SKU: 50484058633

Explore Scientific AR127 127mm f/6.5 Doublet Refractor Telescope

Sale price$202.50 Regular price$225.00
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Description

Explore Scientific AR127 127mm f/6.5 Doublet Refractor TelescopeThe jump from 4 inches to 5 inches of aperture is where deep sky observing starts to get serious spiral arms in M51, the dark lane in M82, and globular clusters that resolve into individual stars instead of cotton balls. The Explore Scientific AR127 steps up to a 5 inch aperture with 55% more light gathering than the AR102, with an 8x50 finderscope, 2" dielectric diagonal, and dual speed Crayford focuser included at a price that makes serious aperture

The jump from 4 inches to 5 inches of aperture is where deep-sky observing starts to get serious — spiral arms in M51, the dark lane in M82, and globular clusters that resolve into individual stars instead of cotton balls. The Explore Scientific AR127 steps up to a 5-inch aperture with 55% more light-gathering than the AR102, with an 8x50 finderscope, 2" dielectric diagonal, and dual-speed Crayford focuser included at a price that makes serious aperture accessible.


Key Features
  • 127mm (5") Air-Spaced Crown-and-Flint Doublet – Classic achromatic design with fully multi-coated optics delivers bright, high-contrast views with 0.91 arcsecond resolution and a 13.0 limiting magnitude — 55% more light than a 102mm refractor
  • Fast f/6.5 Focal Ratio – 826mm focal length provides wide-field deep-sky views of galaxies, nebulae, and star clusters while still resolving lunar craters and planetary detail at moderate magnifications
  • 2" Dual-Speed Crayford-Style Focuser – Zero-image-shift design with 10:1 fine focus ratio and adjustable tension for smooth, precise focusing at any magnification
  • 8x50 Straight-Through Finderscope Included – High-quality optical finder with quick-release bracket for fast, accurate star-hopping — no additional purchase needed
  • 99% Reflective 2" Dielectric Diagonal Included – Premium diagonal with brass compression ring maximizes light throughput and contrast right out of the box
  • Durable, Outreach-Ready Construction – Solid tube, reliable optical alignment, and a built-in carry handle make this scope a natural choice for astronomy clubs, educators, and public star parties
  • Cradle Rings with Carry Handle – Felt-lined rings provide secure mounting and easy balance adjustments, with a built-in handle for safe transport
  • Vixen-Style Dovetail – Compatible with most alt-azimuth and equatorial mounts for flexible setup options

Ideal For
  • Visual observers who want more aperture without paying for an APO — the 127mm doublet gathers 55% more light than a 102mm refractor and resolves to 0.91 arcseconds, revealing structure in galaxies, nebulae, and star clusters that smaller scopes can't show — all for a fraction of an ED refractor's price
  • Star party and outreach organizers who need an impressive, reliable scope that draws crowds — the 5-inch aperture delivers bright views that make the Moon and deep-sky objects pop for first-time observers, and the included finderscope, diagonal, and Crayford focuser mean you're set up in minutes
  • Deep-sky enthusiasts who enjoy sweeping wide fields for galaxies, nebulae, and star clusters — the fast f/6.5 focal ratio and 13.0 limiting magnitude bring fainter objects within reach under dark skies
  • Observers stepping up from a 70–102mm refractor who want a meaningful jump in brightness, resolution, and reach — the AR127 is the sweet spot in the AR Series, offering noticeably more capability than the AR102 while staying portable enough for regular use at 15.6 lbs

Accessories & Compatibility

Want even more aperture? The AR152 steps up to 152mm for the brightest views in the AR Series with a full 6 inches of aperture. Looking for a lighter grab-and-go option? The AR102 delivers the same optical design at 11.5 lbs and 25.5" of tube. Want color-free APO performance? The ED102 Essential Series steps up to an air-spaced triplet with HOYA FCD1 extra-low dispersion glass, eliminating the chromatic aberration inherent in achromatic designs.

Note: No eyepieces are included — the AR127 is designed for observers who want to choose their own. See our recommended eyepieces below.


Recommended Eyepieces

We recommend the Explore Scientific 52° Series Waterproof Eyepieces — each is fully sealed, nitrogen-purged, and built for years of reliable use:

  • 25mm (33x) – Wide-field scanning of the Orion Nebula, Andromeda Galaxy, and Pleiades star cluster with a bright, expansive view
  • 20mm (41x) – A versatile mid-range magnification for exploring galaxies, nebulae, and open clusters with good detail and field of view
  • 10mm (83x) – Sharp planetary views and double-star splitting, with bright, contrast-rich deep-sky detail
  • 4.5mm (184x) – High-power lunar and planetary detail — Saturn's rings, Jupiter's cloud bands, and intricate lunar craters

If you're starting out, the 25mm delivers bright, sweeping views that make deep-sky objects easy to find. Add the 10mm for a versatile mid-high power option, then build from there.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 50484058633

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arisa
Massapequa, US
★★★★★ 4
Great quality case, keyboard doesn’t work as intended
Color: Dark Cherry
Case is fine and good quality but the keyboard doesn’t work as intended. Bluetooth connects great but the keyboard is formatted incorrectly. For example, when I try to use a dash, it puts an apostrophe instead. I have no idea how to reformat it myself. I’d love just a replacement keyboard
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Reviewed in the United States on January 31, 2026
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Mia Thacker
Bozeman, US
★★★★★ 5
Worth it!
Color: Pink, Color: Pink
Great buy! Worth the money and the color is nice. The keyboard works, some buttons I haven’t figured out but for the most part it’s worth the purchase!
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Reviewed in the United States on May 20, 2026
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Ms Rene Butts
West Palm Beach, US
★★★★★ 5
Nice colors
Color: Yellow
This was a perfect choice for my iPad. The color is very vibrant easy to put on and its sturdy will buy again in another color.
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Reviewed in the United States on May 17, 2026
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Bernie
Fort Morgan, US
★★★★★ 5
Keyboard is magnetic to cover so it doesn’t fall out
Color: Pink
Absolutely love this ! My iPad fits perfectly in this and the keyboard is touch sensitive which I like and the color combo on the keyboard makes it fun ! Definitely will recommend this
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Reviewed in the United States on June 11, 2026
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Kat
San Leandro, US
★★★★★ 5
Great quality case and keyboard
Color: Purple, Color: Purple
Super good quality case, I was actually surprised since it’s such a good price. It fit my 10.9 inch perfectly! Keyboard has magnetic attachment to the case which is super handy, and it connected with Bluetooth seamlessly. Keyboard isn’t silent, it’s on the louder side, but not too loud at all and it doesn’t bother me at all because I prefer clickier keyboards. Oh also something that’s really cool is that you can change the colors of the keyboard, love that!
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Reviewed in the United States on April 10, 2026

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