Daystar Filters Quantum Calcium II H 5Å… PE

Advanced Solar Research: DayStar introduces filtering systems for Calcium H (3969Å) and two Calcium K-line (3933.7Å), pivotal in solar atmospheric studies.
Dual Absorption Lines: Features two strong absorption lines at 393.3nm and 396.9nm, known as the K and H lines, essential for in-depth Calcium studies on the Sun.
Historical Preference for K-line: Traditionally, the Calcium K line has been favored for academic research due to its isolation from the Hydrogen Epsilon line and comparable sensor sensitivity.
Visual Spectrum Consideration: The H line, being closer to the visual spectrum end (~400nm), is easier to observe visually in high contrast violet color, making it more suitable for visual observations.
Innovative Observational Opportunities: The Calcium II H line provides enhanced visibility for observers, venturing closer to the visual spectrum.
Proven Success in Observatories: Notably used by institutions like the Dutch Open Telescope, the Ca II H line has yielded outstanding imaging results.
Optimized for Clarity and Contrast: Designed to clearly isolate Calcium, offering high contrast and detailed solar imagery.
Professional and Educational Use: Ideal for university research and advanced observatories, facilitating groundbreaking studies in solar physics.

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Daystar Filters Quantum Calcium II H 5Å… PE