iOptron CEM40 Equatorial GoTo Mount with iPolar & 1.5" Tripod

• German equatorial configuration provides smooth and accurate celestial tracking for observation or astrophotography
• Center-balanced "Z" design places the weight over the mount's center of gravity to provide greater stability, smoother movement, and quieter running while requiring less counterweights
• 40-pound payload capacity, excluding included counterweight
• 0-60° latitude; ±6° azimuth adjustment range
• Integrated iPolar electronic polar finder works globally; no Polaris (north) or Sigma Octantis (south) necessary; no need to rotate the mount during alignment
• Built-in 32-channel GPS receiver transmits accurate date, location, and time to the hand controller, so when you change your position, the telescope can be set up quickly with accurate information
• Dual-fit 8" Losmandy and Vixen-style dovetail saddle accommodates most OTAs on the market today
• Retractable 28mm diameter & 11" long counterweight bar prevents hitting the tripod or otherwise interfering with the mount's movement; 11-pound counterweight included

• Less than ±7 arcsec tracking error
• 1.8° stepper motor with 128x microdivision
• 110mm, 216-tooth right ascension (RA) and declination (dec) worm wheels with zero backlash
• 68mm RA and declination ball bearings provide smooth movement with minimal vibration
• 45mm steel RA and dec axis shafts
• Synchronous belt transmission improves tracking accuracy, with reduced vibration, especially with heavy loads
• RA and declination gear switches release the gears for balancing OTA
• Precise 0.08 arcsec (200 pulse/sec) motor resolution
• Low-power consumption: 0.6A (tracking), 0.9A (using GoTo)
• Runs on included 12 VDC 5A power adapter; plugs into a standard 110-240 VAC North American outlet

• 212,000+ object database includes the moon, sun, planets, stars, comets, asteroids, and constellations
• Multiple assisted alignment procedures use the built-in GPS module and iPolar electronic polar finder
• Slew speeds: 1x, 2x, 8x, 16x, 64x, 128x, 256x, 512x, MAX (4.5°/sec)
• Permanent periodic error correction eliminates tracking errors for long-exposure astrophotography
• Tracking rates: Sidereal, Lunar, Solar, King's, user-defined from 0.99x to 1.01x of Sidereal
• Star Identification function will tell user what star the mount is pointed at after proper alignment
• Computer control with planetarium software via integrated autoguiding port
• Control for optional electronic focuser
• Control optional illuminated polar scope light intensity
• Fully compatible with mount's integrated GPS module to automatically determine day, date, time, and location
• Serial port for firmware upgrade
• Adjustable key and display brightness
• Integrated heater that ensures the LCD display will work at temperatures as low as -4°F (-20°C)
• 8-line/21-character LCD screen; backlit 19-button user interface

Database details:

• Solar system: 9 objects, including the sun, moon, planets (& Pluto)
• Named objects: 92 deep-sky objects with their common names
• Messier catalog: 110 objects
• NGC catalog: 7840 objects
• IC catalog: 5386 objects
• PGC catalog: 73,197 objects.
• Caldwell catalog: 109 objects
• Abell catalog: 4076 objects
• Herschel catalog: 400 objects
• Named stars: 259 stars with their common names
• Double/multi stars: 208 stars
• Hipparcos catalog: 120,404 stars
• 88 modern constellations with their names
• 15 comets
• 116 asteroids
• 60 user-defined objects, including comets

• 1.5" stainless steel, two leg sections
• Adjustable height of 25-42"
• 48" maximum leg spread
• Accessory tray with a locking leg spreader
• Spiked feet for greater stability on uneven ground
• Weight: 10 lb (5 kg)