Celestron NexStar 4SE Telescope

Astronomical telescope with Scmidt-Cassegrain optical system. It has an aperture of 102mm or 4 "and a focal ratio of f / 13. The optical tube is completed with a motorized mount or GO-TO , Altacimuth fork , with the possibility of becoming equatorial by means of a wedge already included.
The NexStar 4 SE is an ideal telescope for planetary observation as well as useful for taking the first steps in deep sky observation. The mirror system, mostly the diameter of the primary mirror , gives it enough light to see Saturn and its rings, Jupiter and its atmosphere, moon craters in great detail, etc., as well as versatility for deep sky makes it an excellent tool for observing galaxies, constellations, and nebulae .
Incorporating StarBright XLT multi-coated optical treatment, this treatment ensures optimal light transmission and also effective performance of both image brightness and contrast . This aspect is key in astronomical observation, especially in the planetary one, since definition is gained in the details.
The Altazimuth fork mount is specially designed for observation . Although we are talking about a 4 "telescope, the mount materials are light but very stable, and that makes it a great advantage to transport the telescope to a place where we can ensure an absolutely clean sky, without light pollution.
The GO-TO system that incorporates the mount allows precise and stable tracking of those celestial objects that we want to observe. The remote control and its NexStar + system allow to store up to 40,000 points or celestial objects, in addition to the function of a true space tour through the most interesting points in the sky. The SkyAlign alignment system allows the telescope to be aligned in three steps. You start by centering three shiny objects, click the align button and you're ready to start the tour!
The system supports more advanced functions not included in this product: The StarSense system or the SkySync GPS system.
Characteristics:

• Optical design: Maksutov-Cassegrain retro-reflector
  
• Aperture: 102mm
  
• Focal length: 1325mm
  
• Focal ratio: f / 13
  
• Finder: Luminous Pointer
  
• Frame: Altazimuth with single arm fork
  
• Optical tube: Aluminum
  
• Optical treatment: Starbright XLT
  
• Eyepieces: 25mm (53x) - 31.8mm Ø
  
• Zenithal prism: Flip-up mirror straight / 90 ° - 31.8mm Ø
  
• Tripod: Stainless steel, adjustable height and integrated equatorial mount
  
• CD-Rom: TheSkyX, NexRemote and RS-232 cable programs
  
• Power: 12VDC transformer included / 8 x 1.5V batteries (not included)
  
• Maximum Useful Magnification: 240x
  
• Minimum Useful Magnification: 15x
  
• Limit stellar magnitude: 12.5
  
• Field of view (with standard eyepiece): 1 °
  
• Light gathering power: 212x
  
• Resolution (Rayleigh): 1.36 arcseconds
  
• Resolution (Dawes): 1.14 arcseconds
  
• Motorization: DC servomotors with encoders on both axes
  
• Computerized control unit: Computerized control unit with 16-character LCD screen, two reading lines and 19 backlit keys
  
• Turning Speeds: Nine Turning Speeds: 5 ° / sec, 2 ° / sec, 1 ° / sec, 64x, 16x, 8x, 4x, 1x, 0.5x
  
• Tracking Range: Sidereal, Solar, and Lunar
  
• Tracking modes: Altazimuth, North Equatorial and South Equatorial
  
• Alignment processes: 2-star alignment, Quick alignment, 1-star alignment, Recent alignment, Alignment with the solar system
  
• Program accuracy: 24 bit, 0.08
  
• Database: Database with more than 40,000 objects, 100 user-definable objects and didactic information of another 200
  
• GPS: SkySync optional
  
• Tube length: 34.3cm
  
• Telescope weight: 9.9kg