YOU ARE HERE HOME / PRODUCTS /EXPLORE SCIENTIFIC / AR 102
AR 102 f6.5 Air-Spaced Doublet AR Series
D=102 / F=663mm Refractor OTA . . . . Rs. 39,000
   

The Explore Scientific AR Series telescopes are classic air-spaced, crown-and-flint, doublet achromatic f/6.5 refractors with a superior-class optical figure. Whether you choose the AR102 (4"), AR127 (5") or AR152 (6") model, you will be impressed by the stunning images revealed to you at the eyepiece, and all at a small fraction of the price you'd pay for a comparably sized apochromat refractor. Finally one can own a diffraction-limited high quality refractor for a relatively modest investment.

Designed to handle the rigors of public star parties and educational outreach, the Explore Scientific AR Series telescopes come with heavy-duty, high quality components, including a 2" dual-speed Crayford-style focuser, a one-piece 2" diagonal with 99% dielectric coatings, an 8 X 50 non-illuminated straight -thru finderscope and quick release bracket, and a cradle ring assembly with Vixen-style dovetail mount. Just add a few eyepieces and the alt-azimuth or equatorial mount of your choice and you'll be ready to discover the Universe!

 

 
 
It's All About the Optics!
The optics in their collimatable lens cell are fully multi-coated to eliminate light scatter and maintain image contrast. We precision collimate every Explore Scientific telescope at our factory to give optimum performance. Although you may never need to adjust optical alignment, the AR Series allows for collimating the lens set should the telescope ever require it.
 
Deluxe Two-Speed Focuser
The Explore Scientific Air-Spaced DoubletAR Series telescopes include a precision 2-inch two-speed as standard equipment. The eyepiece holder uses a compression ring to prevent the eyepiece or camera barrel from scoring.

On those prestine nights of steady seeing, Saturn's Rings can forever affect the hearts and minds of almost anyone who lays eyes on them. It's nights like these that astronomers like to set up their refractors and push the magnification to the limits, not only to see the magnificence of the planet at greater scale but to really test the optical and mechanical quality of the telescope.

Many telescopes are only supplied with a standard single-speed focuser, you will find that a tiny nudge will throw out focus and turn your night into one of frustration.

So we included as standard equipment, on all Explore Scientific ARSeries, a two-speed Crayford-style precision focuser with tension adjustment and lock to obtain and hold perfect focus. We think you'll agree that such precision is worth it.
 
Universal Mounting Plate
The Universal Adjustable Mounting Plate of the AR 102 fits on many popular equatorial and Altaz mounts, including mounts supplied by Explore Scientific, Celestron, Vixen, and others.

Instead of using a cast metal part, Explore Scientific's Universal Mounting Plate is made from extruded aluminum for added strength, it is afterall what secures your telescope to the mount. We also include adjustment screws and locking bolts to allow adjustments to position the angle of the telescope when it is placed on its mount, an important feature when using an equatorial mount.
 
Viewing Comfort and the Preservation of Precious Light
The Two-Inch Dielectric Diagonal includes a 1.25" eyepiece holder adapter and dust covers to protect the mirror.

The purpose of a diagonal is to securely hold your eyepiece and to give you a comfortable viewing angle.

Provided as standard equipment, Explore Scientific's Two Inch Dielectric Diagonal incorporates a light-weight, one-piece diagonal body that securely cradles the precision polished diagonal flat mirror, insuring precision alignment. Ultra-high reflective coatings (99% reflective) composed of multiple thin layers of dielectric material delivers maximum light output.

Both 2" and 1.25" eyepiece holders use compression rings instead of a simple set-screw to more securely hold your valued eyepiece (or imaging device) and to minimize scoring of eyepiece barrels. You can thread standard 48mm filters into the barrel.

The purpose of a diagonal is to securely hold your eyepiece and to give you a comfortable viewing angle.

Provided as standard equipment, Explore Scientific's Two Inch Diagonal incorporates a light-weight, one-piece diagonal body that securely cradles the precision polished diagonal flat mirror, insuring precision alignment.

 
8x50 Finder Scope
The Explore Scientific 8x50 Finder Scope provides a true field of view of 6°. Its coated optics provide a bright high-resolution image so that many faint stars and nebulosity can be detected for precise aiming.

The front objective can be custom focused to provide a sharp image every time.
 
PRODUCT SPECIFICATION
Part Number:
DAR102065-0Standard Hardware:
  • Removable Dew Shield
  • Front and Rear Dust Covers
  • Cradle Rings with Handle and Univsersal Saddle Plate
  • Two-Speed Focuser 2.0" I.D.
  • 8x50 Finder Scope with Six Point Adjustable Bracket
  • Dielectric-Coated 99% Reflective 2.0" Mirror Diagonal with 1.25 " Adapter
Recommended Optional Accessories:
  • TwiLight II Mount
  • 68° Series Eyepieces
  • 82° Series Eyepieces
  • 100° Series Eyepieces
  • 120° Series Eyepiece

Shipping Box Dimensions:
40 x 10 x 10 inches; 101.6 x 25.4 x 25.4 cm

Shipping Weight:
17 lbs; 7.7 kg

*Prices and Specifications Subject to Change Without Notice

Optical Design: Air-Spaced Doublet Achromatic Refractor
Clear Aperture: 102mm
Focal Length: 663mm
Focal Ratio: f/6.5
Resolving Power: 1.14 arc seconds
Coatings: Fully Multi-Coated
Limiting Stellar Magnitude: 12.5
Focuser: Two-Speed Crayford-Style, w/ Adjustable Tension and Lock
Finder Scope: 8x50 Straight; Adjustable Objective Focus; Dual-Ring, Six-Point, Bracket w/Quick Release Shoe
Cradle/Saddle Plate: Dual Ring Style - Fits Explore Scientific Mounts; and Other Third Party Mounts that Accept Vixen-Type Rail
Tube Diameter: 3.96" - 100.7mm
Dew Shield Diameter: 7.5" - 100.7mm
Tube Length (eyepiece holder to end of dew shield: 25.5" - 648mm
Tube Construction: Aluminum; Stainless Steel
Optical Tube Assembly Weight (with all standard accessories): 11.3 lbs - 4.67 kg

 

 

Comets
COMET VIEWING 
√ √ √ √ √
CCD Cameras
ASTROPHOTOGRAPHY
√ √ √ √
Galaxies
DEEP SKY VIEWING
√ √ √ √
Planets
PLANET VIEWING
√ √ √ √
Double Stars
DOUBLE STAR VIEWING
√ √ √ √
Birds
TERRESTRIAL
√ √ √ √ √
Portability
PORTABILITY
√ √ √ √ √
Degree of Difficulty
SKILL LEVEL 
beg-inter

 

 

 
Copyright © 2008 - Tejraj & Co. All Rights Reserved.
Website Powered By : Pinnacle Pixel
Home Page Send us an e-mail NOW!! Site Map