Explore Scientific Sidara Plus 127 — 127mm Refractor Telescope with Alt-Az Mount

Large-aperture refractors deliver a combination of contrast and resolution: no central obstruction, no diffraction spikes. The Explore Scientific Sidara Plus 127 puts 127mm of doublet refractor aperture on the Plus alt-az mount with SkyAssist navigation, creating a visual observing system that excels on the Moon, planets, and brighter deep-sky targets.

At f/6.5, the 820mm focal length strikes a balance between magnification and field of view.

The Plus mount provides smooth slow-motion tracking across both axes. Compared to the Nano, the Plus mount is built for heavier optical tubes. SkyAssist smartphone integration adds guided navigation, letting you locate celestial targets through the companion app.

Key Features

• 127mm doublet refractor at f/6.5, an unobstructed aperture for planetary and lunar targets
• Plus alt-az mount with slow-motion controls
• SkyAssist smartphone navigation guides you to celestial targets through the companion app
• 45° erect-image diagonal for comfortable daytime terrestrial use
• Solar filter included: a cap that fits over the front of the tube, marked to read its directions before use; follow those directions before viewing sunspots and solar features
• Two eyepieces (25mm and 10mm) provide 33x and 82x magnification

Ideal For

Lunar and planetary observers who want clear views of lunar detail and planetary structure. Dual-purpose users will find the included diagonal and solar filter make this a capable daytime system as well. Observers upgrading from a smaller refractor will notice the 127mm aperture resolves targets that an 80mm or 90mm cannot.