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PROJECTION
CYLINDERS
The cylinders, which act as projection frames, are constructed of materials quite similar to Celluloid. The stars and other sky objects are part of the cylinder. Illumination is accomplished by
the use of light bulbs inside the cylinders - the standard type system for this class of planetarium.
STAR CYLINDER SPECIFICATIONS
Canopus star cylinders are manually created and digitized into our special design program. Two important considerations were placed into our system: (1) correct magnitudes
and (2) compensation for image deviation near the edges of the cylinders.
It is important to note that these factors are not always included in competitive systems. Because Canopus believes their inclusion is a necessity, our brightness of our
stars are with the correct magnitude. The result is that Canopus provide its customers with the finest and most authentic representation of the night sky.
Because Earth’s northern and southern hemispheres are separated by our planet’s equator, we have placed the stars in each hemisphere on two projector platforms. The advantage of this
system is that the viewer sees all of the stars, in both hemispheres, and at the same time.
This is accomplished without the need to change cylinders in order to view both hemispheres. There are no visible elements or supports to interfere with the sky image - allowing one to
project the Milky Way with or without stars.
To produce a realistic projection,
the cylinder projection have a special lens displaying the brightest star of
firmament ( Sirius). Accomplished without the need
of increasing the artificial diameter of the star.
Customers have the option to request six more stars with their orders:
Canopus, Alpha Centauri, and Arcturus. The cylinders are located together in the base of each
cylinder with three attaching devices so that they may be easily removed and replaced by other selections.
Customers may choose one of three star cylinders with their CANOPUS projector:
Each of the three cylinders projects stars in six colors as well as 13 naked eye objects: galaxies, nebulae, star clusters, and the Large and Small Magellanic clouds.
www.planetariocanopus.com.ar
- Astronomical Planetarium
Buenos Aires - Argentina |
