Microvariability of CH Cygni at Minimum (Abstract)

Volume 29 number 2 (2001)

Mario Motta

806 Lowell Street Lynnfield, MA 01940

Abstract

(Abstract only) CH Cygni is a symbiotic star system that has been shown to have multiple variable periods ranging from minutes to over 1000 days. During the 1999 annual meeting, I presented data documenting the microvariability of CH Cygni. Those data spanned a time that had CH Cygni at a visual magnitude of 7.4. This past summer CH Cygni dimmed to visual magnitude 9.3, and this paper documents its behavior (microvariability) at its minimum state.