Vixen ED103S Refractor Telescope & Sphinx SXP EQ Mount w/ Starbook 10

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Vixen ED103S Refractor Telescope & Sphinx SXP EQ Mount w/ Starbook 10
Item # VX-25091
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  • The Vixen ED103S Refractor with SXP EQ Mount pairs a short tube ED refractor with the Vixen Sphinx GoTo SXP mount.
  • Super low dispersion optical glass provides tack-sharp views with high contrast and excellent true color.
  • Responsibly produced glass does not use lead.
  • The Vixen SXP is an EQ mount capable of carrying up to 35 pounds. Large RA and DEC gears provide a smooth and accurate ride.
  • Starbook 10 controller features easy to use gaming style keys, full color screen and convenience features like night vision, brightness control and more.
  • 5 year warranty.


Vixen ED103S Refractor & Sphinx SXP Mount with Starbook 10

The Sphinx SXP is a smart equatorial mount with a load capacity of 35 pounds allowing it to easily carry the 115mm optical tube and any imaging gear you might choose with ease.  Large precision gears offer a smooth and accurate ride. Paired with the SXP is Vixen's ED103S refractor optical tube.  With a short tube design, the ED103 is very portable and has a focal ratio of f/7.7. 

About the ED103S Refractor Optical Tube

The ED103S refractor utilizes high definition lens elements which produces ultra sharp, bright views.  Super low dispersion glass maximizes light transmission optimizing contrast and virtually eliminating false color making this refractor a prime choice for astrophotographers.   Vixen's SD lenses are responsibly manufacturered, free of lead.  The Vixen ED103S is built on a short tube design making it very portable.

Includes 90mm tube rings.


Additional Features:

  • 150.4mm 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
  • 134x light gathering power
  • 60mm/ 50.8mm adapting thread
  • 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-25091
Manufacturer Vixen
Telescope Series Vixen ED
Optical Design Refractor - Achromatic with ED Glass
Mount Type Equatorial - GoTo
Warranty 5 Year Warranty
Telescope Aperture 103mm
Telescope Focal Length 795mm
Telescope Focal Ratio f/7.7
Limiting Stellar Magnitude 11.8
Optical Coatings Fully Multi-Coated
Dew Shield Included? Yes
Optical Tube Outer Diameter 115mm
Length of Optical Tube 585mm (31.8")
Optical Tube Weight 8.1 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.
Mount Weight 24.25 lbs.
Tripod Type Included Adjustable with Aluminum Legs
Total Telescope Weight 32.25 lbs.
Included Items

Included Items

  • ED103S Refractor Optical Tube
  • Tube Rings
  • Vixen Style Dovetail
  • SXP EQ Mount
  • Tripod
  • Starbook 10 Controller
  • (1) 4.2 lbs. Counterweight
  • (1) 8 lbs. Counterweight
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