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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

Input Voltage

12 V DC Nominal

Batteries Required 8 AA Alkaline

Power Supply Requirements 12 VDC-750 mA (Tip positive)

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

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

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Filed under: High-End Telescope Auctions (USA)