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giant variables

Alert Notice 441: Monitoring of Bright Giant Variables requested in support of ground-based spectroscopy and for long-term study

May 27, 2011: Dr. Steve Howell (NASA) and Dr. Travis Rector (University of Alaska, Anchorage) have requested AAVSO observations of several bright giant variable stars of diverse classes.  This request is for immediate support of spectroscopic observations to be made at Kitt Peak National Observatory between 2011 May 30 and 2011 June 01 (JD 2455712 - 714).  However, observers are encouraged to continue long-term monitoring of these objects.

AAVSO 49 Bay State Rd. Cambridge, MA 02138 617-354-0484