Filter
Top Products
Appendix A - Technical Specifications
O
O
O
p
p
p
t
t
t
i
i
i
c
c
c
a
a
a
l
l
l
S
S
S
p
p
p
e
e
e
c
c
c
i
i
i
f
f
f
i
i
i
c
c
c
a
a
a
t
t
t
i
i
i
o
o
o
n
n
n
NexStar 6SE (#11068) NexStar 8SE (#11069)
Design Schmidt Cassegrain Optical
Design
Schmidt Cassegrain Optical
Design
Aperture 6 inches (150mm) 8 inches (200mm)
Focal Length 60 inches (1500mm) 80 inches (2032mm)
F/ratio of the Optical System 10 10
Primary Mirror: Diameter
Coatings
150mm
Starbright XLT®
100mm
Starbright XLT®
Secondary Mirror Spot Size
Secondary Obstruction
2.2"
37% by diameter; 14% by area
2.5"
35% by diameter; 12% by area
Corrector Plate: Material
Coatings
Optical Quality Crown Glass
Starbright XLT®
Optical Quality Crown Glass
Starbright XLT®
Highest Useful Magnification 354x 480x
Lowest Useful Magnification (7mm exit pupil) 21x 29x
Resolution: Rayleigh Criterion
Dawes Limit
.92 arc seconds
.77 arc seconds
.68 arc seconds
.57 arc seconds
Light Gathering Power 459x unaided eye 843x unaided eye
Near Focus standard eyepiece or camera ~ 20 feet ~ 25 feet
Field of View: Standard Eyepiece .8º .64º
Linear Field of View (at 1000 yds) 42 feet 33.6 feet
Magnification: Standard Eyepiece 60x 81x
Optical Tube Length 16 inches 17 inches
Weight of Telescope 21 Lbs. 24 Lbs.
Weight of Tripod 9 lbs 9 lbs
E
E
E
l
l
l
e
e
e
c
c
c
t
t
t
r
r
r
o
o
o
n
n
n
i
i
i
c
c
c
S
S
S
p
p
p
e
e
e
c
c
c
i
i
i
f
f
f
i
i
i
c
c
c
a
a
a
t
t
t
i
i
i
o
o
o
n
n
n
s
s
s
Input Voltage
12 V DC Nominal
Batteries Required 8 AA Alkaline
Power Supply Requirements 12 VDC-750 mA (Tip positive)
M
M
M
e
e
e
c
c
c
h
h
h
a
a
a
n
n
n
i
i
i
c
c
c
a
a
a
l
l
l
S
S
S
p
p
p
e
e
e
c
c
c
i
i
i
f
f
f
i
i
i
c
c
c
a
a
a
t
t
t
i
i
i
o
o
o
n
n
n
s
s
s
Motor: Type
Resolution
DC Servo motors with encoders, both axes
.26 arc sec
Slew speeds Nine slew speeds: 5º /sec, 3º /sec, 1º/sec, .5/sec, 32x, 16x, 8x, 4x, 2x
Hand Control
Double line, 16 character Liquid Crystal Display
19 fiber optic backlit LED buttons
Fork Arm Cast aluminum, with integrated hand control receptacle
S
S
S
o
o
o
f
f
f
t
t
t
w
w
w
a
a
a
r
r
r
e
e
e
S
S
S
p
p
p
e
e
e
c
c
c
i
i
i
f
f
f
i
i
i
c
c
c
a
a
a
t
t
t
i
i
i
o
o
o
n
n
n
s
s
s
Software Precision 16 bit, 20 arc sec. calculations
Ports RS-232 communication port on hand control
Tracking Rates Sidereal, Solar, Lunar and King
Tracking Modes Alt-Az, EQ North & EQ South
Alignment Procedures SkyAlign, Auto Two-Star, Two-Star, One-Star, Solar System Align
Database 200 user defined programmable object.
Enhanced information on over 200 objects
Total Object Database +40,000