This star, located on the border with Cygnus, is not visible to the naked eye and represents a significant class of variable stars whose brightness changes in a short period. These are old stars mainly found near the galactic center and in globular clusters, the oldest formations of the galaxy. RR Lyrae pulsates regularly, similar to delta Cephei, but its period is shorter than one day - 0.567 days. During this time - 13 hours and 36 minutes, the apparent brightness fluctuates from 7mag to 8.1mag. The cycle can therefore be observed (from some areas) practically in one night. It is white at maximum and takes on a yellowish hue at minimum.