Meade Instruments LX200 Classic User Manual
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Telescope
8" LX200 f/10
10" LX200 f/10
12" LX200 f/10
Optical Design
Schmidt-Cassegrain
Schmidt-Cassegrain
Schmidt-Cassegrain
Catadioptric
Catadioptric
Catadioptric
Clear Aperture
203mm (8")
254mm (10")
305mm (12")
Primary Mirror Diameter
209.6mm (8.25)
263.5mm (10.375)
314.3mm (12.375")
Focal Length
2000mm (80")
2500mm (100")
3048mm (120")
Focal Ratio
f/10
f/10
f/10
Resolution
.56 arc sec
.45 arc sec
.375 arc sec
Super Multi-Coatings
Standard
Standard
Standard
Limiting Visual Magnitude (approx)
14.0
14.5
15.0
Limiting Photographic Magnitude (approx)
16.5
17.0
17.5
Image Scale (°/inch)
0.72°/inch
0.57°/inch
0.48°/inch
Maximum Practical Visual Power
500X
625X
750X
Near Focus
25'
50'
75'
Optical Tube Size
9.1" Dia. x 16" Long
11.75" Dia. x 22" Long
13.6" Dia. x 25" Long
Secondary Mirror Obstruction
3.0" (14.1%)
3.7" (13.7%)
4.0" (11.1%)
Telescope Mounting
Heavy-Duty Fork-Type
Heavy-Duty Fork-Type
Heavy-Duty Fork-Type
Double Tine
Double Tine
Double Tine
Setting Circle Diameters
Dec.: 6"; R.A.: 8.75"
Dec.: 6"; R.A.: 8.75"
Dec.: 6"; R.A.: 8.75"
RA Motor Drive System
9-speed, microprocessor
9-speed, microprocessor
9-Speed, microprocessor
controlled 12v. DC servo
controlled 12v. DC servo
controlled 12v. DC servo
motor; 5.75" worm gear
motor; 5.75" worm gear
motor; 5.75" worm gear
with Smart Drive
with Smart Drive
with Smart Drive
Hemispheres of Operation
North and South -
North and South -
North and South -
switchable
switchable
switchable
Declination Control System
9-speed, DC servo
9-speed, DC servo
9-speed, DC servo
controlled 5.75" worm gear
controlled 5.75" worm gear
controlled 5.75" worm gear
with Dec drift software
with Dec drift software
with Dec drift software
Motor Drive Gear Diameter
5-3/4" Worm Gear
5-3/4" Worm Gear
5-3/4" Worm Gear
Manual Slow-Motion Controls
Dec. and R.A.
Dec. and R.A.
Dec. and R.A.
Hand Controller
Motorola 68HC05
Motorola 68HC05
Motorola 68HC05
microcontroller; 2 line x 16
microcontroller; 2 line x 16
microcontroller; 2 line x 16
alphanumeric character
alphanumeric character
alphanumeric character
display; 19 button keypad,
display; 19 button keypad,
display; 19 button keypad,
red LED backlit
red LED backlit
red LED backlit
Main Controller
16 MHz 68000
16 MHz 68000
16 MHz 68000
microprocessor; 1 Meg
microprocessor; 1 Meg
microprocessor; 1 Meg
program memory
program memory
program memory
16K RAM; 512 byte
16K RAM; 512 byte
16K RAM; 512 byte
non-volatile memory
non-volatile memory
non-volatile memory
(EEROM)
(EEROM)
(EEROM)
Telescope Size, Swung Down
9.25" x 16" x 25"
12" x 19" x 31"
15" x 20" x 37"
35mm Angular Film Coverage
0.97° x 0.68°
0.78° x 0.54°
0.65° x 0.45°
35mm Linear Film Coverage @:
50"
6.2" x 8.7"
5.0" x 7.0"
4.1" x 5.8"
500"
6.0' x 8.5'
4.8' x 6.8'
4.0' x 5.7'
3000"
36.0' x 51.0'
28.8' x 40.8'
24.0' x 34.0'
Tele-Extender Used Without Eyepiece @:
50'
6.8" x 8.5"
4.6" x 6.8"
3.5" x 5.7"
500'
4.9' x 7.2'
4.0' x 5.8'
3.3' x 4.8'
3000'
31' x 45'
25' x 36'
21' x 30'
Net Telescope Weights (approx)
Telescope
37#
61#
70#
Optional Equatorial Wedge
7#
N/A
N/A
Optional Super Wedge
N/A
26#
26#
Field Tripod
20#
20#
50#
Accessories
8#
8#
8#
Shipping Weights (approx)
Telescope
64# (w/ case)
69#
95# (w/ case)
Equatorial Wedge (optional)
9#
N/A
N/A
Super Wedge (optional)
N/A
38#
38#
Field Tripod
26#
26#
57#
Case (for 10" models)
30#
30#
N/A
Accessories
5#
5#
10#