Each RGB filter isolates a specific range of wavelengths to highlight unique features of celestial objects:
- Red filter: Focuses on longer wavelengths (~600–700 nm), emphasizing hydrogen-alpha emissions common in nebulae.
- Green filter: Captures medium wavelengths (~500–570 nm) to balance colors and enhance natural hues.
- Blue filter: Isolates shorter wavelengths (~400–500 nm), bringing out details in star clusters and cosmic dust.
By capturing separate images through these filters, astrophotographers can reconstruct vibrant, true-to-life color images that reveal the universe’s hidden details.
