Explore Scientific AR127 Doublet Refractor
with Twilight I Alt-Azimuth Mount
This AR127 Doublet Refractor by Explore Scientific features air-spaced doublet optics produced from flint and crown glass to give you astonishing celestial views. You will be astounded by the marvelous views in your scope of the Moon, Saturn, Mars, Jupiter, Venus, and even the Sun with the correct filtration. Enjoy crisp, clear views of deep-sky objects such as the Orion Nebula, the fantastic M-13 star cluster in Hercules, or the great Andromeda Galaxy.
The Explore Scientific Twilight I mount and tripod is the perfect companion to the AR127. You will be able to set up in moments wherever you are and glide effortlessly from one object of interest to another. The AR127/Twilight set-up is also perfect for terrestrial use! Set it up on your deck or in your backyard and explore the local terrain. The large aperture of this telescope will give you bright images, even in lower light conditions of dusk and dawn.
This telescope package also includes some nice accessories to help get you started on your explorations of the cosmos. You’ll receive a full-sized 8 x 50 finderscope and bracket to help you zero in on your subjects. The included dual speed, 10:1 Crayford-style focuser has coarse and fine focus knobs, giving you the ability to tweak your focus until it’s perfect! A 2” diagonal, with 99% dielectric coatings, slides into the 2” focuser and locks into place. It is ready to accept the 2” eyepiece of your choice, or you can insert the included 2" to 1.25” adapter and use 1.25” eyepieces instead. Eyepieces are sold separately.
A metal cradle ring assembly is also included with the Explore AR127. The bottom of the ring assembly consists of a Vixen-style dovetail, which means your telescope will not only fit the included Twilight I mount but any mount that accepts the standard Vixen dovetail, of which there are many. The top of the cradle ring assembly functions as a carry handle, a super smart design element that you will appreciate every time you use the AR127!
About the Explore Twilight I Mount
The Twilight I alt-azimuth mount head is made of powder-coated aluminum and there are worm gears on both axes. The adjustable angle head can be tilted forward or back at a 45° angle, or you can point it straight up for viewing at the zenith. Slow motion control cables are attached on the vertical and horizontal axes and are easy to turn during the night, even with gloves on, due to the over-sized knurled knobs that are attached to the end of each cable. A small wrench is included with this package, and is stored in the fork arm and held in place with a magnet. If you need to make quick adjustments to your mount, it is a snap to access the wrench and then store it safely away when done. It is a small thing, but an adjustable wrench is one less tool you will need to remember to bring with you on observing sessions!
The chrome-plated steel tripod that comes standard with the Twilight I mount has adjustable legs and a wide footprint of 42 inches, which makes the tripod more stable. A spreader bar locks against the inside of the legs to secure the tripod even further and keep vibrations to a minimum.
- Explore Scientific 127 mm Achromatic Refractor OTA
- Removable Dew Shield
- Cradle Rings with Handle, Universal V Series Saddle Plate
- 10:1 Two-Speed 2" Crayford Focuser
- 8x50 Straight Finder Scope
- Six Point Adjustable Bracket
- 2" 99% Reflectivity Mirror Diagonal
- 1.25" Adapter
- Twilight I Alt-Az Mount
- (2) Manual slow-motion control knobs
- Heavy-duty steel tripod
Dimensions & Specifications
Telescope Series: Explore AR Air-Spaced Doublet
Telescope Optical Design: Refractor
Refractor Design: Achromat
Number of Refractor Elements: 2
Telescope Aperture: 5"
Telescope Focal Ratio: f/6.5
Telescope Focal Length: 826 mm
Optical Coatings: Explore EMD
Secondary Mirror Central Obstruction: N/A
Limiting Stellar Magnitude: 13
Telescope Tripod Included: Yes
Diagonal Included: Yes - 2" Star Diagonal
Finder Included: Yes - 8 x 50 Finder Included
Focuser Style: Crayford/Crayford Style
Focuser Size: 2"
Focuser Speed: Dual Speed
Telescope Mount Type: Alt-Azimuth
Telescope Mount Weight Capacity: 15 lb.
Telescope OTA Diameter: 5.12" (130 mm)
Telescope OTA Length: 34" (863 mm)
Telescope OTA Weight: 15 lbs
Telescope Tripod Weight: 11 lbs
Telescope Total Weight: 26.6 lbs
We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.
Limited Warranty is one year, which converts to the Explore STAR Transferrable Extended Life of the Product Warranty when product is registered within 60 days of purchase.
Return & Exchange Policy
At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.
Most Helpful Reviews
Most Critical Reviews
Displaying Reviews 1-10 of