Digitarium® Alpha 2+ Portable Digital Planetarium System
This model has been discontinued. Please see our current models.
Specifications
| Maximum Dome Diameter |
Approximately 56 feet/17 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 |
6500 Lumens with both lamps and a 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.) |
| Contrast Ratio |
Approximately 1200:1 |
| Lamp life |
2000 hours The projector has two lamps which can be used one at a time, or both together for the brightest projection. |
| Image Quality |
Improved sharpness and less violet color separation than in the Digitarium Alpha 2. |
| Internal Storage |
1 TB standard. |
| Power |
North America: 120VAC, 50/60Hz, 1020 Watts Elsewhere: 220-240VAC, 50/60Hz, 1000 Watts |
| Regulatory |
FCC Class A, CE class A (RoHS compliant) |
| Projector features |
Dual lamp, automatic lamp failover or relay options, direct power off (fans properly cool down lamps even if the power is cut off), dust filters, sealed optical block, shutter, LAN control and reporting |
| Dimensions |
System: 19.5 x 16.5 x 25 inches for storage (50 x 42 x 64 cm), 19.5 x 16.5 x 35 inches in use (50 x 42 x 89 cm) Transit case: 39 x 25 x 22 inches (99 x 64 x 56 cm) |
| Weight |
System: 75 pounds (34 kg) Transit case: 47.6 pounds (21.6 kg) Total: 123 pounds (56 kg)
|
Product photos may differ slightly from actual models.