The STAR-FINDER is a concept of the U.S. Naval Oceanographic Office and graphically displays the altitude and azimuth of the 57 selected fixed stars of the Nautical Almanac.
The variable positions of the sun, moon and planets can be marked separately.
Why Starglobe or Starfinder?
Starglobe and starfinder are used to convert alternately celestial to horizontal coordinates of a star.
Where is this or that star now at my position? The celestial coordinates: local hour angle and declination are found in the Nautical Almanach. Adjust Starglobe or -finder accordingly. Now read the horizontal coordinates: azimuth or direction and height of the star.
Conversely the celestial coordinates and name of the unknown star can be concluded from azimuth and height. This simplifies astronavigation with the sextant:
- Observing an unknown star between cloud snatches. Sextant height and approximate direction can be determined. Now it is possible to find the celestial coordinates and with them the name of the star to calculate a line of position.
- The planet Venus is invisible in the daytime. Use Starglobe or -finder to determine direction and height. Now Venus will appear when observing through the sextant telescope.
Also, many navigational calculators include easy to use programs to solve these problems.
- 1 x double-sided base plate for northern and southern hemisphere
- 9 x transparent height/azimuth panels for 10 latitude intervals
- 1 x transparent height diagram
- English user manual
- Plastic bag