Taking design cues from their venerable CEM line of EQ mounts, iOptron's GEM45-NUC Equatorial GoTo Mount strips out a lot of the bulk but retains the exceptional functionality to produce a highly portable and competent platform for astronomical observation and photography. This upgraded version of the mount has a redesigned interface panel that will accept an optional Intel NUC minicomputer that will eliminate cables that would normally run to your laptop and help to avoid connection errors to control interfaces.

Motorized Computer-Controlled EQ Mount    Set Up for Optional Intel NUC Computer    Very Good <±7 Arcsec Tracking Accuracy    Go2Nova 8407+ Computer Controller    Permanent Periodic Error Correction    Built-In iPolar Electronic Polar Finder    Precise 32-Channel GPS Unit    Universal Saddle for Vixen & Losmandy    45-Pound Payload Capacity    1.75" Stainless Steel Tripod with Tray

• Add computer control utilizing the optional iOptron-subsidized TheSky imaging software (available for purchase and download on the iOptron website) to improve tracking, control autoguiding, and integrate imaging systems to capture thousands of images for stacking in post
• Redesigned interface panel and cable management system to accept an optional Intel NUC minicomputer
• NUC mounts directly to bottom front of the dovetail saddle that keeps it safe and out of the way
• NUC measures only about 38mm thick, so it won't interfere with the movement of the mount and OTA

• German equatorial configuration provides smooth and accurate celestial tracking for observation or astrophotography
• 45-pound payload capacity, excluding the included counterweight
• 14-68° latitude; ±6° azimuth adjustment range
• Capable of tracking 0-20° below the horizon for hilltop/balcony use with automatic meridian flip
• Integrated iPolar electronic polar finder works globally; no Polaris (north) or Sigma Octantis (south) necessary; no need to rotate the mount during alignment
• 32-channel GPS receiver module for accurate day, date, time, and location information
• 6" dovetail saddle accepts both Losmandy and Vixen-style dovetail plates
• Counterweight bar with 11-pound counterweight enables proper balancing of an optical tube and accessories

• Accurate tracking with less than ±7 arcsec 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, and planets (and 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

• Innovative design provides the stability of a large 2" tripod, but with lighter 1.75" diameter legs
• Specially designed leg cuffs and sockets and locking levers add rigidity with less wobble when legs are fully extended
• Spreader locks legs into position to add stability and vibration suppression
• Minimum height: 30" (76.5 cm)
• Maximum height: 47" (116.8 cm)
• Weight: 15 pounds

• Safely carry, transport, and store mount head, hand controller, and counterweight shaft
• Aluminum case with reinforced corners
• Dual latches
• Molded hinged handle
• Foam-lined lid and custom-cut foam insert prevent items from shifting

Related Questions and Answers

Q: 1. Can i connect it with a laptop

A: Sorry you cannot.

Q: 2. Can you recommend a carrying case for this item?

A: This would be the best I could recommend. Lightware C6042 42" Cargo Case, Padded (Black) BH #LIC6042 • MFR #C6042 https://www.bhphotovideo.com/c/product/30895-REG/Lightware_C6042_C6042_42_Cargo_Case.html

Q: 3. Is the polar alignment scope illuminated?

A: Unfortunately it is not an illuminated polar scope.

Q: 4. Will it support a guide camera?

A: Yes it will, as long as your camera, lens and mount do not exceed the 22 lb weight limit.

Q: 5. Is there an adapter to plug this in at home instead of using my portable power?

A: You can use this Celestron AC adapter: https://bhpho.to/2PPft7a

Q: 6. Will this work with a SW 120ED Pro?

A: Yes

Q: 7. Does this come with the tripod?

A: In the Box: Sky-Watcher EQM-35 EQ GoTo Mount 2 x Sky-Watcher 7.5-Pound Counterweight for EQ5, EQ6, EQ6-R Counterweight Shaft SynScan Controller with Coiled Cable 2 x Motor Assemblies with Control Box and Cables Stainless Steel Tripod with Tray Limited 2-Year Warranty

Q: 8. What is the difference between EQM-35 Pro and this model?

A: Check this article https://www.skyatnightmagazine.com/reviews/mounts/sky-watcher-eqm-35-pro-go-to-mount/

Q: 9. Will any portable power bank work with this or does it have to be one of the specific ones shown in the power accessories?

A: There are many different power options for the Sky-Watcher EQM-35 EQ GoTo Mount besides the 2 we list. But I would recommend this 17amp Celestron Power Tank: https://bhpho.to/34VhKT9

Q: 10. Is there anything like an adapter that we would need to purchase to use a camera on this tracking mount?

A: You can use a Vixen style plate to mount a camera such as this Losmandy: https://bhpho.to/2k556gZ