limited
Navigate to precise locations with three words
Find precise locations using three unique words. Share and navigate to exact meet-up points. Locate apartments, businesses, or parking spaces. Save key locations for incident reporting or reference.
FB Imray Laurie Norie & Wilson GmbH
Worldwide tides for maritime activities.
The app provides tide information for over 8,000 worldwide locations without requiring an internet connection. It offers tidal graphs, week-ahead tide tables, and tools for calculating time windows for various maritime activities.
Bist LLC
Navigate property lines and hunting zones
Navigation allows users to view property line , parcels, and public lands. Access land ownership details and map layers for 50+ states including hunting zones and restricted areas.
Carob Apps, LLC
Plan routes with weather and elevation.
The app plans optimal routes or allows users to chart their own course using weather and elevation data. It provides voice-guided navigation with automatic severe weather alerts to ensure safe travel.
David Morneault
Track routes, save waypoints, navigate outdoors
Track outdoor activities like hiking, biking, walking, and running with GPS. Save and navigate to waypoints. Store favorite destinations. View activity logs and maps. Share routes and track progress.
Driver Technologies Inc.
Track trips, get support, and stay connected
Track trips with location, speed, and G-force data. Access roadside assistance, claims support, and liability protection. View weather conditions and telematic events. Manage education and legal resources.
Zipo Apps Ltd.
Track location with GPS and MGRS coordinates
Determine location using GPS and MGRS coordinates. Display latitude, longitude, and altitude. Show 16 main directions. Operate offline. Suitable for camping and outdoor navigation.
Bist LLC
Navigate with and river
Access for the USA, Canada, UK/Ireland, Germany, Netherlands, and European rivers. View NOAA vector , freshwater lake maps, and USACE inland river maps with bathymetry data. Create or import GPX/KML routes. Use voice prompts for route navigation.
GEC s.r.l.
Download charts, navigate offline, connect instruments
Navigate using weekly updated nautical charts from NOAA. Plan routes manually or automatically. Record GPS tracks and store navigation data including markers and routes. Share data with others. Display tides and currents.
Surfline/Wavetrak
Track fish with SST and tide data
Access real-time sea surface temperature maps, high-definition satellite imagery, and marine weather . Track water color, currents, tides, and moon phase. Mark and save GPS locations for temperature breaks and color barriers.
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