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Designed with similar specifications as their beefier SXP mount, this lighter-duty Sphinx SXD2 Go-To EQ Mount from Vixen Optics gets a performance boost by adding the STAR BOOK TEN computer control system and PF-L polar axis alignment scope. Dual-axis stepper motors, 180-tooth brass worm wheels, and ball bearings provide smooth and precise tracking abilities with little to no vibrations. The mount has a maximum payload capacity of 50 pounds for observation purposes, but if this rig will be used for astrophotography or imaging, Vixen recommends the max payload be kept to 33 pounds, including the counterweights. This iteration of the Sphinx is offered here without a tripod for users that already have a reliable and compatible support system.
The included polar axis scope has an illuminated star-pattern reticle that requires the user to simply superimpose the star pattern over the three prominent stars over the North Pole for proper polar alignment. With this simple alignment done, the STAR BOOK TEN controller can be used to provide full Go-To capabilities with a color display and intuitive menu system. Outfitted with an internal and updateable database of over 272,000 objects, the SB10 offers phased star charts, customized guided tours of the night sky, and the ability to program out tracking errors (PPEC and VPEC) and backlash to improve the precision of the tracking system during long-duration observation sessions.
Motorized German equatorial design
Vixen-style dovetail saddle accepts any compatible OTA
Azimuth adjustment: ±7°, fine adjustment; Twin tangent knobs, 1.2° per rotation
Altitude adjustment: 0 to 70°; 3-altitude zone settings for easier adjustment; 2° increment scale; Twin T-bar adjustment handles, 0.8° per rotation
Payload capacity: 50 pounds recommended for observation use; 33 pounds recommended for astrophotography/imaging; Capacity includes counterweights
20mm retractable counterweight bar
Counterweights: 4.2 pound, and 8 pound
Runs on 12 VDC power supply
Gears and Motors
Dual stepping (pulse) motors, 250PPS (pulse per second)
9mm diameter, brass worm gears
Right Ascension and Declination gears: 180-tooth 360° micro-movement gear; 72mm diameter; Brass wheel
Right Ascension axis: 35mm diameter; Carbon steel
Declination axis: 40mm diameter; Carbon steel
Nine ball bearings reduce vibrations and allow for smooth tracking
STAR BOOK TEN Computer Controller
5" TFT full color display
Phased star charts display only relevant info for what is visible overhead
Automatic GoTo Slewing
Sidereal tracking and different tracking rates for the Sun, Moon, planets, comets, and artificial satellites
Proprietary Vixen Periodic Error Protection (VPEC): Intrinsic errors are measured and entered into memory at the factory for precision tracking out of the box; Use with PPEC to boost tracking performance
Permanent Periodic Error Correction (PPEC) enables you to train out tracking errors for more accurate tracking over extended periods of time, such as long-exposure astrophotography
Backlash compensation allows you to train out the play inherent in all gears for more precise tracking
LAN port to update database via Internet
Powered by mount via controller cable
NC Objects: 784
IC Objects: 5386
Moon and Sun
Polarie PF-L Polar Axis Scope
6x power magnifies view while maintaining a wide angle of view
20mm objective lens diameter
Ease of use: In the Northern hemisphere, align three bright stars with the corresponding pattern on the scope's illuminated reticle
No need to set hour angle
Red illumination allows reticle to be easily seen without affecting night adjusted vision
Eight adjustable intensity levels allow precise brightness control
Automatic "off" function after two minutes to conserves battery power
Companion app for Android and iOS smartphones
In the Box
Vixen Optics Sphinx SXD2 Go-To EQ Mount with Polar Scope and SB10