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Meade 90mm OTA with Deluxe tripod. Good condition with a few small nicks in the tripod case.
Optical Tube Assembly
- 90mm aperture
- f/13.8 focal ratio
- 1250mm 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: 1.29 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
- 1/4"-20 mount to attach onto many photo/video/field tripods
- 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: 15x7x9"
- 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
- Accepts most 1.25" astronomical filters
- 26mm Super Plössl produces 48x
- 9.7mm Super Plössl produces 129x
- Carrying Options:
- Hard carrying case with custom-cut foam lining for OTA, mount and accessories
- exterior protects during transport and storage
- Carrying bag for tripod with shoulder strap
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