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[vsnet-symbio 237] BI Cru Deep Minimum

Date: Sat, 26 Apr 2003 21:30:37 +1000
To: "vsnet-symbio" <vsnet-symbio@ooruri.kusastro.kyoto-u.ac.jp>
From: "Peter F Williams" <pfwilliams@onaustralia.com.au>
Subject: [vsnet-symbio 237] BI Cru Deep Minimum
Cc: "vsnet-obs" <vsnet-obs@ooruri.kusastro.kyoto-u.ac.jp>,"vsnet-chat" <vsnet-chat@ooruri.kusastro.kyoto-u.ac.jp>
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The ZAND star BI Cru is undergoing its second deep decline in six months. 
It was previously near magnitude 13 during 2002 September and has again
declined to from magnitude 11 to 13 between 2003 February and April, an
interval of approximately 180 days since the previous minimum.  Listed here
are recent visual observations from Heathcote of the current decline that
suggest it may have already passed minimum.

STAR	YYMMDD(UT)	MAG	OBSERVER

CRUBI	20030211.518	109	WPX
CRUBI	20030226.494	115	WPX
CRUBI	20030302.467	117	WPX
CRUBI	20030312.485	123	WPX
CRUBI	20030314.474	128	WPX
CRUBI	20030409.517	133	WPX
CRUBI	20030414.479	130	WPX
CRUBI	20030421.499	131	WPX


Regards

Peter Williams
Heathcote NSW

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