iTelescope - T9 - Wide Field - Australia


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Location Information


Observatory: iTelescope.Net at Siding Spring Observatory Australia - MPC Q62

Telescope:  T9 0.127m f/5.6 Refractor + CCD

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

Minimum Target Elevation: Approx 20°  &  45° Northern to Eastern horizons. 


South 31° 16' 24" East 149° 03' 52"  

Elevation: 1122m  MPC Code Q62


Operational Notes


T9 is a wide-field imaging system dedicated to the astro-imager. The flat-field, fast focal ratio, and short focal length of the Tele Vue NP127fli is a perfect match for the FLI ProLine PL16803 camera. Together they produce beautifully sharp stars across its over 4° field of view .

T9's mechanical focuser has been replaced with a solid adapter. This provides a rigid, flexure-free connection to the FLI imaging train and permanently
maintains the system’s optical alignment. This telescope also includes Tele Vue’s Large Field Corrector lens properly positioned at the rear of the adapter to deliver optimal star images across the field of its large-format CCD camera.


Wide Field Telescope. Typically used for Wide Field RGB / Narrowband Imaging. FITS and TIF file formats. Dark Frame calibration data is available for  60, 120, 180, 300, 600  second exposures. Binx1 - Binx2.  Raw data can be found at data.itelescope.net.

T9 features a high quality Large Format FLI CCD. Its advanced technology mount allows long duration exposures without active guidance.


Instrument Package

CCD:  FLI Proline 16803 - Grade 1 

QE: 60% Peak - Monochrome

Full Well:  100,000e-  Anti Blooming Gate (ABG)

Dark Current:   0.01 e-/pixel/sec. @ -30º C

Pixel Size:  9um Square

Resolution:  2.75 arc-secs/pixel

Sensor:  Frontlit 

Cooling:  -20ºC

Array:  4096 by 4096 (16 Mega pixels) 

FOV:  188 x 188arc-mins

Filters: Astrodon - Lum, Red, Green, Blue, Ha, SII, OIII

Position Angle: Approx 0º


Telescope Optics

OTA: Tele Vue NP127fli  Refractor 

Optical Design: 4-Element Nagler-Petzval APO Astrograph 

Aperture: 127mm (0.127 metre) 

Focal Length: 680mm (0.68 metre) 

F/Ratio: f/5.3 

Guiding: Not Active

Mount: 10Micron 2000 HPS



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