H-Beta Nebula Filter 1.25"

The 1.25" H-Beta Nebula Filter from Explore Scientific is ideal for improving the observation of emission nebulae dominated by hydrogen. This filter blocks almost all artificial light, only allowing the hydrogen emission lines at 486 nm to pass through, revealing invisible celestial objects without a filter, such as the Horsehead Nebula. With improved contrast, even under lightly illuminated skies, this filter is an indispensable tool for amateur astronomers passionate about exploring the deep sky.

Characteristics :

• Diameter: 1.25’’
• Blocks almost all artificial light
• Allows only hydrogen emission lines (486 nm) to pass through
• Optimized for observing emission nebulae

Advantages :

• Reveals difficult-to-see nebulae without a filter, such as the Horsehead Nebula
• Improves sharpness and contrast of observations under light-polluted skies
• An essential tool for amateur astronomers passionate about deep-sky exploration

Compatibility :

• Compatible with 1.25’’ eyepieces

The Explore Scientific H-Beta Filter is perfect for sharper and more detailed observations of hydrogen-dominated nebulae, allowing for an enriched observation experience.