Appendix g: lx200 specifications – Meade Instruments LX200 Classic User Manual
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Telescope
7" LX200 f/15
8" LX200 f/6.3
10" LX200 f/6.3
Optical Design
Maksutov-Cassegrain
Schmidt-Cassegrain
Schmidt-Cassegrain
Catadioptric
Catadioptric
Catadioptric
Clear Aperture
178mm (7")
203mm (8")
254mm (10")
Primary Mirror Diameter
194mm (7.625")
209.6mm (8.25)
263.5mm (10.375)
Focal Length
2670mm (105")
1280mm (50.4")
1600mm (63")
Focal Ratio
f/15
f/6.3
f/6.3
Resolution
.64 arc sec.
.56 arc sec
.45 arc sec
Super Multi-Coatings
standard
Standard
Standard
Limiting Visual Magnitude (approx)
13.5
14.0
14.5
Limiting Photographic Magnitude (approx)
16.0
16.5
17.0
Image Scale (°/inch)
.55°/inch
1.14°/inch
0.91°/inch
Maximum Practical Visual Power
450X
500X
625X
Near Focus
50'
25'
50'
Optical Tube Size
9.1" Dia. x 19" Long
9.1" Dia. x 16" Long
11.75" Dia. x 22" Long
Secondary Mirror Obstruction
2.5" (12.8%)
3.45" (18.6%)
4.0" (16.0%)
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 32.5"
9.25" x 16" x 25"
12" x 19" x 31"
35mm Angular Film Coverage
0.74° x 0.52°
1.55° x 1.08°
1.24° x 0.86°
35mm Linear Film Coverage @:
50"
4.7" x 6.6"
9.7" x 13.6"
7.75" x 10.9"
500"
4.6' x 6.5'
9.4' x 13.3'
7.5' x 10.7'
3000"
27.4' x 38.9'
56.3' x 79.7'
45.0' x 63.8'
Tele-Extender Used Without Eyepiece @:
50'
4.4" x 6.5"
9.1" x 13.3"
7.3" x 10.6"
500'
4.2' x 5.5'
7.7' x 14.1'
6.1' x 9.0'
3000'
24' x 34'
48' x 70'
39' x 56'
Net Telescope Weights (approx)
Telescope
45#
37#
61#
Optional Equatorial Wedge
7#
7#
N/A
Optional Super Wedge
N/A
N/A
26#
Field Tripod
20#
20#
20#
Accessories
8#
8#
8#
Shipping Weights (approx)
Telescope
65#
64# (w/ case)
69#
Equatorial Wedge (optional)
9#
9#
N/A
Super Wedge (optional)
N/A
N/A
38#
Field Tripod
26#
26#
26#
Case (for 10" models)
N/A
N/A
Accessories
5#
5#
5#
APPENDIX G:
LX200 SPECIFICATIONS