The equipment is spread over 3 Observatories:
Two Observatories where a Newton 250-900 F/d 3.6 is installed, one on EQ8 at Stéphane’s and the other at Francis’.
An Observatory where a FSQ 106 is installed on an AZEQ6 at Stephane.
The hardware installed in the two observatories is completely identical. Only the autoguiding camera differs. Francis had a 314L atik which he converted into a guidance camera. Stéphane had a Lodestar camera.
This standardisation of the two set-ups allows us to be very efficient. The experience of one benefits the other and vice versa. The two cameras have been positioned at the same angle to within a degree.
Supplier: SKYVISION France
MODEL: MT 250
DIMENSIONS:H= 864 mm-32” W=373mm=15”
WEIGHT without lens and POW: 12,85kg
Average print run: ~~20mm
Eyepiece Holder: FLI 3”
Corrector: Riccardi-TS 3” Back Focus 65 mm
Pixel size:7.4×7.4 µm
Imaging size:15.2×15.3 mm
Download time: ~5.7s
Full sensor capacity:~40000 e
Dark current: 40e/s/ pixel at 40°C
Gain:0.4 e/ ADU (binning 1×1)
Reading noise: 9th RMS (standard reading)
The Moravian filter wheels are equipped with RJ 45 connectors, which plug into the camera allowing power supply and control via the camera, thus avoiding double cabling of power supply and USB plug.
The set of L,R,V,B filters is a Chroma filter with a diameter of 50mm on Francis’ set-up and 36mm on Stéphane’s set-up.
The S2,Ha,O3 narrowband filters are 3nm Chroma filters with the same diameter.
The Guidance Camera is a Superstar Starlight X Press.
31.75mm diameter with a 6.40mmX4.75mm sensor.
Sony ICX205AL Super HAD CDD sensor.
Autoguiding port with RJ12 plug and direct connection to the USB port of the computer.
The optical dividers were made by SKYMECA.
It is a Slim version ( 15 mm thickness), which was chosen to have a minimum back-focus.
Its linear guidance of the camera movement is made by two lateral columns.
The realization is hyper-soigné.
The Guide Camera is an Atik 314 L.
It is equipped with the highly sensitive Sony ICX 285 AL sensor with 6.45×6.45 µm pixels.
The size of the sensor is 1391×1039 pixels.
It is equipped with an RJ 12 autoguiding port.
This accessory for the Starlight X Press filter wheel is perfect for precise, flex-free guidance.
The slim assembly screws directly onto the face of the Wheel and adds only 13 mm to the rear focal length of the wheel.
The 10X8mm prism fully illuminates the Lodestar guide CCD and the axis can be adjusted to optimize the image quality of the guide.
An alternative filter wheel front plate for direct mounting of the SX H18 and M26 cameras is also available (not suitable for other SX cameras as the OAG cannot focus for these without the camera adapter in place).
The optional variable guide head extension of 20mm is useful when using a guide or non-Starlight Xpress imaging cameras to ensure that both cameras can be focused at the same time.
The LRVB Filter Sets are Chroma brand unmounted 36 mm.
The SHO Filter Sets of the same brand are in 5 nm.
The management of the engine is done by the Skycenter from Pierro Astro.