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Building of the success of the smaller 90mm iteration, Meade Instruments upgrades the aperture and focal length to give you a complete GoTo-enabled observation rig with the ability to make detailed observations of the Moon and planets and reach outside the solar system to resolve bright deep-space objects with their ETX125 Observer 127mm f/15 Maksutov-Cassegrain GoTo Telescope. The compact and powerful Maksutov design uses a front corrector plate with a convex meniscus lens to correct off-axis aberrations, like comas, and chromatic aberration to produce images with true-color rendition. The nature of the lens results in a smaller secondary mirror—limiting obstruction and increasing contrast, while eliminating the need for periodic collimation. This optical path results in a slower focal ratio and narrower field of view versus a similar Schmidt-Cassegrain variant, but the optical benefits makes this an ideal scope for all types of celestial observations.
For those who want to use it for astrophotography, an internal mirror flips down to direct the light path straight back for prime-focus photography using a DSLR camera body and optional adapters. An equatorial tilt plate is integrated into the tripod, which allows for proper polar alignment and single-axis tracking for smoother and more precise tracking as required by long-exposure photography.
The brain of this system is Meade's revolutionary AudioStar hand controller. Equipped with a 2-line LED display and 20-key red backlit keypad and an integrated speaker, it controls the motorized mount for precise GoTo capabilities. Its internal 30,000+ object database is updatable via the Internet and has the capability to take you on a hands-free guided tour of the night sky above, with four hours of audio commentary on select objects with expanded information. To consult star charts and logs, or to change eyepieces and filters, the controller also has a built-in red LED utility light that won't affect your night-adjusted vision.
Optical Tube Assembly
127mm aperture
f/15 focal ratio
1900mm focal length
Maksutov-Cassegrain optical configuration
Front convex meniscus lens corrects spherical and chromatic aberrations and comas (off-axis aberrations) across the entire field of view
Smaller secondary mirror versus Schmidt-Cassegrains reduces obstructions and increases contrast
Proprietary Ultra-High Transmission Coating (UTHC) system improves light transmission for brighter images and increases color fidelity and contrast
Resolution: 0.9 arcsec
Internal flip mirror for dual viewing: Find, center, and focus a target object visually with an eyepiece, then photograph it with a camera without changing gear
Internal focusing system
Vixen-style dovetail plate
AudioStar Hand Controller
2-line LED display
20-key alphanumeric keypad, red LED backlight
68HC11, 8MHz processor
Built-in red utility light
30,000+ object database
User-friendly menu-driven system navigation
Slew speeds: 1x, 2x, 8x, 16x, 64x, 0.5°/sec, 1°/sec, 1.5°/sec, 4°/sec (max)
Assisted alignment procedures: Easy (Two-Star), One-star, Two-star, Three-star
Customizable guided tours for specific date, time, and location
Built-in speaker provides descriptions of over 500 objects including scientific data and history
Projects events to plan future astronomy sessions such as sunrises/sunsets, Moon phases/moonrises/moonsets, meteor showers, lunar/solar eclipses, equinoxes/solstices
Backlash compensation allows user to train out the intrinsic play between gears to improve GoTo and tracking accuracy
Powered by mount to be lighter and easier to use
24" coiled cord
Updatable via Internet using RS-232 port
Database details:
Solar system, including Moon, Sun, planets
Comets and asteroids
88 major constellations
Popular named objects
Galaxies, quasars, and nebulae
Multiple catalogs including Messier, Caldwell, and NGC
Stars, including named stars, SAO catalog, double stars, variable stars
Satellites, including the International Space Station (ISS) and Hubble Space Telescope (HST)
User-defined astronomical and terrestrial objects
Dimensions:
Length: 6.6" (17cm)
Width, top: 3.2" (80cm)
Width, bottom: 2.25" (57cm)
Depth: 0.8" (21cm)
Weight: 17.9 oz (508g)
Mount and Tripod
Mount:
Dual-tine alt-azimuth fork
Vixen-style dovetail saddle
Dual DC servo motors with encoders
Bearings: Altitude: UHMW polyethylene; Azimuth: PTFE
Runs on six user-supplied AA batteries with a max runtime of 20 hours when using AudioStar
Compact design
Tripod:
Adjustable height
Stainless steel legs
Leg-locking plate for additional stability
Center column hook for bags, weights, or anchors to add stability and reduce vibrations
Equatorial mounting plate for precise polar alignment required for long-exposure astrophotography
Included Accessories
Finder:
Unmagnified, enables fast and easy alignment
Simple red-dot reticle won't obscure small or dim targets
Adjustable intensity
Eyepieces:
1.25"-diameter barrel
Accept most 1.25" astronomical filters
26mm Super Plössl produces 73x
9.7mm Super Plössl produces 196x
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