Instruments Telescopes Instruction Manual RCX400

51
Total instrument capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 lbs.
Aperture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16" & 20"
Optical design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Advanced Ritchey-Chrétien
Optical coatings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . UHTC™
Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Robotic Equatorial
Gear pitch diameter
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.625"
Periodic error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 arc sec.
Latitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0-90°
No. of drive gear teeth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 652 (RA & DEC)
MAX Mount Only 16" RCX 20" RCX
Optical Design Advanced Ritchey-Chrétien Advanced Ritchey-Chrétien
Clear Aperture 16" 20"
UHTC
™ Coatings Standard Ultra-High Transmission Transmission Coatings (UHTC™
Resolving P
ower (Dawes Limit) .285 arc seconds .228 arc seconds
Focal Length, Focal Ratio 3251mm, f/8 4064mm, f/8
T
elescope Mounting MAX Robotic Equatorial Mount
Periodic Error Correction
Both axes Ten (10) arc seconds (raw); Two (2) arc seconds with PECTOOL
Control Panel 2 multi-function, multi-port panels
Focus 4-speed front focusing
mechanism included included
GPS, North sensors included 16-channel GPS receiver 16-channel GPS receiver (on Mount)
Pointing Precision High Precision Mode 1-arc min.
Autostar® II Hand Controller Included (147,541 object database)
Alignment Equatorial
North electronic sensors Included
Temperature Control Thermal stabilization fan
Power 12VDC, 5amp power supply required
Slew Speeds: RA and Dec: 0.01x to1.0x sidereal, variable in0.01x increments; 2x, 8x, 16x, 64x, 128x
sidereal; 1°/sec. to 2°/sec., variable in 0.1° increments All models
Tracking Rates Sidereal, lunar, solar or custom-selected from 2000 incremental rates All models
Primary, Secondary Mirrors Pyrex® glass, fine-annealed
Correcting Plate/Lens Borofloat
Adjustable Counterweights Requires 2 - 35lb. Requires 3 - 35lb. Requires 2 - 35lb.
Counterweights (included) Counterweights (included) Counterweights (included)
Fixed Counterweights Requires 2 - 43lb. Requires 2 - 43lb. Requires 2 - 43lb.
Counterweights (included) Counterweights (included) Counterweights (included)
Accessories 8 x 50mm viewfinder, 2.0" diagonal mirror with 1.25" adapter,
Ultr
aWide 24mm e
yepiece. (16" and 20" models)
Total Net Weight 329 pounds 140 pounds (OTA only) 190 pounds (OTA only)
(no counterweights)
TELESCOPE SPECIFICATIONS
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the
Sun. Do not look through the telescope as it is moving.