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APM Professional Telescopes

1m F/8 Ritchey Chrétien with dual Nasmyth Foci, Cape Town (South Africa)

Another large telescope for the South African Astronomical Observatory (SAAO). An 1m F/8 Alt-Az mounted Ritchey Chrétien for robotic use. It has dual Nasmyth Foci. The main telescopes used for research are located at the SAAO observing station (32°22.795’S 20°48,657’E) near Sutherland in the Northern Cape, a 4-hour drive from Cape Town.

Astronomy is our job

Observatory Telescopes

Big prime focus telescopes for private or public observatories including installation and full service.

Robotic / Remote

Robotic instruments for automatic imaging or telescopes for remote observation.

UVEX Spectrograph

Uvex Spectrograph

The UVEX is a “crossed” Czerny-Turner spectroscope optimized for wavelengths from near UV (<350nm) to near IR (1µm).

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Diffraction Limited CCD Kameras

Aluma CCD 695 a

Our most popular camera, the SBIG Aluma AC4040 is a large format Scientific CMOS camera, featuring a 16.8 megapixel sensor with 9 micron pixels. The camera is compatible with the StarChaser SC-4 Guider and optional AO-X Adaptive Optics accessories.

Diffraction Limited Overview

Astroshell Dome 4.25 m

CLAMSHELL DOMES provide an unparalleled 360/180 degree field of view for an absolutely breathtaking nighttime experience. When this observatory dome opens, you are truly among the stars!

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Product enquiries

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Please make your enquiries about the products you require here. We will contact you as soon as possible with a customised quote.

ASA Telescopes

ASA AZ800 Ritchey-Chrétien telescope f6.85

A high-end complete telescope system.

AZ800 is a 0.8m (800mm) fully automated observatory telescope system. Ritchey-Chrétien Alt-Az telescope f6.85, f2.5 with Nasmyth Focus with absolute encoders on all axes.

ISS with AZ800 Telescope (Photo ASA)

Main Facts

Optical design
Ritchey-Chrétien RC

Focus position
Nasmyth 2 as standard, 4 as option

Focal ratio system
f10

Image field
120mm (1.25 degrees)

Surface quality
>94 strehl

Coating
Al+SiO2 >96 %

Weight tube
800 kg (1763.7 lbs)

Software
ASA API (application programming interface) available autumn 2023 ASA Software(Autoslew, Sequence-windows based, ACC) with ASCOM-Alpaca

Pointing Accuracy (20° to 85°)
<8” RMS with pointing model

System Natural Frequency
10 Hz or greater

Linear central obstruction
41%

Focal length
5480mm

Clear Aperture / Focal Ratio Primary Mirror
800mm (31,5 inch) / f2.5

Mirror material
Fused silica

Microroughness
1nm RMS / <0.7nm Ra

Back Focus from flange
252.7mm

Azimuth / altitude range of motion
680 degree / 5-90 degree

Max. slew speeds
Up to 50 degrees per second

Tracking Accuracy (20° to 85°)
<0,25” RMS within 5 minutes tracking time over 5 min 0,05” RMS/min

RC & CDK Comparison

==> See Full RC & CDK Comparison

Technical Details

Electronic

Our closed loop direct drive systems, sensor technology and observatory safety modules play a major role in achieving optimum results. All moving accessory components are equipped with high-resolution encoders and closed-loop feedback systems. We provide event timer modules, and customer updatable firmware.

Optic

Only the best for your telescope!

We believe that the most important part in producing optics is the testing. So ASA decided that we invest in the best test equipment available, remove any measuring error as good as possible and use real values in our specifications.

Technologie

Our mounts are manufactured with the lastest CNC technology.

Software

Platform independent control software.

ASA/APM Services
Optional Tests for FAT/SAT	Installation package remote/on-site	Setup and Alignement remote/on-site
Engineering Image Train Package	Alternative mirror coating	Projektconsulting/-management by ASA/APM

ASA Accessories
Remote package pro	Weather station sensor package	All Sky Cam 0201171A

APM Professional Telescopes

1m F/8 Ritchey Chrétien with dual Nasmyth Foci, Cape Town (South Africa)

Another large telescope for the South African Astronomical Observatory (SAAO). An 1m F/8 Alt-Az mounted Ritchey Chrétien for robotic use. It has dual Nasmyth Foci. The main telescopes used for research are located at the SAAO observing station (32°22.795’S 20°48,657’E) near Sutherland in the Northern Cape, a 4-hour drive from Cape Town.