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Explore Scientific AR127 Air-Spaced Doublet Refractor w/ Twilight I Mount

SKU DAR127065-MAZ-01
Sold out
Original price $779.99 - Original price $779.99
Original price
$779.99 - $779.99
Current price $779.99
Out of stock

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Explore Scientific AR127mm f/6.5 Air-Spaced Doublet Refractor w/ Twilight I Mount

Discover the Explore Scientific AR127 Air-Spaced Doublet Refractor with the Twilight I Mount offers a classic air-spaced, crown-and-flint, doublet achromatic f/6.5 refractor with a superior-class optical figure.

These telescopes deliver stunning images at the eyepiece, providing exceptional value compared to similarly sized apochromat refractors.

Designed for durability during public star parties and educational outreach, the AR Series telescopes feature heavy-duty 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-through finderscope with a quick-release bracket, and a cradle ring assembly with a Vixen-style dovetail mount.

Owners can request interferometric data for their achromatic refractor after 120 days of ownership through Customer Service.

The package includes the Twilight I Mount, adding versatility to your observational setup. For additional details on the Twilight I Mount, refer to the specific information provided.

Simply supplement your setup with a few eyepieces and choose between an alt-azimuth or equatorial mount of your preference to embark on a journey of discovering the Universe.



  • 127mm Objective Lens: Featuring an impressive 127mm (5 inches) objective lens, this telescope excels in light-gathering prowess, capturing vivid and intricate celestial views with exceptional clarity.
  • 250x Highest Useful Magnification: With a maximum useful magnification of 250x, the telescope offers potent zoom capabilities, revealing intricate details across a diverse range of celestial subjects, from planets and lunar features to star clusters and deep-sky objects.
  • 826mm Focal Length: Striking a harmonious balance between magnification and field of view, the telescope's 826mm focal length enables detailed planetary and lunar observations while retaining the capacity to encompass expansive nebulae and star clusters.
  • 99% Reflective 2-inch Diagonal: Equipped with a high-quality 2-inch diagonal mirror boasting 99% dielectric coatings, this telescope facilitates convenient astronomical observations by diverting light at a 90-degree angle. It includes a 1.25-inch eyepiece adapter for versatile eyepiece compatibility.
  • 2" Dual-Speed Crayford-Style Focuser: Featuring a precise 2-inch dual-speed Crayford-style focuser, the telescope ensures smooth and accurate adjustments during the focusing process, accommodating both 2-inch and 1.25-inch eyepieces for versatile accessory choices.
  • Air-Spaced Doublet Optics: Mitigating chromatic aberration through air-spaced doublet optics, this telescope ensures sharp, color-accurate, and high-contrast views of celestial objects.
  • 8x50 Non-Illuminated Straight-Through Finder: Simplifying the pre-observation process with its straightforward design, the non-illuminated 8x50 finder scope aids in locating and aligning celestial objects.
  • Fully Multi-Coated Optics: With fully multi-coated optics enhancing light transmission while minimizing glare and internal reflections, the telescope delivers sharp, contrast-rich views with minimal optical aberrations.
  • Vixen-Style Dovetail Plate: Featuring a Vixen-style dovetail plate, the telescope ensures secure and hassle-free mounting on compatible telescope mounts, providing stability throughout observations.
  • Versatile Mount Compatibility: Compatible with various telescope mounts, whether alt-azimuth or equatorial, the Explore Scientific AR127mm refractor telescope offers adaptability to align with your preferred observing style and mount preferences.
  • Ideal for Astrophotography: Tailored for astrophotography, this refractor telescope leverages air-spaced doublet optics and fully multi-coated lens elements to capture sharp, high-contrast images. It proves invaluable for creating stunning photographs of the celestial wonders adorning the night sky.


What's Included:

✓ Explore Scientific AR127 Air-Spaced Doublet Refractor

✓ 8x50 straight through finder

✓ 99% reflective 2-inch diagonal

✓ Cradle Ring with Vixen-Style Dovetail Mount

✓ 2" Dual-Speed Crayford-Style Focuser

✓ Limited 1 year warranty



      Item Name AR127 Air-Spaced Doublet Refractor
      Item Number DAR127065–01
      Focal Length 826mm
      Focal Ratio f/6.5
      Limiting Magnitude 13
      Resolution .9 arcsec
      Tube Length w/ Dew Shield 34"; 863mm
      Diameter 130mm
      Weight 15.6lb; 7.1kg
      Dovetail Vixen


      Item Name Twilight I Mount
      Item Number MAZ01–00
      Tripod fully collapsed no mount head 29.5"
      Tripod fully collapsed with head 42"
      Tripod open, retracted legs no mount head 25"
      Tripod open, retracted legs with the mount head 38.5" at highest point, 36" to the center of the mounting bracket
      Tripod open, legs fully extended no mount head 42"
      Tripod open, legs fully extended with the mount head 55.5" at highest point, 53" to the center of the mounting bracket
      Mount head dimensions 14" x 7" x 4"
      Foot print 42"
      Weight tripod base 11lb; 5.0kg
      Weight mount head 6.6lb; 3.0kg
      Total weight 16.7lb; 7.6kg

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