Vixen AX103S Refractor Telescope & Sphinx SXP EQ Mount w/ Starbook 10

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Vixen AX103S Refractor Telescope & Sphinx SXP EQ Mount w/ Starbook 10
Item # VX-25093
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Waiting List

  • The Vixen AX103S is a precision APO quad refractor telescope.
  • 103mm aperture with a focal ratio of f/8.
  • Super low dispersion optical glass exhibits NO false color.
  • Sphinx SXD EQ mount offers a strong platform for the VC200L and your choice of imaging accessories.
  • Large precision gears provide a smooth ride with minimal backlash.
  • Starbook 10 controller features a 5 inch full-color screen, gaming-style control and a wide variety of tracking modes.
  • 5 year warranty!


Vixen AX103S Refractor & Sphinx SXP Mount with Starbook 10

Vixen's SXP is the latest iterration in a long line precision Sphinx equatorial mounts.   Offering a smoother and even more accurate design than it's predecesors, the SXP has the strength to comfortably carry the VC200L optical tube and the imaging gear of your choice.  Paired with this power-house mount is Vixen's 103mm AX refractor optical tube.  Featuring fully multi-coated precision extra-low dispersion optics, the AX103S is an ideal imaging lens.

About the AX103S Refractor Optical Tube

The Vixen AX103S refractor tube has a focal length of 825mm creating a focal ratio of f/8.  This longer focal length creates an image with better color and finer detail than telescopes with similar aperture but shorter focal lengths.   This ED apochromatic quad element refractor optical tube utilizes a triplet primary element design which produces crystal clear images with no false color with maximum light tranmission.

A dual speed focuser is included for coarse and fine focus adjustment. 

Additional Features:

  • 150.0mm back focus from rear edge of focuser body
  • 63.5mm back focus with reducer from rear edge of focuser body
  • Resolving power of 1.13 arc seconds
  • 11.8 limiting magnitude
  • 217x light gathering power
  • 60mm/ 50.8mm adapting thread
  • Built in dew shield with diameter of 140mm
  • Compression ring visual back
  • Includes tube ring and Vixen-style dovetail

About the Sphinx SXP EQ Mount

Decades of EQ mount design experience have gone in to the creation of the SXP mount.  A unique offset design lets the body of the mount head act as part of the counterweight system, reducing the need for as many additional counterweights when compared to traditional EQ mounts.  Large, 180 teeth gears enable fluid precision movement with minimal backlash. 

About the Starbook 10 Controller

Included with the SXP EQ mount is Vixen's innovative Starbook 10 controller.   Featuring a gorgous full color, large LCD screen, the Starbook 10 contains an extensive catalog of over 270,000 objects so no matter what your location or desired target you're sure to find it.  Other convenience features include a night-vision mode for the screen, brightness control, glowing control buttons, hibernate control, and bilingual options.   Adding to the mount's gear accuracy, the Starbook 10 controller also provies backlash compensation, automated Go-To functions, and lunar, sideral, solar, artificial sattelite and comet tracking modes, virtual and permanent PEC. 

The Screen:

  • Full-color, 5" HD quality LCD screen. 
  • Adjustable brightness.
  • Red nightvision mode available for both screen and controller buttons.

The "Brain": 

  • Database of 272,342 objects.
  • User defined objects allowed.
  • Comet tracking mode.
  • Sattelite tracking mode.
  • Backlash compensation.
  • Virtual and permanent PEC.  Virtual PEC is automatically loaded on the mount's programing and will compensate for typical errors.  Permanent PEC is a user determined correction which can be saved to controller, further refining the SXD's tracking accuracy.
  • Hibernate mode - adjustable.  Save your battery life! "Wake up" your mount by simply switching over the power switch.  No need to loosen clamp levers on the RA and DEC axis. 

Controller Hardware:

  • LAN PC connection.
  • Autoguider port built in.
  • Expansion slot available with purchase of separately available Advance Unit.
Additional Information

Additional Information

SKU VX-25093
Manufacturer Vixen
Telescope Series Vixen AX
Optical Design Refractor - Apochromatic
Mount Type Equatorial - GoTo
Warranty 5 Year Warranty
Telescope Aperture 103mm
Telescope Focal Length 825mm
Telescope Focal Ratio f/8
Limiting Stellar Magnitude 11.8
Optical Coatings Fully Multi-Coated
Dew Shield Included? Yes
Optical Tube Outer Diameter 115mm
Length of Optical Tube 690mm
Optical Tube Weight 10 lbs.
Tube Color or Finish Gloss White
Focuser Size 2"
Focuser Style Rack & Pinion
Manual or Electronic Focusing? Manual
Focusing Speeds Two-Speed
Eyepiece(s) Included None
Finder Included None
Objects in Database 272,342
Power Adapter Included AC Wall Adapter
Counterweights Included (1) 4.2 lbs. & (1) 8 lbs.
Hand Controller Included? Yes
Mount Weight 24.25 lbs.
Tripod Type Included Adjustable with Aluminum Legs
Total Telescope Weight 34.25 lbs.
Included Items

Included Items

  • AX103S Optical Tube
  • Dual Speed Focuser
  • Tube Ring
  • Vixen-Style Dovetail Plate
  • SXP EQ Mount
  • Tripod
  • Starbook 10 Controller
  • (1) 4.2 lbs. Counterweight
  • (1) 8 lbs. Counterweight
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