FU Ori

Alert Notice 425: Monitoring of HBC 722 and VSX J205126.1+440523 Requested

October 1, 2010: Dr. Colin Aspin (U. Hawai'i) has requested the help of AAVSO observers in performing long-term photometric monitoring of the two new young stellar objects (YSOs) in Cygnus, HBC 722 and VSX J205126.1+440523 (see AAVSO Special Notice #216).  

FU Orionis

All in the FUor Family

Image of FU Ori obtained by Cesar Briceño (Centro de Investigaciones de Astronomia (CIDA), Merida, Venezuela) with the 1.2-m telescope at the Fred Lawrence Whipple Observatory, Mt.