RCOS (Open) Carbon Truss 16 inch Ritchey-Chrétien...

One of six Custom RCOS 16RC "Open" Truss Telescopes at Cerro Tololo, Chile owned and operated by the University of North Carolina (UNC) at Chapel Hill.

These Custom 16" Ritchey-Chrétien Telescopes participate in the PROMPT ( Panchromatic Robotic Optical Monitoring and Polarimetry Telescopes) project. Their objective is rapid and simultaneous multiwavelength observations of GRB afterglows, some when they are only tens of seconds old. In addition to measuring redshifts by dropout, and early-time SFDs and extinction curves of sufficiently bright afterglows in unprecedented detail, PROMPT will facilitate quick response observations at 8.1-m Gemini South and 4.1-m SOAR. PROMPT will also serve as a platform for undergraduate and high school education throughout the state of North Carolina.

Six 12' Clamshell Observatories house six RCOS 16" Carbon Truss (Open) Telescopes near the summit of CTIO at an altitude of 2200 meters. There are many other World Class instruments that share the mountain top including; The 4-m Victor M. Blanco Telescope, The 1.5-Meter Telescope, The 1.3-m (ex-2MASS) Telescope, The SMARTS 1.0m Telescope, and The 0.9-Meter Telescope.

Collimation of an RC or any Cassegrain is easy. How easy? Play the "Collimation Video" by Ken Crawford.

16 inch (0.41 meter) RC Specifications
16 inch F/8.4 Ritchey-Chrétien Zero Expansion Astro-Sitall Optics by Star Instruments certified to at least 1/25 RMS. Fringe analysis and interferometric data supplied with each optical set. Enhanced Aluminum (SiO2/TiO2) overcoat - 96.9% reflectivity. Low Expansion, light weight Carbon Fiber Truss for superior performance and stability. 6061 Aluminum components - All CNC Machined. Precision Secondary Mirror Focuser. 2-Stage Primary mirror baffle with internal knife-edge light stops. Conical Secondary light baffle. 6061 Aluminum Mounting Rings - CNC Machined. Active Cooling with side mounted fans. RCOS "Focus and Forget" Technology. Shipped fully assembled, collimated, and ready to use. RCOS Custom CNC Machined "light weight" Losmandy compatible dovetail plates - top and bottom with matching Paramount VersaPlate hole pattern, allows dovetail mounting plate to be bolted to VersaPlate once scope is balanced. Losmandy RDF-90 Finder Scope 3-point mounting bracket. Fixed Instruments (rear cell) Adapter Set - FIA. CNC machined dust cover over primary mirror.	System	16" f/8.4
	Focal Length	3414mm
	Base Price	$38,475
	Delivery Status	45-60 Days Upon Receipt of Optics
	Back Focus	14"
	Carbon Tube Length/Diameter	40"/19"
	Primary Focal Length	48"
	Primary Hole	4.0"
	Primary to Secondary Spacing	31.7"
	Radius of Field Curvature	17.67"
	Secondary Amplification	2.8X
	Secondary Size	6.00"
	Total Weight*	93 pounds

*100% ready for imaging as equipped above including rings and dovetail plates.

Recommended Options
RCOS Precision Instrument Rotator (PIR). Controlled by the Telescope Command Center.	$2,450
RCOS Telescope Command Center (TCC) Controller - Thermal monitor of primary, secondary and ambient air temperature, includes and controls fans, secondary focus position, secondary dew heater operation, and operation of optional Instrument Rotator . Includes Servo DC motor to electronically operate the secondary focuser.	$1,850
Mini Borg 45 ED f/6.6 Refractor for Finder Scope (Mini45).	Call
Mini Borg 50 Ach f/5 Refractor for Finder Scope (Mini50).	Call
Borg 77mm ED Refractor for Piggy back Guide Scope, Finder Scope, or Wide Field Imager (77ED).	Call
Borg 100mm ED Refractor F4/F6.4 PH for Piggy back Guide Scope, or Wide Field Imager (100ED).	Call
FSQ-106 by Takahashi (FSQ-106).	Call
16 inch f/9 Ion Milled optics. IN STOCK!	CALL
RCOS Custom Shipping Crate	$650

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