Ash Dome Observatory

Ash Dome Observatory

Ash Dome Observatory

Ash Dome is one of the most trusted names in dome observatories. With over 50 years of being in business, Ash Dome can be found all over the world in home observatories and institutions. All Ash Domes are built to customer specifications before being shipped to the observatory site. Their experience and expertise ensures that Ash Dome will be the best dome observatory for your astronomical equipment.

Many of the outstanding features and available options designed into the Ash Dome are a direct result of suggestions received from professional astronomers, engineers, and amateur astronomers. Ash Dome has incorporated these ideas into the product they now provide to many of the world's most distinguished institutions. Yet Ash Dome is priced to be compatible with budgets of schools and amateurs.

Starting at $16,055

 

Ash Domes come in two (2) different Shutter Styles:

Type "A" Shutter Style

The Type "A" shutter is used in locations where the horizon is obstructed. With the lower door section in the down position, it serves as a partial occulting device blocking light pollution as well as serving as a windscreen. When the horizon is needed, the lower shutter is left attached to the upper shutter which raises it up from the horizon.

Type "B" Drop-Out Shutter Style

The Type "B" drop-out shutter is used when the horizon is viewed frequently. With the drop-out open, the observer has a clear 0° to 105° aperture. The lower shutter can be left in the closed position to serve as an occulting device.

 

Ash Domes come in two (2) different models:

Type "R" Model
Type "M" Model

Options

Dome Automation: Dome observatory control system which enables the user to control the dome's azimuth rotation, upper and lower shutter open and close functions.

Contactor Bars (Slip Rings): A set of electrical contactors are fitted into the observatory dome skirt. A set of brush contacts then provides continuous power to the shutter drive system and shutter electronics mounted on the rotating dome. The operator is able to operate the shutter drive system without the need to connect and disconnect electrical power when turning the dome in azimuth.

Lower Shutter Automation: The lower shutter can powered by and electric motor or hydraulic system. This allows opening and closing the lower shutter for dome automation purposes.

Wide Aperture Width: The standard aperture width may be increased. The chart in the Specifications section shows the aperture widths available.

Manual Shutter Override: A manual shutter override device can be furnished that allows the observer to manually crank the upper shutter closed in the event of a power failure. The manual override is standard on all Model "M" units.

 

Specifications

Specifications vary based on the dome and options chosen. Call for additional details.

Aperture Widths: Standard [ Wide Option ]

8' (2.43m): 30" (0.72m) [ na ]

10' 6" (3.20m): 34" (0.86m) [ 45" (1.14m) ]

12' 6" (3.81m): 34" (0.86m) [ 45" (1.14m) ]

14' 6" (4.42m): 42" (1.06m) [ 54" (1.37m) ]

16' 6" (5.03m): 42" (1.06m) [ 54" (1.37m) ]

18' 6" (5.64m): 62" (1.57m) [ 82" (2.08m) ]

20' 6" (6.24m): 71" (1.80m) [ 90" (2.28m) ]

22' 6" (6.85m): 71" (1.80m) [ 90" (2.28m) ]

24' 6" (7.46m): 71" (1.80m) [ 90" (2.28m) ]

26' 6" (8.07m): 71" (1.80m) [ 90" (2.28m) ]

28' 6" (8.68m): 71" (1.80m) [ 90" (2.28m) ]

30' 6" (9.29m): 90" (2.28m) [ 108" (2.74m) ]

Estimated Assembled Dome Weight Ranges

8' (2.43 meters): lb: 1100-1300 (kg: 499-590)

10' 6" (3.20m): lb: 1250 - 1550 (kg: 567 - 703)

12' 6" (3.81m): lb: 1500 - 1750 (kg: 680 - 794)

14' 6" (4.42m): lb: 1800 - 2450 (kg: 816 - 1111)

16' 6" (5.03m): lb: 2650 - 3200 (kg: 1202 - 1452)

18' 6" (5.64m): lb: 4500 - 5000 (kg: 2041 - 2268)

20' 6" (6.24m): lb: 4800 - 5500 (kg: 2177 - 2495)

22' 6" (6.85m): lb: 4900 - 5800 (kg: 2223 - 2631)

24' 6" (7.46m): lb: 6000 - 7000 (kg: 2722 - 3175)

26' 6" (8.07m): lb: 6500 - 7450 (kg: 2948 - 3379)

28' 6" (8.68m): lb: 8000 - 9700 (kg: 3629 - 4400)

30' 6" (9.29m): lb: 9500 - 10500 (kg: 4309 - 4763)