List of products by brand Altair Astro

Altair Astro Limited is a British retailer and manufacturer of astronomical equipment.

Altair Astro started trading in 2000 as a partnership, and since 2004 as a Limited Company. Altair Astro is run by experienced amateur astronomers, and all products are designed from our experience in amateur astronomy. Specializing in the manufacture of narrow-band and broad-band filters for astrophotography.

Altair Astro is a recognized brand in the world of amateur and professional astronomy, noted for its dedication to providing high quality equipment and accessories. One of the highlights of its catalog is the range of astronomical filters, designed to meet the needs of the most demanding astronomers.

### Altair Astro Astronomical Filters

Altair Astro offers a wide variety of filters, each precisely developed to enhance observation and astrophotography. These filters are essential for those seeking to capture specific details of the night sky, reducing light interference and highlighting certain spectrums of light. Some of the brand's most popular filter types are described below:

#### Narrowband Filters (Narrowband)

Altair Astro narrowband filters are designed to allow light at very specific wavelengths to pass through, blocking all others. This is ideal for astrophotography of nebulae and other deep sky objects, as it increases contrast and allows fine detail to be captured. These include:

- **H-alpha filter (Ha)**: Allows light to pass through in the hydrogen alpha emission line, ideal for capturing details in emission nebulae.

- **OIII Filter (Oxygen III)**: Transmits light emitted by ionized oxygen, very useful for observing supernova remnants and certain planetary nebulae.

- **SII Filter (Sulfur II)**: Transmits light in the sulfur emission line, used in combination with the Ha and OIII filters to create images in the Hubble palette.

#### Luminance and Color Filters

Altair Astro also offers luminance and color filters, which are essential for broadband astrophotography:

- **Luminance Filter (L)**: Allows a wide range of wavelengths to pass through, capturing the maximum amount of light possible and providing a clear, detailed image.

- **RGB Filters**: Sets of red (R), green (G) and blue (B) filters that enable the capture of color images. These filters are essential for recreating true color images from space.

#### Light Pollution Reduction Filters (LPR)

Light pollution is one of the biggest challenges to modern astronomical observing. Altair Astro has developed filters specifically to mitigate this problem:

- **UHC (Ultra High Contrast)** filters: designed to enhance the contrast of nebulae by blocking light from common artificial sources such as mercury and sodium lights.

- **CLS (City Light Suppression)** filters: Reduce light pollution in urban environments, allowing better observation of deep sky objects even from areas with high artificial light.

### Quality and Accuracy

The quality of Altair Astro filters is the result of meticulous engineering and premium materials. Each filter is made from high purity optical glass and coated with multiple layers to ensure maximum light transmission and durability. In addition, the filters are designed to minimize internal reflections and provide crisp, clear images.

### Conclusion

Altair Astro has established itself as a leading brand in the world of astronomy, especially thanks to its commitment to quality and innovation in the manufacturing of astronomical filters. Whether you are an amateur astronomer or a professional astrophotographer, Altair Astro filters offer the tools you need to explore the cosmos with greater detail and precision.