DayStar Quark H-Alpha Solar Filter for Prominences

Transform Your Refractor into a High-Definition Solar Telescope

Unveil the Dynamic Beauty of Solar Prominences.

Observe the sun’s towering prominences with unparalleled clarity. The DayStar Quark H-Alpha Solar Filter for Prominences is designed to reveal the intricate details of solar flares, looping arches, and plasma ejections in stunning H-alpha. Unlike standard solar filters, this specialized eyepiece allows you to witness the mesmerizing structure of prominences with ease.

Features

• Reveal Towering Solar Prominences with Precision 4.2X Telecentric Barlow: Optimized for 656nm H-alpha light, delivering exceptional contrast and detailed views of prominences and limb activity.
• Precision Tuning for Maximum Detail: Adjust the wavelength by ±0.5Å in 0.1Å increments to fine-tune visibility of prominences, spicules, and edge turbulence.
• Effortless Setup: Works seamlessly with F/4 to F/9 refractors—simply insert, power up, and start observing.
• Telescope Compatibility: Designed for refractors (F/4 to F/9); not suitable for off-axis use with SCTs or Dobsonian telescopes.
• All-in-One Compact Design: Combines a telecentric lens, etalon, and blocking filter into a single, lightweight unit, eliminating extra accessories.
• Enhanced Contrast with Baffled Optics: Light baffles and anti-reflective coatings ensure crisp, high-contrast solar images.
• Compatible with 1.25" Eyepieces: Accepts 1.25" eyepieces and can be inserted into both 1.25" and 2" diagonals for flexible telescope use.
• Portable & Reliable Power: Runs on USB power (5V 1.5A) for all-day operation. An optional battery pack is available for mobile observing.
• Quick Warm-Up Time: Reaches optimal tuning in ~5-6 minutes after power-up or wavelength adjustments.
• Ideal for Full or High-Magnification Viewing: Provides full-disk solar views in refractors up to ~450mm focal length. For longer focal lengths, expect a cropped, high-magnification view of solar regions rather than the entire disk.
• Global Power Compatibility: Includes a 90-240VAC power adapter with US, UK, Euro, and Australian plug options.
• Engineered for Longevity: Built with DayStar’s renowned Fabry-Pérot etalon technology and backed by a 5-year warranty.

Is the DayStar Quark Prominences Right for You?

This specialized solar filter is perfect if:

• You own a refractor telescope and want to explore the sun’s dramatic prominences in high-definition H-alpha light.
  
• You’re fascinated by solar activity and eager to observe looping flares, plasma eruptions, and spicules along the solar limb.
  
• You need a simple, plug-and-play setup without complicated configurations.
  
• You want tunable wavelength adjustments to fine-tune details in prominences and solar limb structures.
  
• You’re looking for a cost-effective way to achieve professional-grade solar imaging with your existing telescope.

Experience the Sun’s Stunning Prominences with the DayStar Quark

Transform your refractor into a powerful solar observatory and witness the breathtaking structures of solar prominences. The DayStar Quark Prominences allows you to capture the towering arches and dynamic plasma motions of the sun’s outer layers.

Unlike standard white-light solar filters that only reveal sunspots, this H-alpha filter highlights prominences with incredible contrast. Its precision-tuned etalon and integrated telecentric optics deliver high-contrast, detailed solar views—without the cost or complexity of a dedicated solar telescope.

Fine-tune your view with the adjustable tuning knob, shifting the wavelength by ±0.5Å in 0.1Å increments to optimize the visibility of solar limb activity, including looping prominences and fast-moving ejections.

The built-in LED indicator system provides real-time feedback on power status and tuning readiness. Powered via USB or an optional battery pack, the Quark is ideal for backyard observing, astrophotography, and mobile setups—ensuring you never miss an exciting solar event.

For short focal-length refractors (~450mm or less), enjoy full-disk views of solar prominences. With longer focal lengths, zoom in on high-magnification details such as plasma ejections and limb spicules—making this a versatile tool for wide-field and close-up solar observing.

Designed for both visual observation and imaging, the Quark delivers stunning real-time H-alpha views through an eyepiece. For astrophotographers, pairing it with a monochrome camera and short exposures produces breathtaking solar images with unmatched clarity.

Built on DayStar’s Fabry-Pérot etalon technology and backed by a 5-year warranty, the Quark is the trusted choice of solar astronomers and astrophotographers seeking professional-grade H-alpha performance in a compact, user-friendly package.

What’s Included in Your DayStar Quark (Prominences) Package?

• DayStar Quark H-Alpha Solar Filter: An all-in-one solar filter with a precision-tuned etalon, 4.2X telecentric barlow, and integrated 12mm blocking filter.
• Durable Protective Storage Case: Keeps your Quark dust-free, secure, and ready for travel.
• USB Power Cord for Reliable Operation: Easily power your Quark using a power bank, laptop, or wall adapter—ideal for long observing sessions.
• Wall Outlet Power Adapter & International Plug Set: Travel-friendly design includes US, UK, Euro, and Australian plugs, so you can power your Quark anywhere.

Recommended Accessories for Peak Performance

To get the best image quality and protect your telescope, we highly recommend the following accessories:

UV/IR Cut Filter – For Refractors Under 80mm

• Reduces heat buildup and protects optics when used before the diagonal.
• Enhances contrast for sharper, more detailed views.

Energy Rejection Filter (ERF) – Required for Refractors Over 80mm

• Blocks excess infrared (IR) and ultraviolet (UV) light, keeping your telescope safe.
• Reduces thermal turbulence, improving image clarity for high-resolution solar viewing.

Energy Management & Heat Handling

The Quark generates some heat during operation but is designed to handle it safely. For refractors under 80mm, a UV/IR cut filter is recommended to reduce excess heat entering the diagonal. For refractors over 80mm, a front-mounted Energy Rejection Filter (ERF) is required to prevent internal heating and optimize image quality.