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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.

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.

Whoppshel Spectroscope

FIGU F/6 – 50µm

PF0008 Bonnette eShel T210x175 75IMG 7671 FIGU 140x154 1The FIGU (Fiber Injection and Guiding Unit) is mounted on the telescope focus (F/6) to inject the starlight into an optical fiber (50µm).

Description

The FIGU is mounted at the telescope’s focus to inject starlight into the eShel’s (or Whoppshel’s) optical fiber (50µm). A guiding camera (not included) allows you to observe the telescope field of view and locate the target star; then guide on this star. Alternatively, calibration light can be injected from the calibration module via a 200 µm optical fiber also connected to the FIGU A remote-controlled mirror allows you to switch from one source to another.

 

Champ nova Cma 2018 400x300web DSC00857 Guidage etoile eShel 1

Example of guiding image field of view with the 50 µm object fiber location

Specifications

  • Optimzed for F/6 telescope
  • Mounted on telescope by 2″ nosepiece (50.8mm) or by T-mount female thread (M42x0.75)
  • Backfocus ~45mm
  • Mirror with 50µm hole (for other F-ratios, please contact us)
  • Chrome-plated mirror (reflection ~55%)
  • FC connector for object fiber (50µm)
  • FC connector for calibration fiber (200µm)
  • Input for calibration flow (remotely activated mirror)
  • Fiber optics:
  • C-mount thread for the Guiding Camera ZWO ASI120mini Mono
  • mirror system for injecting calibration light into the object fiber (controlled by an electromagnet)
  • FIGU storage temperature -30° C to +40° C
  • FIGU working temperature -25° C to +30° C

 

 

 

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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APM Telescopes
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Telefon: +49 (0)6897 - 924929-0
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E-Mail: info@apm-telescopes.de
WWW: https://www.apm-professional-telescopes.com

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