DayStar Filters SolaREDi QT127mm f/21 Prominence H-Alpha Solar Telescope (SE Grade, OTA Only)

DayStar Filters SolaREDi QT127mm f/21 Prominence H-alpha Solar Telescope (SE Grade)

Features

• Integrated Hydrogen-Alpha Solar Filter
• For Amateur and Limited Research Use
• 127mm Refractor Solar Scope
• 2667mm Focal Length, f/21 Focal Ratio
• Electronic Quantum Doppler Tuning
• Tuned for Prominence Viewing
• 0.01Å Tuning Accuracy
• ±1.0Å Offset Capability
• 2" Steeltrack Rack-and-Pinion Focuser
• Vixen-Style Dovetail Mounting Rings

DayStar Filters redesigned their standard-grade SolaREDi QT 127mm f/21 Prominence H-Alpha Solar Telescope to make it lighter and shorter for easier handling and use on smaller mounts. It combines a full-aperture solar filter with the same electronic tuning system used in their Quantum-series filters to produce a powerful and effective dedicated solar-viewing telescope. This version of the solar scope allows you to study details of solar prominences in high contrast against the stark black backdrop of space. Prominences, details of the chromosphere projected against the blackness of space behind the sun, are seen with improved contrast due to the filter's narrower bandpass versus a wider bandpass filter tuned for conventional chromosphere surface viewing. DayStar outfitted the SolaREDi with a standard filter system and is ideal for general-purpose amateur and limited research use. To protect this delicate instrument, it comes in a Pelican Storm Case with a custom-cut foam insert.

Optical Tube

• Large 127mm f/21 aperture helps to reveal fine details
• Long 2667mm focal length produces a high magnification potential
• Achromatic doublet refractor-style optical configuration is reliable, easy to maintain, and does not require periodic collimation
• Integrated 2-element Barlow system produces a longer effective focal length than the optical tube length
• Carbon fiber optical tube construction reduces weight without sacrificing strength or stability while being resistant to expansion/contraction experienced by metal tubes when moving between extreme temperature changes
• 2" steeltrack rack-and-pinion focuser can carry heavier loads, such as imaging systems, without flexing—ensuring the optical path stays straight and true
• Focus lock mechanism prevents focus shift to ensure consistent images
• 1.25" reducer adapter to use smaller eyepieces

Solar Filter

• Standard (SE) grade filter system is ideal for amateur and limited research use
• Permanent solar-viewing filter calibrated for the Hydrogen-alpha wavelength at 6562.8Å
• Tuned for viewing prominences against the stark black backdrop of space, with a bandpass typically between 7 and 8Å
• Prominences are created when material from the chromosphere is ejected from the surface and are visible from Earth
• Precision electronic tuning system
• Digital display shows tuning
• Accurate to 0.01Å in center wavelength
• Enables wavelength to be offset as much as 1.0Å in either direction for Doppler shift compensation and to highlight specific areas
• Runs on 12 VDC power with included adapter or user-supplied battery bank

Mounting

• OTA only—mount and tripod required for proper use
• Includes mounting ring set with Vixen-style dovetail plate
• Length of 29 inches (31.1 with dew shield)
• Weight of 13 pounds