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Vixen ED81S Refractor Telescope with SXW Sphinx Mount

Item# VIX062
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Description

The ED81S with the Sphinx mount combines both our highest quality short focal length telescope with our highest quality GOTO mount. You will not be disappointed with the operation or image quality from this package. As a first purchase you will easily begin observing hundreds of celestial objects. For the astro-photographer the ED81S and Sphinx mount makes a great combination. With the mount's ability to use an auto guider and connect with other software on your computer, you will be well on your way to taking some great images.

 

The SPHINX comes standard with built in motors and the world's first star chart go-to controller, STARBOOK, with a large full color LCD display. The Sphinx’s design is exceptional and the exterior styling is equally attractive.

 

Main features of the SPHINX equatorial mount: 180-tooth worm gears for fine full circle motion. 22lbs. recommended loading capacity for a wide range of optical tubes. Built in DC motors allow for improved motion of the polar axis rotation and reduce the need for heavy counterweights. Large color liquid crystal display. (4.7 inch, 320x420 pixels, STN, 4096 colors) High Speed Internal CPU (32 bit RISC processor, 75MHz, 8MB SDRAM, 4MB Flash ROM upgradeable) Zoom-In/Out buttons for the color star chart display also control the motor speed. As you zoom in closer to an object on the display, the motor speed becomes finer and as you zoom out, the motor speed increases to cover larger distances.

 

Features and menu options are displayed on the large color screen and are navigated with simple buttons on the controller. The STARBOOK is easy to use and makes the SPHINX available to a wide range of ages and experience levels. A large astronomical database with 22,725 celestial objects is stored. A LAN Port within the controller allows for computer control and network connectivity. The STARBOOK is also compatible with an auto guider (including SBIG ST). The auto-guider port comes standard on all controllers.

 

A retractable counterweight shaft enables easy storage and transportation. The mount is available on the SX-HAL130 heavy duty aluminum tripod. An optional illuminated polar axis scope can be easily added to the mount body. Package includes NLV25mm eyepiece, red dot finder, flip mirror and counterweights.

 

ED81S Specifications

  • Aperture 81mm
  • Focal length 625mm (f7.7)
  • Resolving power/ limiting magnitude:1.43 arc sec. 11.3
  • Light gathering power: 134x
  • Tube Dia./length/weight: (OD) 90mm x (L) 600mm; 2.3kg
  • Finderscope: Dot Finder
  • Threads/Visual Back size: 60mm, 42mm threaded for T Ring/50.8mm push fit
  • Eyepiece: LV20mm (31x), LV5mm (125x)
  • Mount: Sphinx SXW Equatorial
  • Tripod: SX-HAL130 Aluminum Tripod, adjustable from 70cm to 130cm in length
  • Accessories: Flip Mirror, Counterweight 1.9kg x 1
  • Photography: Prime Focus and Eyepiece Projection
  • Total Weight: 16.2kg (36 lbs.)

 

Sphinx SX Mount Features:

  • The mount uses a 180-tooth worm gear for fine full circle motion.
  • Built in motors allow for improved motion of the polar axis rotation and reduces the need for heavy counterweights. The counterweight shaft is stored inside the mount for convenience.
  • An optional internally illuminated polar axis scope can be easily threaded into the mount body.
  • The SX mount easily handles Vixen’s 8 inch aperture optical tubes and utilizes the standard Vixen dovetail bracket.
  • The recommended loading capacity of the SPHINX mount is 22 lbs.
  • The weight of the SPHINX mount head (without counterweight) is 15lbs.
  • A Half Pillar accessory option adds height adjustment and viewing location versatility.

 
Star Book Hand Controller Features:

  • Large color liquid crystal display. (4.7 inch, 320x420 pixels, STN, 4096 colors)
  • High Speed Internal CPU ( 32 bit RISC processor, 75MHz, 8MB SDRAM, 4MB Flash ROM upgradeable)
  • Zoom-In/Out buttons for the color star chart display also control the motor speed
  • Features and menu options are displayed on the large color screen
  • The STAR BOOK is amazingly easy to use & makes the SPHINX available to a wide range of ages and experience levels
  • A large astronomical database with 22,725 celestial objects is stored
  • A LAN Port within the controller allows for computer control and network connectivity
  • The STAR BOOK controller can be used as a stand alone star atlas from anywhere, anytime

 

The Vixen STARBOOK Controller - A hand-held personal planetarium

 

Vixen is known for its amazing quality and high-end performance.  But what Vixen has done with their hand-controller simply makes everyone look inadequate.  If you have never had the pleasure of seeing the STARBOOK controller in action, get ready for something pretty exciting.  There is simply nothing else like it.

 

Vixen SX Sphinx, Vixen SXD Sphinx and Vixen ATLUX mounts include the powerful STARBOOK hand controller.  At first glance you would think it’s a video game device.  STARBOOK is an actual map of the night sky on a LCD screen.  The Vixen STARBOOK controller features a large 4.7" Color LCD display and is the command center of the Vixen mount.  It features simple navigation buttons on each side of the body and are simple to navigate in the dark.  Its dimensions are approximately 7.5 x 5.5 x 1 inches and weighs approximately 14 oz.  At the bottom of the controller you will find a port for connecting STARBOOK to the Equatorial Mount, a LAN Port for communication with a PC and for firmware updates, and an Autoguider Port.

 

Setting up the mount with the STARBOOK controller is simple.  A cable connects the mount to STARBOOK and when the mount is powered on, you are greeted with the Vixen logo on the STARBOOK screen.  Simply enter your observing location (longitude, latitude, local date and time) then store the settings for current and future use.  The Mount then needs to be put into the "home" position.  Simply point the mount north and the telescope tube west.  There are also alignment marks on the mounts body to assist you.  From the home position you are now ready to align the telescope with the night sky.

 

Chart Mode and Scope Mode

 

Before we begin aligning the mount, its important to know that the STARBOOK controller has two "modes".  CHART Mode (the screen menu will change to Blue in color when in CHART MODE) or SCOPE MODE (the screen will change to Red in color with in SCOPE MODE).  In both modes the STARBOOK will display a map of the night sky with objects named.  A cross hair will show its current pointing location.  The difference between CHART MODE and SCOPE MODE is the movement of the cross-hair.  In CHART MODE, when moving the directional buttons, you will NOT actually move the telescope you will simply move the cross-hair of the chart on the map to a new location.  But when in SCOPE MODE, if you move the cross-hair you actually move the telescope mount to that location. 

 

Alignment of the Telescope

 

Now that the telescope is in the HOME position and the basic time/location information is stored into STARBOOK, you are ready to align the telescope with the night sky.  In CHART MODE, simply locate a known star on the map.  You could select Vega for example.  Align the cross hairs to Vega on the map and select "GOTO".  STARBOOK will now automatically switch to SCOPE MODE and begin moving the telescope to where it thinks Vega is.   Simply center Vega in your finderscope, then center in your eyepiece and press "ALIGN". Repeat this process for 2 or more stars.  Now that your mount is aligned with the night sky you can use STARBOOK to navigate through the night sky.

 

The Vixen STARBOOK controller can also be used without the mount.  For educational learning of the night sky from indoors or on cloudy evenings, STARBOOK can be powered on without the mount.  You can explore the night sky in CHART MODE and begin planning your next observing session.

Supplier Sku:
55032

Dimensions & Specifications

Recommended Usage

Astrophotography , Viewing the Planets

Features

Equatorial Mount , GoTo

Brand

Vixen

Finderscope

Red Dot Finder

Good for Astrophotography

Yes

Telescopes Series

Vixen ED81S Refractor Telescopes

Optical Design

Refractor

Aperture

81mm

Focal Length

625mm

Focal Ratio

f/7.7

Mount Design

Sphinx Mount

Objective Lens Size Code

81

User Level

For the Enthusiast , For the Expert

Component

1.43 Arc Seconds Resolving Power

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