| Catadioptrics |
11071
C5-S |
11072
C5-SGT |
11025
C8-S |
11026
C8-SGT |
11045
C9 1/4-S |
11046
C9 1/4-SGT |
11041
NexStar 4GT |
11034
NexStar 5i |
11022
NexStar 8i |
11056
NexStar 9 1/4 GPS |
11053
NexStar 11 GPS |
11058
CGE 800 |
11059
CGE 925 |
11061
CGE 1100 |
11063
CGE 1400 |
Optical Design |
127mm
(5.0")
SCT |
127mm
(5.0")
SCT |
203mm
(8")
SCT |
203mm
(8")
SCT |
235mm
(9.25")
SCT |
235mm
(9.25")
SCT |
102mm (4") Maksutov-Cassegrain |
5" Schmidt-Cassegrain |
8" Schmidt-Cassegrain |
9.25" Schmidt-Cassegrain |
11" Schmidt-Cassegrain |
8" Schmidt-Cassegrain |
9.25" Schmidt-Cassegrain |
11" Schmidt-Cassegrain |
14" Schmidt-Cassegrain |
Focal Length |
1250mm
f/10 |
1250mm
f/10 |
2032mm
f/10 |
2032mm
f/10 |
2350mm
f/10 |
2350mm
f/10 |
1325mm
f/13 |
1250mm
f/10 |
2032mm
f/10 |
2350mm
f/10 |
2800mm
f/10 |
2032mm
f/10 |
2350mm
f/10 |
2800mm
f/10 |
3910mm f/11 |
Finderscope |
6x30 |
6x30 |
6x30 |
6x30 |
6x30 |
6x30 |
StarPointer |
StarPointer |
StarPointer |
9x50 |
9x50 |
6x30 |
6x30 |
9x50 |
9x50 |
Mount |
CG-5
Equatorial |
CG-5
Equatorial |
CG-5
Equatorial |
CG-5
Equatorial |
CG-5
Equatorial |
CG-5
Equatorial |
Motorized Altazimuth |
Altazimuth, Fork Arm |
Altazimuth, Fork Arm |
Dual Fork Arm |
Dual Fork Arm |
Computerized Equatorial Mount |
Computerized Equatorial Mount |
Computerized Equatorial Mount |
Computerized Equatorial Mount |
| Optical Tube |
Aluminum |
Aluminum |
Aluminum |
Aluminum |
Aluminum |
Aluminum |
Aluminum |
Aluminum |
Aluminum |
Carbon Fiber |
Carbon Fiber |
Carbon Fiber |
Aluminum |
Carbon Fiber |
Aluminum |
| Fastar Compatible |
|
|
|
|
|
|
|
|
|
No |
Yes |
Yes |
No |
No |
Yes (only 11064-XLT) |
Eyepiece |
1-1/4"
25mm
(50x) |
1-1/4"
25mm
(50x) |
1-1/4"
25mm
(81x) |
1-1/4"
25mm
(81x) |
1-1/4"
25mm
(94x) |
1-1/4"
25mm
(94x) |
1-1/4" 25mm (53x), 1-1/4" 10mm (133x) |
1-1/4" 25mm Plössl (50x) |
1-1/4"
25mm Plössl (81x) |
1-1/4"
40mm Plössl (59x) |
1-1/4"
40mm Plössl (70x) |
1-1/4"
25mm Plössl (81x) |
1-1/4"
25mm Plössl (94x)
|
1-1/4"
40mm Plössl (70x) |
2"
40mm
(98x) |
| Star Diagonal
|
1-1/4" |
1-1/4" |
1-1/4" |
1-1/4" |
1-1/4" |
1-1/4" |
1.25" w/ flip mirror system |
1-1/4" |
1-1/4" |
1-1/4" |
1-1/4" |
1-1/4" |
1-1/4" |
1-1/4" |
2" with 1-1/4" adapter |
Tripod |
2" Stainless
Steel |
2" Stainless
Steel |
2" Stainless
Steel |
2" Stainless
Steel |
2" Stainless
Steel |
2" Stainless
Steel |
n/a |
|
|
Heavy Duty Adjustable |
Heavy Duty Adjustable |
Adjustable, Carbon Steel |
Adjustable, Carbon Steel |
Adjustable, Carbon Steel |
Adjustable, Carbon Steel |
AC Adapter |
|
|
|
|
|
|
|
|
|
Included |
Included |
Car Battery Adapter Included |
Car Battery Adapter Included |
Car Battery Adapter Included |
Car Battery Adapter Included |
Computer Hand Control |
|
Double line,
16 character
Crystal Display;
19 fiber
optic backlit LED buttons |
|
Double line,
16 character
Crystal Display;
19 fiber
optic backlit LED buttons |
|
Double line,
16 character
Crystal Display;
19 fiber
optic backlit LED buttons |
Fully Computerized |
Double line, 16 character Liquid
Crystal Display; 19 fiber optic backlit LED buttons |
Double line, 16 character Liquid
Crystal Display; 19 fiber optic backlit LED buttons |
Double line, 16 character Liquid Crystal Display;
19 fiber optic backlit LED buttons |
Double line, 16 character Liquid Crystal Display;
19 fiber optic backlit LED buttons |
Double line, 16 character Liquid Crystal Display;
19 fiber optic backlit LED buttons |
Double line, 16 character Liquid Crystal Display;
19 fiber optic backlit LED buttons |
Double line, 16 character Liquid Crystal Display;
19 fiber optic backlit LED buttons |
Double line, 16 character Liquid Crystal Display;
19 fiber optic backlit LED buttons |
Hand Control Ports |
|
|
|
|
|
|
|
|
|
RS-232 communication port on hand control |
RS-232 communication port on hand control |
|
|
|
|
Motor Ports |
|
|
|
|
|
|
|
|
|
Aux Port, Autoguide Ports |
Aux Port, Autoguide Ports |
|
|
|
|
| Database |
|
40,000+ objects,
400 user
defined
programmable
objects |
|
40,000+ objects,
400 user
defined
programmable
objects |
|
40,000+ objects,
400 user
defined
programmable
objects |
4,000 Object Database |
40,000+ objects; 400 user defined
programmable objects; enhanced information on over 200 objects |
40,000+ objects; 400 user defined
programmable objects; enhanced information on over 200 objects |
40,000 Object Database |
40,000 Object Database |
40,000+ objects; 400 user defined
programmable objects; enhanced information on over 200 objects |
40,000+ objects; 400 user defined
programmable objects; enhanced information on over 200 objects |
40,000+ objects; 400 user defined
programmable objects; enhanced information on over 200 objects |
40,000+ objects; 400 user defined
programmable objects; enhanced information on over 200 objects |
GPS |
|
|
|
|
|
|
|
|
|
16 channel |
16 channel |
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Motor: Type |
|
DC Servo
motors with
encoders, both axes |
|
DC Servo
motors with
encoders, both axes |
|
DC Servo
motors with
encoders, both axes |
|
Integrated Dual Axis Servo |
Integrated Dual Axis Servo |
DC Servo motors with encoders, both axes |
DC Servo motors with encoders,
both axes |
DC Servo motors with encoders,
both axes |
DC Servo motors with encoders,
both axes |
DC Servo motors with encoders,
both axes |
DC Servo motors with encoders,
both axes |
| Resolution |
1.1
arcseconds |
1.1
arcseconds |
.68
arcseconds |
.68
arcseconds |
.59
arcseconds |
.59
arcseconds |
1.36 arcseconds |
1.1 arcseconds |
.68 arcseconds |
.1125 arcsecond |
.1125 arcsecond |
|
|
|
|
Slew Speeds |
|
Max 4°/second |
|
Max 4°/second |
|
Max 4°/second |
Nine slew speeds: 4º/sec, 2º/sec, 1º/sec,
.5 /sec, 32x, 16x, 8x, 4x, 2x |
Nine slew speeds: 6º/sec, 3º/sec,
1.5º/sec, 128x, 64x, 16x, 8x, 2x, 1x |
Nine slew speeds: 6º/sec, 3º/sec,
1.5º/sec, 128x, 64x, 16x, 8x, 2x, 1x |
Nine slew speeds: 3º/sec, 2º/sec, .5º/sec,
64x, 16x, 8x, 4x, 1x, .5x |
Nine slew speeds: 3º/sec, 2º/sec, .5º/sec,
64x, 16x, 8x, 4x, 1x, .5x |
Nine slew speeds: 3º/sec,
2º/sec, .5º/sec, 64x, 16x, 8x, 4x, 1x, .5x |
Nine slew speeds: 3º/sec,
2º/sec, .5º/sec, 64x, 16x, 8x, 4x, 1x, .5x |
Nine slew speeds: 3º/sec,
2º/sec, .5º/sec, 64x, 16x, 8x, 4x, 1x, .5x |
Nine slew speeds: 3º/sec,
2º/sec, .5º/sec, 64x, 16x, 8x, 4x, 1x, .5x |
| Software precision |
|
24bit,
0.08 arcsec
calculation |
|
24bit,
0.08 arcsec
calculation |
|
24bit,
0.08 arcsec
calculation |
|
24bit, 0.08 arcsec calculations |
24bit, 0.08 arcsec calculations |
24bit, 0.08 arcsec calculations |
24bit, 0.08 arcsec calculations |
24bit, 0.08 arcsec calculations |
24bit, 0.08 arcsec calculations |
24bit, 0.08 arcsec calculations |
24bit, 0.08 arcsec calculations |
Tracking Rates |
|
Sidereal,
Solar
and Lunar |
|
Sidereal,
Solar
and Lunar |
|
Sidereal,
Solar
and Lunar |
Sidereal, Solar and Lunar Sidereal |
Sidereal, Solar and Lunar |
Sidereal, Solar and Lunar |
Sidereal, Solar and Lunar |
Sidereal, Solar and Lunar |
Sidereal, Solar and Lunar |
Sidereal, Solar and Lunar |
Sidereal, Solar and Lunar |
Sidereal, Solar and Lunar |
Tracking Modes |
|
EQ North &
EQ South |
|
EQ North &
EQ South |
|
EQ North &
EQ South |
|
Alt-Az, EQ North & EQ South |
Alt-Az, EQ North & EQ South |
Altazimuth, EQ North & EQ South |
Altazimuth, EQ North & EQ South |
Altazimuth, EQ North & EQ South |
Altazimuth, EQ North & EQ South |
Altazimuth, EQ North & EQ South |
Altazimuth, EQ North & EQ South |
Alignment Procedures |
|
AutoAlign,
2-Star Alignment,
Quick Align |
|
AutoAlign,
2-Star Alignment,
Quick Align |
|
AutoAlign,
2-Star Alignment,
Quick Align |
|
2-Star Alignment, AutoAlign, EQ North/South and GPS
Align (with optional CN16 GPS Accessory) |
2-Star Alignment, AutoAlign, EQ North/South and GPS
Align (with optional CN16 GPS Accessory) |
AutoAlign, 2-Star Alignment, Quick Align |
AutoAlign, 2-Star Alignment, Quick Align |
AutoAlign, 2-Star Alignment, Quick Align |
AutoAlign, 2-Star Alignment, Quick Align |
AutoAlign, 2-Star Alignment, Quick Align |
AutoAlign, 2-Star Alignment, Quick Align |
Highest Useful Magnification |
|
300x |
|
480x |
|
555x |
240x |
300x |
480x |
555x |
660x |
480x |
555x |
660x |
840x |
Lowest Useful Magnification |
|
18x |
|
29x |
|
34x |
15x |
18x |
29x |
34x |
40x |
29x |
34x |
40x |
51x |
Limiting Stellar Magnitude |
|
13 |
|
14 |
|
14.4 |
12.5 |
13 |
14 |
14.4 |
14.7 |
14 |
14.4 |
14.7 |
15.3 |
Resolution: Rayleigh |
1.1
arcseconds |
1.1
arcseconds |
.68
arcseconds |
.68
arcseconds |
.59
arcseconds |
.59
arcseconds |
1.36 arcseconds |
1.1 arcseconds |
.68 arcseconds |
.59 arcseconds |
.50 arcseconds |
.68 arcseconds |
.59 arcseconds |
.50 arcseconds |
.39 arcseconds |
Dawes Limit |
.91
arcseconds |
.91
arcseconds |
.57
arcseconds |
.57
arcseconds |
.49
arcseconds |
.49
arcseconds |
1.14 arcseconds |
.91 arcseconds |
.57 arcseconds |
.49 arcseconds |
.42 arcseconds |
.57 arcseconds |
.49 arcseconds |
.42 arcseconds |
.33 arcseconds |
Photographic Resolution |
200
lines/mm |
200
lines/mm |
200
lines/mm |
200
lines/mm |
200
lines/mm |
200
lines/mm |
140
lines/mm |
200
lines/mm |
200
lines/mm |
200
lines/mm |
200
lines/mm |
200
lines/mm |
200
lines/mm |
200
lines/mm |
165
lines/mm |
Light Gathering Power |
329x
unaided
eye |
329x
unaided
eye |
843x
unaided
eye |
843x
unaided
eye |
1127x
unaided
eye |
1127x
unaided
eye |
212x unaided eye |
329x unaided eye |
843x unaided eye |
1127x unaided eye |
1593x unaided eye |
843x unaided eye |
1127x unaided eye |
1593x unaided eye |
2581x unaided eye |
Field of View: Standar
Eyepiece |
1° |
1° |
.64° |
.64° |
.55° |
.55° |
1º |
1º |
.63º |
.88º |
.46º |
.62º |
.53º |
.71º |
.51º |
Linear FOV (@1,000 yd.) |
52.5 ft |
52.5 ft |
33.6 ft |
33.6 ft |
29 ft |
29 ft |
52.5 ft. |
52.5 ft. |
33 ft. |
46 ft |
24 ft. |
32 ft. |
28 ft. |
38 ft. |
27 ft. |
Optical Coatings |
StarBright
Coating |
StarBright
Coating |
StarBright
Coating |
StarBright
Coating |
StarBright
Coating |
StarBright
Coating |
Aluminum/Multi-Coated |
StarBright Coating |
StarBright Coating |
StarBright Coating |
StarBright Coating |
StarBright Coating |
StarBright Coating |
StarBright Coating |
StarBright Coating |
Secondary Mirror Obstruction |
1.75" |
1.75" |
2.5" |
2.5" |
3.35" |
3.35" |
1.38" |
1.75" |
2.5" |
3.35" |
3.75" |
2.7" |
3.35" |
3.75" |
4.5" |
| by Area |
12% |
12% |
10% |
10% |
13% |
13% |
11% |
12% |
10% |
13% |
12% |
11% |
13% |
12% |
10% |
by Diameter |
35% |
35% |
31% |
31% |
36% |
36% |
35% |
35% |
31% |
36% |
34% |
34% |
36% |
34% |
32% |
Optical Tube Length |
14" |
14" |
17" |
17" |
22" |
22" |
13.5" |
11" |
17" |
22" |
23" |
17" |
22" |
23" |
31" |
Telescope Weight |
24 lb. |
24 lb. |
54.5 lb. |
54.5 lb. |
62 lb. |
62 lb.s |
11 lb. |
17.6 lb. |
24 lb. |
58 lb. |
65 lb. |
|
|
|
|
Tripod/Mount Weight |
|
|
|
|
|
|
|
|
|
19 lb. |
19 lb. |
41.5 lb. |
41.5 lb. |
41.5 lb. |
41.5 lb. |