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iTelescope - T27 - Deep Space


Observatory: Siding Spring - Australia - MPC Q62

(TEL T27 0.70-m f/6.6 CDK astrograph + CCD)

Hosting by iTelescope.Net (Online May 2014)

Minimum Target Elevation: Approx 25 Degrees

UTC +10:00 New South Wales, Australia Daylight savings time is observed.

South 31° 16' 24" East 149° 03' 52" Elevation: 1165m

Operational Notes

Very Deep Field. Hybrid Missions. Typically used for Photometry and Imaging. FITS and TIF file formats. Sub-exposure times should be kept to 60, 120, 180, 300, 600 seconds for optimal results. Binx1 - Binx2.

The Planewave CDK700 mount is so accurate whilst tracking that iTelescope Admin have disabled active guidance, with a corresponding decrease in session setup time when imaging.

T27 is the largest iTelescope platform on the network at 27.5" (.7 meters). It has a rapid slewing Alt-Azm mount with built in de-rotator and is ideal for very deep imaging, comet or asteroid studies and deep science missions in general.

This iTelescope platform is dedicated to three women whose contributions to the field of astronomy over the last century were very influential and still remain so to this very day - Dame Jocelyn Bell Burnell, Annie Jump Cannon and Henrietta Swan Leavitt (BCL). Hence, this instrument has been named “The BCL iTelescope”.

We hope that you will enjoy using this research grade telescope to make your own discoveries and to share your enthusiasm and results with others.

Instrument Package

Port A

  • CCD: FLI PLO09000
  • QE: 68% Peak
  • Full Well: > 100X Saturation Exposure (ABG)
  • Dark Current: <0.1 e-/pixel/sec. @ -35º C
  • Pixel Size: 12um Square
  • Resolution: 0.53 arc-secs/pixel
  • Sensor: Frontlit
  • Cooling: Set to -35ºC default
  • Array: 3056 by 3056 (9 Megapixels)
  • FOV: 27.1 x 27.1 arc-mins


  • Astrodon E series - Lum, Green, Blue.
  • Astrodon - Ha 6nm, SII 6nm, OIII 6nm.
  • Astrodon Johnson/Cousins UV, B, V, Rs, Ic.
  • Position Angle: TBAº

Telescope Optics

  • OTA: Planewave 27" (0.7m) CDK700WF
  • Optical Design: Corrected Dall-Kirkham Astrograph
  • Aperture: 700mm
  • Focal Length: 4531mm
  • F/Ratio: f/6.6
  • Guiding: Active Guiding Disabled
  • Mount: Planewave Alt-Az