Alluxa introduces two Hydrogen Alpha (H-Alpha) Emission Line Filters that are revolutionizing the ultra-narrow optical filters market. Though these new filters have been specifically tailored to ...

Alluxa, Inc., a global leader in high-performance optical coatings, filters, and thin-film deposition technologies, announces the development of two groundbreaking Hydrogen Alpha (H-alpha) Emission ...

The reason involves how astroimagers targeting a total solar eclipse want to allocate their time. In short, you can take an Hα shot of the Sun on any day. A shot during the partial phases of an ...

A very intense burst of Hydrogen-alpha (H-alpha) on the limb side of of this sunspot was imaged with a Coronado 90mm SolarMax H-alpha filter and a Meade 5-inch apochromatic refractor. All images Jack ...

Filters are certainly very useful pieces of technology when it comes to astronomy. Although they may seem like a low technology piece of equipment, once you start looking deeper, you realize that they ...