Meade LXD Telescopes
Recommended
Accessories
- Telescope
Mounting: LXD75, German-type
- Setting
Circle Diameters, RA and Dec.: 2.25"
- Polar
Illuminated Viewfinder: included
- RA
Control System: 9-speed, microprocessor-controlled,
12v DC, 72mm (2.83") worm gear
- Declination
Control System: 9-speed, microprocessor-controlled,
12v DC, 72mm (2.83") worm gear
- Hemispheres
of Operation: North and South
- GO
TO Pointing Precision (approx.): 15 arc mins.
- Slow-Motion
Controls: electric, both axes
- Bearings:
2 – Ball Bearings RA: outer – 1x58mm, 1x47mm; inner
– 1x45mm, 1x35mm DEC: outer – 1x72mm, 1x47mm; inner
– 1x55mm, 1x30mm
- Autostar
Hand Controller: PIC 16C57 microcontroller; 2 line
x 16 alphanumeric character display; 20-button keypad, red LED
backlit
|
- Main
Telescope Controller: Motorola 68HC11 microprocessor;
1-Megabyte flash memory (field reprogrammable); 32K RAM
- Batteries
(user-supplied): 8 x D-cells. LXD75-Series models may
alternatively be powered from an automobile cigarette lighter
plug, using the #607 Power Cord, or from a 115v AC home outlet,
using the #547 AC Adapter; both the #607 and the #547 include
25 ft. cords.
- Battery
Life (approx.): 40 hours
- Onboard
Celestial Object Database: 30,223 objects
- Slew
Speeds both axes: 1x, 2x, 8x, 16x, 64x, 128x sidereal;
1.5°/sec., 3°/sec., 4.5°/sec.
- Tracking
Rates: sidereal, lunar, or custom-selected from 2000
incremental rates
|
AUTOSTAR
SUITE/LPI
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Specifications
and Features:
LXD Astro Telescopes
| Telescope
Specs |
SN-6 |
SN-8 |
SN-10 |
AR-5 |
AR-6 |
SC-8 |
N-6 |
| Optical
Design |
Schmidt-Newtonian |
Schmidt-Newtonian |
Schmidt-Newtonian |
Achromatic
Refractor |
Achromatic
Refractor |
Schmidt-Cassegrain |
Newtonian
Reflector |
| Clear
Aperture |
152mm
(6") |
203mm
(8") |
254mm
(10") |
127mm
(5") |
152mm
(6") |
203mm
(8"); |
162mm
(6") |
| Focal
Length, Focal Ratio |
762mm;
f/5 |
812mm;
f/4 |
1016mm;
f/4 |
1143mm;
f/9 |
1219mm;
f/8 |
2000mm
f/10 |
762mm;
f/5 |
Resolving
Power
(arc secs.) |
0.74 |
0.56 |
0.45 |
0.9 |
0.74 |
0.56 |
0.74 |
| Optical
Coatings |
MgF2;
standard aluminum |
MgF2;
standard aluminum |
MgF2;
standard aluminum |
multi-coated |
multi-coated |
MgF2;
standard aluminum |
MgF2;
standard aluminum |
| Ultra-High
Transmission Coatings |
available
optionally |
available
optionally |
available
optionally |
— |
— |
— |
— |
| Limiting
Visual Magnitude (approx.) |
13.5 |
14 |
14.5 |
12.8 |
13.5 |
14 |
13.5 |
| Limiting
Photographic Magnitude (approx.) |
16 |
16.5 |
17 |
15.3 |
16 |
16.5 |
16 |
| Image
Scale (degs./inch) |
1.89°/inch |
1.78°/inch |
1.42°/inch |
1.26°/inch |
1.18°/inch |
0.72°/inch |
1.89°/inch |
| Maximum
Practical Visual Power |
400x |
500x |
600x |
350x |
400x |
600x |
400x |
| 35mm
Angular film Coverage |
1.78°
x 2.53° |
1.66°
x 2.37° |
1.34°
x 1.91° |
1.19°
x 1.70° |
1.11°
x 1.58° |
0.68°
x 0.97° |
1.78°
x 2.53° |
Optical
Tube Dimensions
(dia. x length) |
7.1"
x 27" |
10"
x 29.5" |
11.9"
x 36.1" |
6.3"
x 41" |
8"
x 42" |
9.1"
x 16.75" |
7.1"
x 27" |
| Secondary
Mirror Obstruction (dia.; %) |
2.14";
12.7% |
3.10";
15.0% |
3.19";
10.2% |
— |
— |
3.0"-14.1% |
2”;
11.1% |
| Counterweights |
1
x 10 lbs. |
2
x 10 lbs. |
3
x 10 lbs. |
1
x 10 lbs. |
2
x 10 lbs. |
2
x 10 lbs. |
1
x 10 lbs. |
| Tube
Body |
enameled
steel |
enameled
steel |
enameled
steel |
aluminum |
aluminum |
aluminum
|
enameled
steel |
| Mount
Castings |
aluminum |
aluminum |
aluminum |
aluminum |
aluminum |
aluminum
|
aluminum |
Primary,
Secondary Mirrors [Note]
|
Pyrex
® glass |
Pyrex
® glass |
Pyrex
® glass |
— |
— |
Pyrex
® glass |
Plate
Glass |
| Correcting
Plate/Lens |
clear
float glass |
clear
float glass |
clear
float glass |
— |
— |
clear
float glass |
|
| Objective
Lens |
— |
— |
— |
BK7;
F2 |
BK7;
F2 |
|
|
| Total
Net Telescope Weight |
48
lbs. |
69
lbs. |
85
lbs. |
49
lbs. |
72
lbs. |
65lbs. |
47
lbs. |
| Telescope
Shipping Weight (approx.) |
66
lbs. |
91
lbs. |
117
lbs. |
73
lbs. |
99
lbs. |
87
lbs. |
69
lbs. |
| [Note]
All Pyrex glass used in Meade Schmidt-Newtonian telescopes is of
Grade-A quality, fine-annealed. |
| [1] LX90 and LX200GPS
models may alternatively be powered from an automobile cigarette
lighter plug, using the #607 Power Cord. From a 115v AC home outlet
the LX90 may be powered by using the #541 AC adapter, or the LX200GPS
by using the #547 AC adapter. The #607, #541, and #547 include 25
ft. cords. [2] All Pyrex glass used in Meade Schmidt-Cassegrains
and Maksutov-Cassegrains is of Grade-A quality, fine-annealed. [3]
The standard equatorial wedge adds approx. 9", and the Superwedge
approx. 12", to the stated tripod heights. Wedges are supplied
optionally with the 8" LX90 and with 7", 8", and
10" LX200GPS models. |
|
|
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