H-Beta 1,25" nebula filter from Explore Scientific is ideal for enhancing 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, which reveals celestial objects that are invisible without a filter, such as the Horsehead Nebula. With improved contrast, even under slightly illuminated skies, this filter is an essential tool for amateur astronomers passionate about deep-sky exploration.

Features:

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

Benefits:

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

Compatibility:

• Compatible with 1.25’’ eyepiece holders

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