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Astro Physics GTO 1100 with encoders AE
[AP_1600GTOAE]

Prijs: 17.790,00 EUR

 

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Product Details

Astro Physics GTO 1100 with encoders AE and GTOCP4

 The 1100GTO mount has been designed and engineered to accomodate extremely precise Absolute Encoders. These are the same encoders as are used on the 1600GTO.

Absolute Encoders allow the mount to know its exact location regardless of accidental software errors and will allow its recovery. This is particularly important in remote setups. Furthermore, they virtually eliminate periodic error, reducing it below 0.2 arcseconds in our tests. If you order the 1100GTO-AE or 1100GTO-AEL, the R.A. and Dec. encoders will be installed and fully tested with the mount prior to shipment.

However, if you purchase the 1100GTO without encoders, you may purchase the Absolute Encoder Kit at some point in the future and install them yourself. This do-it-yourself upgrade option will not be available until the latter half 2016.

Check out the 10 minute (600 seconds) unguided exposure by clicking on the thumbnail to the left. Note that this image was taken with the 1600GTO, but as mentioned earlier, the same encoders are used on the 1100GTO, so the performance is representative

 

Electronic componentsRated for industrial and automotive applications
MotorsZero-cogging Swiss DC servo motors, enclosed in machined aluminum housing
Motor encoder2000 tic quadrature yielding an effective resolution of 0.050 arcseconds per tic
Motor reduction gear train57.6:1 gear reduction through a custom built set of large diameter, fine-toothed, precision, spur gears for vastly superior performance
Servo Motor Control BoxGTOCP4 Control Box, removable
Hand-held computer (optional)GTO Keypad to control all mount functions. Includes extensive databases and tour features in a simple, intuitive interface. Firmware updates via the internet
Power consumption~ 0.3 to 0.6 amps at 13.8 volts - tracking
~ 1.3 to 2.5 amps at 13.8 volts - both motors slewing at 1200x
Power requirementsNominal 12 volt DC supply at minimum of 5 amps continuous
Periodic error

7 arc seconds peak-to-peak (+/- 3.5 arc seconds) or less in one worm cycle (6.4 minutes); native, prior to any error correction

Maximum slew speed5 degrees / second
Product Specificaties

ConstructionAll CNC machined aluminum bar stock, stainless steel, brass; stainless steel fasteners
Finishing and AssemblyEvery part is hand-finished and inspected. All assembly is done by hand, by highly skilled mount assembly staff.
Worm wheel - R.A. & Dec.7.2" (183 mm), 225 tooth aluminum
Worm gear - R.A. & Dec.0.71" (18 mm) diameter special low-wear alloy
Axis shaft - R.A. & Dec. 3.15" (80 mm) diameter
Shaft axis bearings - R.A. & Dec.3.94" (100 mm) diameter
Latitude range 0 to 78 degrees
Azimuth adjustment Approximately 18 degrees (+/- 9 degrees from center)
Counterweight shaft 1.875" (47.6 mm) diameter x 14" (356 mm) long [12.875" (327 mm) usable length], incl. large machined safety stop knob. Optional 9" (229 mm) shaft extension available.
Weight of mount

Total: 54.0 lb. (24.5 kg)
R.A. axis/polar fork: 26.0 lb. (11.8 kg)
Dec. axis: 16.0 lb. (7.3 kg)
Dec. top plate 1.5 lb. (0.7 kg)
Counterweight shaft: 10.5 lb. (4.8 kg)

Capacity Approximately 110 lb. (50 kg) of scope and accessories, depending on length. Recommended for refractors up to 200 mm, 14-16" Cassegrains, Ritchey-Chretiens and CDKs.

These are only guidelines. Some telescopes are very long for their weight or heavy for their size and will require a larger mount. Remember also that imaging requirements are more rigid than visual observation. Maximum capacity may require the use of the 9" extension (M12675)
Instrument mounting interfaceRefer to list of suitable mounting plates below
Pier adapter base diameter7.730" (196.3 mm) Base. The base is an integral part of the mount and azimuth adjuster.
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