D-type symbiotic star

D-type symbiotic star

[¦dē‚tīp ‚sim·bē‚äd·ik ′stär]
(astronomy)
A member of a class of symbiotic stars that show infrared emission indicative of astronomical dust, that is, thermal radiation at average temperatures of typically 1000 K; it generally contains Mira variables and has binary periods longer than 10 years.