Orders placed after 4PM on weekdays will not ship until the next business day. Orders placed after 11AM Fridays will not ship until the following Monday.
Faster shipping methods may be available; just upgrade during checkout.
*Some exclusions apply.
Enjoy Extended Returns thru Feb 1, 2017!
You have until Feb 1, 2017 to return or exchange items purchased between Nov 1, 2016 and Jan 1, 2017. All other standard return policy conditions apply.
Enter new zip code to refresh estimated delivery time.
Made for long observation sessions, Vixen's Sphinx SX2 Equatorial Mount features precision motors and gears for accurate long-duration tracking. Dual stepper motors provide smooth and virtually vibration-free tracking that run at up to 250 pps. Its full-circle brass wheel gear allows the mount to track over extremely long periods with little error. The RA and DEC motors are situated inside the mount to reduce interference, and act as counterbalance for smaller scopes, eliminating the need for the counterweights and shaft. When not in use, the counterweight shaft retracts into the mount and out of the way.
The Sphinx comes with the Star Book Ten (SB10) computerized hand controller that is loaded with a database of 272,342 celestial objects such as the Moon, Sun, and planets, plus astronomical catalogs including SAO, NGC, and Messier. The SB10 has a 5" 800x400 resolution LED backlit TFT LCD screen that displays star charts, maps, as well as menu options. To aid set-up, there is a built-in 6x20 polar alignment scope that is set inside the mount. It has an 8° wide angle field of view and an illuminated reticle. The Polaris guide scale, for use in the Northern hemisphere, is accurate through the year 2025. An Octant 4-star pattern is also set on the reticle for use in the Southern hemisphere.
The Sphinx is offered here without an optical tube assembly, tripod, or pier.
Motorized equatorial mount with hand controller
27 lb payload capacity, excluding counterweights
Precise azimuth adjustment indicators
Integrated counterweight shaft retracts into mount when not in use
Includes one 4.2 lb counterweight
Vixen-style dovetail saddle
Gears and Motors
Two stepping (pulse) motors at 250 pulses per second
180-tooth full circle micro-movement wheel gear
40mm aluminum-alloy die-cast Right Ascension axis
35mm aluminum-alloy Declination axis
±7° azimuth adjustment, twin tangent screws/knobs with about 1.2°/rotation
0-70° altitude adjustment, 3-altitude zone settings, 2° increment altitude scale, twin T-bar handles with 0.8°/rotation
Star Book Ten
Powered by mount through connector port, button-battery included to keep internal clock running
5" TFT LCD display with LED backlight
800x480 WVGA resolution
Red backlit keypad
Independent screen and keypad dimming control
ST-4 compatible integrated autoguider port
"GOTO" slewing with up to 1000x sidereal rate
272,342 celestial object database: SAO: 258997, NGC objects: 7840, IC objects: 5386, Messier objects: 109, 7 Planets, 1 quasi-planet, Moon, and Sun
Programmable user-defined objects
Automatic and manual GoTo Slewing
Sidereal tracking with different tracking speeds for the Sun, the Moon, planets, comets, and artificial satellites including the International Space Station
Periodic error correction (PEC) removes inaccuracies inherent in gears and allows for more accurate tracking, especially for long-exposure astrophotography
Adjustable screen brightness
Software updates using LAN connection
Compatible with Windows SP, Vista, 7, 8, & 8 Pro
Not compatible with Mac, Linux, and Unix operating systems
6.7x6.1x1.2" weighing 13.4 oz
In the Box
Vixen Optics Sphinx SX2 Equatorial Mount with Star Book Ten
Star Book Ten Hand Controller
Star Book Cable
4.2 lb Counterweight
Limited 5-Year Warranty
Table of Contents
27 lb (12.2 kg)
RA: 180-tooth full circle micro-movement gear wheel Dec: 180-tooth full circle micro-movement gear wheel
Right Ascension Axis
40 mm diameter, die-cast aluminum-alloy
35 mm diameter, aluminum-alloy
2 x Stepping (pulse) motors with 250 PPS
Altitude / Azimuth Adjustment
Alt: 0 to 70° Az: ±7°
Polar Axis Scope
1 x 4.2 lb (1.9 kg)
13.5 x 14.2 x 5.0" (34.3 x 36.0 x 12.8 cm)
15.5 lb (7.0 kg), excluding counterweights
Vixen Optics Sphinx SX2 Equatorial Mount with Star Book Ten Review