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APM Professional Telescopes

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.

ASA Telescopes

ASA600 with DDM200

ASA600 OTA is the perfect fit for the ASA direct drive mounts with absolute encoders. As all ASA telescopes the ASA600 is equipped with quartz glass optics from ASA.

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Astroshell Dome 4.25 m

Astroshell Dome 4.25m

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.

Sirius Domes

Sirius Observatories Australia has learned that success and innovation comes from overcoming difficulties as a team and with Joe at the helm, we believe that nothing can stand in our way of eventually becoming the number one manufacturer of fiberglass observatories in the world.

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SBIG Portable Cloud Sensor

Boultwood Portable Cloud Sensor

portable cloud sensor

Img 5834A battery powered cloud sensor, perfect for those expeditions to dark-sky sites and star parties!

  • Detects cloud and daylight
  • Audible alert
  • Battery powered
  • Standalone operation
  • Not intended for permanent installation

A beeping sound rouses you at 1 AM, and looking out of the tent you see it’s finally cleared off. You pop the tarp off your telescope, line up a shot, get the autoguider running, and start the exposure series going. You’re still pretty tired though, so you head back into the tent, comfortable in the knowledge that the Boltwood Portable Cloud Sensor will wake you up if the conditions deteriorate again.

The Portable Cloud Sensor is designed to alert you when the cloud conditions change. It consists of a sensor head and a control box, connected by a cable. The sensor head is placed outside, pointing up at an unobstructed sky. The control box can be conveniently located inside a tent or building, as needed. The control box includes batteries that will power the unit for over 100 hours, plus an alarm beeper, a headphone jack for “silent” alarms, and simple user controls.

The Portable Cloud Sensor measures the amount of cloud cover by comparing the temperature of the sky to the ambient ground level temperature. The sky temperature is determined by measuring the amount of radiation in the 8 to 14 micron infrared band. A large difference indicates clear skies, whereas a small difference indicates dense, low-level clouds. This allows the sensor to continuously monitor the clarity of the skies, and to alert the user when conditions change.

pcs faceplateA built-in daylight sensor is also included. When the sensor is set to detect “Clear & Dark” conditions, it will alarm for clear skies unless the sun comes up first, in which case it lets you sleep in. When the sensor is set to detect “Cloudy or Light” conditions, it will alert you when clouds roll in or dawn approaches, so you can protect your telescope against the elements (including the sun!).

Although the Portable Cloud Sensor uses the same cloud detection technology as it’s big cousin, the Boltwood Cloud Sensor II, it is not designed for permanent installations. It does not detect rain/moisture, wind, or humidity. The sensor is gently heated to prevent dew or frost, but it does not have the power to clear itself after a rain shower; it must be wiped off. It cannot connect to a computer or trigger an observatory dome closure. For permanent installations please use the Boltwood Cloud Sensor II.

The control box, shown at left, can be conveniently located next to your pillow while you sleep. The simple user controls let you set the cloudy/clear threshold, set it to alarm for clear or cloudy conditions, and turn it on/off. On the side are two jacks; one for the sensor cable and one for optional headphones (not included).

Includes Sensor Head, Control Box, and Cable.

Documentation

User Manual

User’s manual for installing and operating the Portable Cloud Sensor

Download

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.

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