RR Lyrae distance estimate of . This type of low-mass star has consumed the hydrogen at its core, evolved away from the main sequence, and passed through the red giant stage. Energy is now being produced by the thermonuclear fusion of helium at its core, and the star has entered an evolutionary stage called the horizontal branch (HB). The effective temperature of an HB star's outer envelope will gradually increase over time. When its resulting stellar classification enters a range known as the instability strip—typically at stellar class A—the outer envelope can begin to pulsate. RR Lyrae shows just such a regular
Red Giant (software company) garnering critical acclaim for its uniqueness in marketing products for filmmakers. Since then Red Giant’s film team has gone on to make 8 films and many film team experiments, wherein they share their process for creating Hollywood visual effects. In 2015 actor/comedian Patton Oswalt narrated Old/New, a Red Giant film created to market the release of Magic Bullet Suite 13. All of the Red Giant films can be viewed on the Red Giant Films YouTube channel. Red Giant (software company) Founded in 2002, Red Giant is a software company made up of artists and technologists who collaborate on the creation