Manufacturer: Cassens & Plath

Star Globe

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SKU: JG_551

Starglobe

Spherical model of the starry sky with star coordinates and scale for declination. The globe can be revolved according to the local hour angle and the world axle can be inclined according to the geographic latitude. A likewise movable scale for the horizontal coordinates gives height and azimuth. A pencil for making of wandering or not show stars like sun, moon pr planets is included. Housing made of aluminum, light grey finish. Removable protection cover with grip. Diameter of sphere 168 mm. Dimensions 250x220 mm height. Weight 2,6kg.

Why Starglobe or Starfinder?

Starglobe and starfinder are used to convert alternately celestial to horizontal coordinates of a star. Question: 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 conclued from azimuth and height:

This simplifes astro navigation with the sextant:

Observing an unknow star between cloud snatches. Sextant height and approximate direction can be 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 determinate 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.

Technical data
Total height 210 mm
Diameter of globe 170 mm
Weight star finder 2,2 kg
The Starfinder is an indispensable means for
◦the finding of stars and zodiacal signs
◦the nomenclature of a measured star or the approximate pre-setting for sextant measurements
◦the representation of the celestial movements of stars

Observing an unknow star between cloud snatches. Sextant height and approximate direction can be 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 determinate 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.

Technical data
Total height 210 mm
Diameter of globe 170 mm
Weight star finder 2,2 kg
The Starfinder is an indispensable means for
◦the finding of stars and zodiacal signs
◦the nomenclature of a measured star or the approximate pre-setting for sextant measurements
◦the representation of the celestial movements of stars

Star Globe

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