DH Dra: An Interesting Red Variable
Volume 20 number 2 (1991)
- Dietmar Boehme
- Nr.11, PSF 93, D-04851 Nessa, Germany
Abstract
The variable star DH Dra was observed on plates of the Sonneberg Sky Survey. It has a complex light curve and shows periods of approximately 225-240 and 550 days.