The Explore Scientific 2" H-Beta nebula filter is designed to enhance observation of emission nebulae, particularly those associated with hydrogen. This filter blocks almost all artificial light and only allows the hydrogen emission lines at 486 nm to pass through, revealing celestial objects hidden under light-polluted skies. Ideal for observing difficult-to-see nebulae like the Horsehead Nebula, this filter offers exceptional contrast and clarity, even under slightly lit skies.

Features:

• Diameter: 2’’
• Blocks almost all artificial light
• Only allows hydrogen emission lines to pass (486 nm)
• Enhances visibility of emission nebulae

Advantages:

• Allows observation of previously invisible nebulae without a filter, such as the Horsehead Nebula
• Increases contrast and sharpness of celestial objects under slightly polluted skies
• An essential tool for amateur astronomers specializing in deep sky observation

Compatibility:

• Compatible with 2’’ eyepiece holders

This H-Beta Explore Scientific filter is perfect for astronomy enthusiasts looking to explore emission nebulae in detail, particularly those dominated by hydrogen.