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Celestron NexStar 4 (XLT) SE Maksutov-Cassegrain Telescope
Celestron NexStar 4 (XLT) SE Maksutov-Cassegrain Telescope

Product code: TD230
Manufacturer: Celestron
£349.00 £299.00

Featuring high-quality Maksutov-Cassegrain optics, the NexStar 4SE is an ideal telescope for observing and photographing the wonders of space. With a total weight of 21 lbs including the tripod, the ultra portable 4 SE features a precision optical system with 1,325 mm focal length (f/13) and is the first Maksutov system to ever feature our premium StarBright XLT coatings.

The 4 SE includes a camera control feature that allows you to remotely take a series of timed exposures using your digital SLR camera. Plus the Flip Mirror Control, Straight Through Photographic Port and Tripod featuring a built-in wedge help make short-exposure astrophotography a heavenly experience.

The NexStar 4 SE has all the same features as Celestron's most advanced computerized GoTo telescopes, including our revolutionary SkyAlign alignment technology, a sky tour feature, a database of nearly 40,000 celestial objects and easy to use hand control.

Plug the optional CN-16 GPS Accessory into NexStar's auxiliary port and download data from orbiting GPS satellites for truly quick and easy alignments. The universe may be full of mysteries, but using the NexStar 4 SE isn't one of them.

In the tradition of Celestron's famous orange optical tubes, the new NexStar SE Family combines the classic heritage of the original orange tube telescopes with state-of-the-art features including a fully computerized operating system, flash upgradeable hand control, superior StarBright XLT coatings, revolutionary SkyAlign telescope alignment software and much more.

Every NexStar SE includes a version of The Sky software Level 1 Planetarium software for exploring the Universe on your PC and printing out custom star charts of the sky. In addition, you receive NexRemote software that allows you to operate your telescope via your PC.

General Details:

  • 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 Details:

  • 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

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 w/ built-in wedge

CD ROM

NexRemote V1.6.14 & The Sky L1

POWER SUPPLY

8-AA batteries (not included)

HIGHEST USEFUL MAGNIFICATION

240 x

LOWEST USEFUL MAGNIFICATION

14 x

LIMITING STELLAR MAGNITUDE

12.5

RESOLUTION

1.36 arc seconds

RESOLVING POWER

1.14 arc seconds

LIGHT GATHERING POWER

212 x

ANGULAR FIELD OF VIEW

1 °

LINEAR FIELD OF VIEW (@1000 YDS)

52.5 ft (16 m)

OPTICAL COATINGS

StarBright XLT

SECONDARY MIRROR OBSTRUCTION

1.38 in (35.05 mm)

SECONDARY MIRROR OBSTRUCTION BY AREA

11 %

SECONDARY MIRROR OBSTRUCTION BY DIAMETER

35 %

OPTICAL TUBE LENGTH

13.5 in (342.9 mm)

TELESCOPE WEIGHT

11 lb (4.99 kg)

TRIPOD AND MOUNT WEIGHT

10 lb (4.54 kg)

MOTOR DRIVE

Integrated D.C. Electronics

COMPUTER HAND CONTROL

Double line, 16 character Liquid Crystal Display w/ 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

SOFTWARE FEATURES

Camera Control

ALIGNMENT PROCEDURES

SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, SolarSystem Align

DATABASE

38,181 accessible objects

SOFTWARE PRECISION

24bit, 0.08 arcsec calculations

COMMUNICATION PORTS

RS-232 communication port on hand control, Aux port, Camera Control port

TRACKING RATES

Sidereal, Solar and Lunar



 
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