omi cet

Special Notice #69: Update on AN 358 Mira monitoring campaign

September 20, 2007: As announced in AAVSO Alert Notice 358, we are approaching the scheduled HST observing time for omi Cet (AAVSO 0214-03). Observations are currently planned for 2007 September 23, 19:00-23:30 UT. Dr. Margarita Karovska (CfA) and collaborators are using HST to observe Mira AB and study the behavior of the mass flow and mass transfer within this system. Optical observations -- visual and instrumental -- are requested for this campaign.

Alert Notice 358: Monitoring of Mira (omi Cet) in support of HST Observations

September 17, 2007: Dr. Margarita Karovska (Harvard-Smithsonian Center for Astrophysics) and
collaborators are performing a comprehensive study of the Mira AB interacting system, using the WFPC2 camera on the Hubble Space Telescope. Mira AB is composed of the prototype Mira variable omi Cet and its companion VZ Cet, separated by about 0.5 arcsecond. As part of this project they plan to obtain a large number of high-angular resolution images at wavelengths ranging from UV to optical.  The main objectives of the HST/WFPC2 observations are: