NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Celnav apps for Android
From: Andrés Ruiz
Date: 2015 Mar 4, 10:49 +0100
From: Andrés Ruiz
Date: 2015 Mar 4, 10:49 +0100
Lunars added to the Nautical Almanac app.
All are free except Nautical Almanac.
For your information Google Play gets the 30% of the sales. The money I get is donated to the Vicente Ferrer Foundation.
Available on the app store:
- Equatorial geocentric coordinates: RA/GHA, Declination for Sun, Moon, and navigational stars and planets . SHA.
- SD, HP
- SHA
- Visible sky: identification of stars and planets - it plots the visible sky from a position. Polar & horizon chart
- Planning observation: phenomena - Twilight, - Rise/set for Sun and Moon, - Meridian passage
- Solar time: GAT, LAT, LMT, Equation of time
- Sidereal time (Aries): GHA, GAST, LAST, LHA
- Lunar distances
- Under development: SSD, ...
- Latitude by Polaris
- Noon sight
- Sun ex-merian sight
- Time sight for the Sun
- Latitude by the Sun´s Altitude and Time
- Observed altitude Ho by nautical almanac data
- Local hour angle (LHA)
- Marcq Saint Hilaire Line of Position, intercept method (p=Ho-Hc, Zn)
- Plot of the LoP
- Variation for the current day. (Local magnetic variation or magnetic declination)
- WMM2015 - World Magnetic Model 2015
- It calculates the two solutions, and plots the circles of position, or circles of equal altitude on a google map.
- Running fix
- Method explained in the papers:
- Vector Solution for the intersection of two Circles of Equal Altitude.
- Use of rotation matrices to plot a circle of equal altitude.
