Baader Filters 1.25" methane filter (20197)

The Baader methane band filter is designed for imaging astronomical objects, particularly planets, using webcams and CCD cameras. It is not suitable for visual observation because the human eye is not sensitive to the spectral range covered by this filter. This filter is ideal for capturing methane absorption features in planetary atmospheres, such as those of Jupiter, Saturn, and Uranus.

Prerequisites for successful use of the filter:

• IR-sensitive astronomy CCD camera with at least 5" of aperture.

• IR-sensitive webcam with at least 8" of aperture.

Specifications:

• Connection (to the telescope): 1.25"

• Coating of optical system: Multi-coated

• Mount material: Aluminium

• Half-value width (nm): 8

• Central wavelength (nm): 889

• Frame size: 1.25"

General Information:

• Type: Filters

• Type of build: Planetary & Comet Filters

Area of Application:

• Visually useful: No

• Useful for photographs: Yes

• Mercury observation: Yes

• Mars observation: Yes

• Jupiter observation: Yes

• Saturn observation: Yes

• Uranus observation: Yes

• Hydrogen nebulae observation: Not applicable

• Planetary nebulae observation: Not applicable