Equipment

TRAPPIST - North

The telescope

 

Model: Astelco RC Lightweight Telescope
Type: Ritchey-Chretien
Material: aluminium + carbon fiber
Diameter: 60 cm
System focal ratio: F/8
Unvignetted field of view: 50 mm de diameter
Focusing system: at M2 Optec TCFS
Weight: 75 kg (with instruments)

The mount

 

Modéle: Astelco NTM-500
Type: German equatorial
Motors: direct drive system
Drive accuracy: no periodic error
Speed: up to 50 deg/sec
Pointing accuracy (with pointing model): 10 arcsec
Differential positioning accuracy: < 1 arcsec RMS
Tracking accuracy without autoguider:  2 arcsec/4 min
Weight: 85 kg

The camera

 

Model: Andor IKONL BEX2 DD
CCD: E2V CCD42-40
Array size: 2048 x 2048 pixels
CCD type: Back Illuminated CCD, Deep Depletion with fringe
suppression, extended range dual AR coating
Pixel size: 13,5 microns
Pixel scale: 0.60 arcsec/pixels
Field of view: 20x20 arcmin
Full well: 100,000 electrons
Gain: 1.1 él/ADU
Peak QE: 90%
Read-out modes: 1MHz, 3 MHz, 5MHz
Read-out noise: 7e, 12e, 32e
Read-out time: 5s, 3s, 1.8s
Dark current: 0.15 e/s at -65C
Cooling: -100°C below ambiant
Temperature stability: 0.1°C
Weight: 4,6 kg

The filter wheel

 

Model: Apogee AI-FW50-10S
Filter type: 50mm square filters
Max. filter thickness: 7mm
Weight: 2.3 kg (1 wheel with filters)

Filters (wheel 1):

Johnson/Cousins BVRcIc Sloan z
NIR Luminance I+z' (>700nm)
Exoplanet Filter Exo (cut blue) from Astrodon

Filters (wheel 2):

Narrow band HB comet filters (on loan from Lowell Observatory)
OH, NH, CN, C3, BC, C2, GC, RC and Hα

The dome

 

Model: Gambato
Diametre: 4,2m
Automatization: TauTec

Weather safety

 

Weather station: Diffraction Limited Boltwood Cloud Sensor II 
Détecteur de pluie
AllSky : SBIG AllSky-340 Camera
Webcams: FOSCAM

Softwares

 

Operating system: Microsoft Windows 7
Telescope Control: AsTelOs Express
Observatory automation: DDC3-Dreams ACP Observatory Control
Dome Control: TauTec
Camera Control: Diffraction Limited MaximDL
Plate solving: DC3-Dreams PinPoint
Focus control: FocusMax
Standard driver: ASCOM
Miror planet astrometry: Astrometrica