Meade Instruments 20 MAX-ACF - Manual (Page 52)

52
Total instrument capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 lbs.
Aperture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20"
Optical design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Advanced Coma-Free
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-ACF
Optical Design
Advanced Coma-Free
Clear Aperture 20"
UHTC™ Coatings Standard Ultra-High Transmission Transmission Coatings (UHTC™
Resolving Power (Dawes Limit) .228 arc seconds
Focal Length, Focal Ratio 4064mm, f/8
Telescope 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
GPS, North sensors included 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 in 0.01x 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 3 - 35lb.
Counterweights (included)
Fixed Counterweights Requires 2 - 43lb.
Counterweights (included)
Accessories 8 x 50mm viewfinder, 2.0" diagonal mirror with 1.25" adapter,
UltraWide 24mm eyepiece.
Net Weight 694 pounds
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.