![]() Hα filters reveal details on the Sun that are invisible using white-light filters, including flamelike prominences and intricate bright threads called solar plages, which are usually found near sunspots. These block all wavelengths of sunlight except for one - the wavelength emitted by hot hydrogen atoms. These block 99.999 percent of sunlight to allow us to see the Sun’s visible surface, or photosphere, revealing wonderful views of constantly evolving sunspots. ![]() Filters come in two main categories: First are white-light filters. Most experienced Sun-watchers prefer specially designed solar filters that reduce the Sun’s energy to harmless levels. So, in order to safely practice solar viewing, you’ll need the right equipment. We hear these warnings from our parents when we’re young and in the news before every solar eclipse: Never look directly at the Sun. The same solar rays that cause sunburn will also burn your eyes’ retinas - at least, without proper precautions. The Sun is the only celestial object that can easily do you harm. That makes it exciting to watch!īut in order to enjoy the show, you need to come prepared. While most distant deep-sky objects appear static over the course of a human lifespan, the Sun changes every day. With the Sun, there’s no need to pull an all-nighter. And light pollution doesn’t even enter into the equation. Our star is the perfect target for observers. But by doing so, we are missing an amazing matinee every day - one performed by the Sun. We anxiously wait for Sol to set and twilight to fade before we begin to enjoy the sky. For many, astronomy is a late-night pursuit.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |