CEN127SLT

22097

Celestron

Designed as an entry- to mid-level astronomical observation platform, the Celestron NexStar 127SLT 127mm f/12 Maksutov-Cassegrain GoTo Telescope gives users the ability to make detailed observations of the Moon, with the ability to easily see planets and reach outside the solar system to resolve distant objects like galaxies, nebulae, and binary or variable stars. The compact and powerful Maksutov-Cassegrain design corrects off-axis aberrations like comas and chromatic aberrations to produce images with true color rendition through the use of a front corrector plate with a convex meniscus lens, which not only eliminates the need for periodic collimation, but by the nature of the lens requires a smaller secondary mirror to limit obstruction and increase contrast.The brain of the NexStar SLT is the venerable NexStar computer controller. Equipped with a database of over 4000 objects, including the planets, stars, nebulae, galaxies, and the complete Messier catalog, it can also be programmed with up to 99 custom user-defined objects and filters for custom object lists. Its intuitive menu-driven user interface provides the power to observe the heavens with nine slew speeds and three tracking rates, plus anti-backlash compensation. Features such as guided tours, extended information on 200 popular objects, and multiple alignment options make the NexStar controller easy to use and invaluable to new users and experienced stargazers alike.Optical Tube 127mm aperturef/12 focal ratio1500mm focal lengthMaksutov-Cassegrain optical designFront convex meniscus lens corrects spherical and chromatic aberrations and comas (off-axis aberration) across the entire field of viewCompared to Schmidt-Cassegrain telescopes, a smaller secondary mirror reduces obstructions and increases contrastFully coated optics improve light transmission, color rendition, and contrastResolution: 1.1 arcsec (Rayleigh); 0.91 (Dawes)Internal focusing systemVixen-style dovetail plateNexStar Controller 4000+ object database99 customizable user-defined objectsExpanded information on over 200 most popular objects including history, facts, and mythologyTracking rates: Sidereal, Solar, LunarNine slew speeds: 2x, 4x, 8x, 16x, 32x, 64x, 1 /sec, 2 /sec, 3 /secAnti-backlash compensation trains out the intrinsic play between gears to improve GoTo and tracking accuracyAlignment procedures: SkyAlign, Auto 2-star, 1-star, 2-star, solar systemSkyAlign allows fast and easy alignment without having to polar align or even know the names of starsTour mode: Seeks out the best objects and automatically slews to themConstellation Tour: Tour of the best objects within a specific constellationIdentify mode: Searches the database catalogs or lists and displays the name and offset distances to the nearest matching objectFlash upgradable via Internet2-line/16-character LCD display with 19 backlit LED buttonsRS-232 communication port for updating or computer controlDatabase:Solar system: Includes planets, Moon, and SunConstellationsNamed ObjectsAsterismsVariable starsDouble starsAbell catalogIC catalogCaldwell catalogMessier catalogNGC catalogSAO catalog Mount and Tripod Mount:Single-arm fork designDual-axis DC servo motorsOptical encoders on motors improve GoTo and tracking accuracy; up to 0.26 arcsec accuracyInternal battery compartment to prevent cord wrap during useHand control and motors are powered by eight user-supplied AA batteries or optional 12 VAC adapterNo-tool setup, complete quick release setup and breakdownTripod:Stainless steel legs improve stability and vibration reductionAdjustable height accommodates a variety of users and viewing positionsCenter tray holds accessories like eyepieces, filters, and smartphonesMovable NexStar controller helps to prevent cord wrapIncluded Accessories Eyepieces:1.25"-diameter barrelAccepts most 1.25" astronomical filters9mm focal length produces 167x power25mm focal length yields 60x powerDiagonal:90 angle places head at a comfortable viewi