CELESTRON NexStar 4 SE Computerized Telescope CELESTRON NexStar 4 SE Computerized Telescope

Model

Brand

CELESTRON

Model

NexStar 4 SE Computerized

Spec

Specifications

Optical Design : Maksutov-Cassegrain
Aperture : 102 mm (4.02 in)
Focal Length : 1325 mm (52.17 in)
Focal Ratio : 12.99
Finderscope : StarPointer
Dovetail Compatibility : Quick Release Tube Clamp
Mount : Single Fork Arm Altazimuth
Optical Tube : Aluminum
Eyepiece 1 : 25 mm (0.98 in)
Magnification 1 : 53 x
Star Diagonal : Internal Flip mirror for straight thru or 90 viewing angle
Other Equipment : Camera Shutter Cable
Tripod : Steel with built-in wedge
CD ROM : NexRemote V1.6.14 & "The Sky" Level 1
Power Supply : 8-AA batteries (not included)
Highest Useful Magnification : 241 x
Lowest Useful Magnification : 15 x
Limiting Stellar Magnitude : 12.5
Resolution (Rayleigh) : 1.37 arcsec
Resolution (Dawes) : 1.14 arcsec
Light Gathering Power : 212 x
Angular Field of View : 1 °
Linear Field of View (@1000 yds) : 53 ft (16.15 m)
Optical Coatings : StarBright XLT
Secondary Mirror Obstruction : 1.38 in (35.05 mm)
Secondary Mirror Obstruction by Area : 11.8 %
Secondary Mirror Obstruction by Diameter : 34.4 %
Optical Tube Length : 13.5 in (342.9 mm)
Telescope Weight : 11 lb (4.99 kg)
Motor Drive : Integrated D.C. Electronics
Computer Hand Control : Double line, 16 character Liquid Crystal Display with 19 fiber optic backlit LED buttons
Slew Speeds : Nine slew speeds: 4°/sec, 2°/sec, 1°/sec, 64x, 16x, 8x, 4x, 1x, .5x
Tracking Modes : Alt-Az, EQ North & EQ South
Alignment Procedures : SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, SolarSystem Align
Database : 38,181 accessible objects
Communication Ports : RS-232 communication port on hand control, Aux port, Camera Control port
Tracking Rates : Sidereal, Solar and Lunar

Features

Features

General
4" Maksutov-Cassegrain telescope
SE combines the classic heritage of the original orange tube telescopes with the latest state-of-the-art features
StarBright XLT high transmission coatings come standard
StarPointer finderscope to help with alignment and accurately locating objects
Internal flip mirror for convenient viewing straight through (with optional diagonal) or at 90 degrees
Quick release fork arm mount, optical tube and accessory tray for no-tool setup
Sturdy computerized Altazimuth mount
Internal battery compartment to prevent cord wrap during use
Ultra sturdy steel tripod features built-in wedge which allows 4 SE to be used for astrophotography
Includes CD-ROM "The Sky" Astronomy Software which provides education about the sky and printable sky maps

Computerized Mount
Proven NexStar computer control technology
Nearly 40,000 object database with 200 user-definable objects and expanded information on over 200 objects
SkyAlign allows you to align on any three bright celestial objects, making for a fast and easy alignment process
Flash upgradeable hand control software and motor control units for downloading product updates over the Internet
Includes a camera control feature and shutter release cable that allows you to remotely take a series of exposures using your digital SLR camera
Custom database lists of all the most famous deep-sky objects by name and catalog number; the most beautiful double, triple and quadruple stars; variable star; solar systems; objects and asterisms
DC Servo motors with encoders on both axes
Double line, 16-character Liquid Crystal Display Hand Control with backlit LED buttons for easy operation of goto features
NexRemote telescope control software and RS-232 cable included for advanced control of your telescope via computer
GPS-compatible with optional CN16 GPS Accessory