It is a semi-regular variable star that has its brightness change by 0.2 magnitudes over an ill-defined period.

It has cooled to 3,394 K (3,121 °C),[6] giving Delta2 Lyrae a reddish hue typical of M-type stars.

[2] Multiple star catalogues list several companions to δ2 Lyrae, with designations such as ADS 11825.

In this case, the ADS 11825BC pair would be 24,000 AU away from δ2 Lyrae, and it would take 24,000 years for it to make an orbit.

The two stars in the BC system take at least 10,500 years to make an orbit and are separated by 600 AU.