Takahashi EM-11 Temma 3 Mount with Power and Controller

The Takahashi EM-11 Temma 3 equatorial mount is a German equatorial “GOTO” mount designed for loads up to 18.7 pounds. Designed for use in latitudes between 20 and 50 degrees, this superb mount has a look and feel that one expects from a Takahashi product. The mount features 144 tooth worm gears on both the right ascension and declination axis for precise slewing and tracking.

The EM-11 3 operates off 10.5 – 24 VDC and is capable of GOTO operation from a PC or Mac, with both medium and high-speed slew rates of up to 350X, and slower manual slew rates for R.A. and Dec. adjustments. Connection to the computer can be through a USB connection, an RS-232C connection, or using the built-in Wifi capability. The mount features a built-in, illuminated polar finder scope for accurate polar alignment, facilitating accurate tracking and GOTO’s.

To further enhance tracking capability, the mount is autoguider capable. The mount comes equipped with manual scales for both right ascension and declination, graduated at 10 minutes and 2 degrees, respectively.

EM-11 Temma 3 Mount Specifications

• Format: Built-in 2-axis motor, German equatorial mount
• Right ascension tremor:
• Warm wheel all-around fine movement (reduction ratio 144: 1)
• Electric drive by stepping motor (manual is not possible)
• High speed, medium speed, correction speed 3-speed switching
• Declination tremor:
• Warm wheel all-around fine movement (reduction ratio 144: 1)
• Electric drive by stepping motor (manual is not possible)
• High speed, medium speed, correction speed 3-speed switching
• Directional fine movement: Double screw method, movable range ± 10 °
• Tilt angle fine movement: Screw type, movable range Altitude 20 ° to 50 °
• Scale ring:
• RA: Minimum scale 10 minutes
• Declination: Minimum scale 2 °
• Drive system
• Double-axis drive, crystal oscillation control, rotation error ± 0.05% (against sidereal time)
• Drive frequency approx. 160 PPS
• Fastest:
• Right ascension direction: Approximately 350 times faster than sidereal time
• Declination direction: Approximately ± 5250 arcsec/sec
• Correction drive:
• Right ascension direction: from 0.01 to 1.99 times
• Declination direction: ± 0.1 ~ 14.85 arcsec / sec. Set by the operation of the hand controller
• PC interface:
• USB2.0 Type-B
• RS232C terminal (male) Connect to PC with interlink cable
• Automatic introduction:
• Possible by connecting a PC (software required)
• Wirelessly possible from a smartphone with SkySafari6 installed
• Compatible software for PC:
• Telescope Tracer 2000 (Takahashi)
• Stella Navigator Ver.11 (Astro Arts)
• Stella Shot 2 (Astro Arts)
• SUPER STAR V (SEeds Box)
• TheSkyX (Software Bisque)
• Wifi:
• Supports AP mode and STA mode
• Windows PC with Wi-Fi function is connected with the virtual COM port
• Safety features: Equipped with a hardware limit switch as standard, overhang limit function
• Standby function: Standby setting is possible at any position
• Power input jack
• Inner diameter φ2.1mm
• Outer diameter φ5.5mm With lock
• Power-supply voltage: DC 10.5V to 24V
• Current consumption: Up to 60W
• External dimensions / mass:
• Power interface: 175 x 91 x 43 mm 410 g
• Hand controller: 78 x 126 x 28 mm 170 g
• Loading mass: About 8.5kg
• mass: 7.3kg

• Takahashi EM-11 Temma 3 equatorial mount is a German equatorial “GOTO” mount designed for loads up to 18.7 pounds
• Designed for use in latitudes between 20 and 50 degrees
• Features 144 tooth worm gears on both the right ascension and declination axis for precise slewing and tracking
• Operates off 10.5 – 24 VDC and is capable of GOTO operation from a PC or Mac
• Features a built-in, illuminated polar finder scope for accurate polar alignment, facilitating accurate tracking and GOTO’s