Digitarium® Alpha 2 Portable Digital Planetarium System
This model has been discontinued. Please see our current models.
Specifications
Maximum Dome Diameter |
Approximately 33 feet/10 meters. Brightness
is the main
issue, since the larger the dome,
the larger the surface area the light from the projector must cover. |
Resolution |
768 pixels across a diameter |
Field of view |
180 degrees, full sky. |
Pixels per degree of sky |
4.3 average |
Angle of Projection |
175 degrees |
Base Projector Brightness |
3500 Lumens with non-fisheye lens (Provided for comparison purposes with other systems. Actual brightness with a fisheye lens is significantly less due to not projecting the whole video rectangle and differing lens properties. Please contact us if you may be interested in a brighter system.) |
Contrast Ratio |
Approximately 900:1 (Actual measured value with fisheye lens and projector in normal contrast mode.) |
Lamp life |
Up to 1500 hours on high/2000 hours on low (4000 hours with dimmer long life lamp) |
Image Quality |
Some violet color separation is present, however we do not believe that this will distract from your teaching. This is a tradeoff in the interest of an affordable system and has been
improved from the previous model.
|
Internal Storage |
1 TB standard. |
Power |
North America: 120VAC, 50/60Hz, 640 Watts Elsewhere: Contact your local distributor. |
Regulatory |
FCC Class A, CE class A (RoHS compliant) |
Projector features |
Direct power off (fan properly cools down lamp even if the power is cut off), dust filter, sealed optical block, shutter, LAN control and reporting |
Dimensions |
System: 16 x 16 x 24 inches for storage (40 x 40 x 60 cm), 16 x 16 x 34 inches for use (40 x 40 x 87 cm) Transit case: 19 x 21 x 31 inches (47.5 x 52.5 x 77.5 cm) |
Weight |
System: 58 pounds (26.4 Kg) Transit case: 34 pounds (15.5 Kg) Total: 92 pounds (41.8 Kg) The transit case has built in wheels and extendable handle for easy transport on flat surfaces. |
Product photos may differ slightly from actual models.