The Nova 500 mount direct drive Gimbal is a high-performance, precision-engineered observational platform designed for the most demanding applications in astronomy, space domain awareness, free-space optical communication, and advanced imaging.
Built with zero-backlash direct-drive motors, ultra-high-resolution absolute encoders, and a robust 2x 250 kg payload capacity, the Nova 500 delivers exceptionally smooth, fast, and accurate motion. It achieves slewing speeds of up to 100° per second while maintaining sub-arcsecond tracking precision — performance that eliminates periodic error and delivers outstanding results even during long-exposure imaging or rapid target acquisition.
Mount specifications
Payload weight
Up to 250 kg per side
RA-DEC axis diameter
AZ Ø250 mm hollow shafts
Mount Weight
350 kg
Mount type
Altaz Gimbal dual OTA
Size
Height 1040 mm Width 700 mm Deep 500 mm
Operating voltage
220V / 110V AC up to 4KW per axis
Motors operating voltage
300 V DC
Motors
One high torque frame less brushless motor per axis 420 N.m AZ axis (water cooled option) 145 N.m ELV axis
Encoders
134 millions steps per rotation (27 bits), Absolute encoders 0.0096 arsec per encoder step
Absolute positionning on start up
Yes
Axis brake
On both axis, magnetic brakes when power drops
Moving speed
Up to 100°/sec
Pointing accuracy (with Pointing model)
down to 2 arcsec rms
Tracking accuracy
Better than 0.25 arcsec in 10 min
Acceleration
Up to 100°/s² depending upon installed payload-induced moment of inertia
Real-world performance One customer successfully operates this mount with a 500 mm f/1.6 telescope for SSA applications. The system rapidly scans the sky to detect and track satellites, demonstrating the mount’s exceptional speed and precision in operational environments. Multiple units have been installed at the same observatory, significantly improving data collection efficiency and delivering reliable results to the end user.
Alcor System offers full customization options based on this platform, including weatherproofing, water-cooled motors for maximum torque (420 Nm on AZ), and tailored optical tube assemblies. Discover the precision, power, and proven reliability of next-generation direct-drive gimbal technology..
Whether configured in Alt/Az, Alt/Alt, or Equatorial mode, the Nova 500 offers the versatility, ruggedness, and reliability required for both professional observatories and field-deployed systems. With optional weatherization, through-the-mount cabling, and advanced mount modeling software, it provides a future-proof foundation for cutting-edge research and operational missions. Discover the precision and power of next-generation gimbal technology.
Alcor System can provide custom made solutions based on this Gimbal mount.
NOVA 500 mount. The cable management allows cable to run inside the mount. Optional rotating electric collector can be installed to minimize cable twisting
NOVA 500 mount. The cable management allows them to run inside the mount. Optional rotating electric collector can be installed to minimize cable twisting.
Four units have been installed at the same observatory to improve data collection efficiency
