Forum der Vereinigung der Sternfreunde

Dear colleagues,

Yael Nazé (University of Liège in Belgium) sent me a long-term observation request for the eclipsing binary Cyg OB2 #5 to pass it around. Attached is her proposal. Yael is working on massive stars and needs such data for respective investigations. I highly encourage all photometric observers to invest some regular efforts every 4 months into this very target. It’s an interesting professional-amateur project. Please pass this message along to potentially relevant observers and forums/mailing lists.

Best regards, Thomas Eversberg