From the October 2007 issue

What is a solar prominence, and what equipment do you need to photograph one?

Amber Barton, El Paso, Texas
By | Published: October 1, 2007 | Last updated on May 18, 2023
Solar prominences are dense clouds of ionized gas (plasma). Located in the solar corona, where temperatures are the hottest, these clouds are relatively cooler and appear as dark filaments against the Sun’s bright disk.